CN1871368A - 时效延性及蠕变断裂强度优良的制氢反应管用耐热铸钢 - Google Patents

时效延性及蠕变断裂强度优良的制氢反应管用耐热铸钢 Download PDF

Info

Publication number
CN1871368A
CN1871368A CNA2004800307832A CN200480030783A CN1871368A CN 1871368 A CN1871368 A CN 1871368A CN A2004800307832 A CNA2004800307832 A CN A2004800307832A CN 200480030783 A CN200480030783 A CN 200480030783A CN 1871368 A CN1871368 A CN 1871368A
Authority
CN
China
Prior art keywords
cast steel
reaction tube
ductility
resistant cast
creep
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2004800307832A
Other languages
English (en)
Other versions
CN100564566C (zh
Inventor
高桥诚
桥本国秀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Publication of CN1871368A publication Critical patent/CN1871368A/zh
Application granted granted Critical
Publication of CN100564566C publication Critical patent/CN100564566C/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/06—Cast-iron alloys containing chromium
    • C22C37/08—Cast-iron alloys containing chromium with nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/382—Multi-step processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/384—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts the catalyst being continuously externally heated
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/386—Catalytic partial combustion
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
    • B01J2219/0277—Metal based
    • B01J2219/0286—Steel
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/025—Processes for making hydrogen or synthesis gas containing a partial oxidation step
    • C01B2203/0261—Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a catalytic partial oxidation step [CPO]
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/06—Integration with other chemical processes
    • C01B2203/066—Integration with other chemical processes with fuel cells
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C01B2203/1052—Nickel or cobalt catalysts
    • C01B2203/1058—Nickel catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C01B2203/1064—Platinum group metal catalysts
    • C01B2203/107—Platinum catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1076—Copper or zinc-based catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1217—Alcohols
    • C01B2203/1223—Methanol
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1217—Alcohols
    • C01B2203/1229—Ethanol
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235—Hydrocarbons
    • C01B2203/1241—Natural gas or methane
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1276—Mixing of different feed components
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/14—Details of the flowsheet
    • C01B2203/142—At least two reforming, decomposition or partial oxidation steps in series
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16—Controlling the process
    • C01B2203/1604—Starting up the process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16—Controlling the process
    • C01B2203/1614—Controlling the temperature
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16—Controlling the process
    • C01B2203/1685—Control based on demand of downstream process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/80—Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
    • C01B2203/82—Several process steps of C01B2203/02 - C01B2203/08 integrated into a single apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
    • H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Fuel Cell (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

作为燃料电池用制氢装置等的水蒸气改质反应管材料是高温强度、时效延性、疲劳特性等优良的耐热铸钢，含有C：0.1～0.5％、Si：2.5％以下、Mn：2.5％以下、Cr：15～26％、Ni：8～23％、Nb：0.1～1.2％、Ti：0.01～1.0％、Ce：0.001～0.15％、N：0.06％以下，其余部分实质上为Fe，具有由式P＝89.3－78.4C+0.1Si－5.7Mn－1.7Cr+0.01Ni+2Nb+5.3Ti－36.5N－50.8Ce算出的P值是20～45的化学组成。根据需要，含有B：0.001～0.05％、Zr：0.01～0.5％、La：0.001～0.15％的1种以上，和/或Al：0.01～0.3％。还根据需要限制在C：0.1～0.3％、Cr：15～20％、Ni：8～18％。

Description

时效延性及蠕变断裂强度优良的 制氢反应管用耐热铸钢
技术领域
本发明涉及作为以石油系燃料、天然气等烃类为原料，经水蒸气改质反应生成氢或以氢为主要成分的合成气体的制氢用反应管的管材料，时效延性与蠕变断裂强度优良的耐热铸钢。
背景技术
在作为石油炼制工厂的制氢装置的水蒸气改质炉中，向反应管中送入石油系燃料(石脑油，粗制汽油等)和水蒸气的混合气体，在高温、加压(温度：约700～900℃、压力：约1-3MPa)条件下，通过催化剂进行改质反应[ ]生成以氢为主要成分的合成气体。该改质反应管要求具有高温强度、高温蠕变强度，使之能够经受高温·加压条件下的长期连续运转。过去，作为这种管材料使用作为析出强化型合金的高碳高Cr-Ni系耐热铸钢。具体地讲，SCH22(0.4C-25Cr-20Ni-Fe)为第1代材料，接着使用1N519(0.3C-24Cr-24Ni-1.5Nb-Fe)为第2代材料，又开发了将微量的Nb，Ti等合金化而得到的HP-Nb，Ti材料(0.5C-25Cr-35Ni-Nb，Ti-Fe)等微合金化材料作为第3代材料直到现在。
专利文献1：特公昭55-47105号公报
专利文献2：特公昭57-40900号公报
专利文献3：特开平5-239599号公报
近年，作为环境污染对策要求清洁能源的呼声增高，以氢为燃料的燃料电池受到注目，例如被认为有希望作为汽车等的动力源等，并且正在开发作为小型的分散型电源等，一部分正在实用化。与此相应，作为对燃料电池供给氢的制氢装置，除石脑油，液化石油气(LPG)等之外，争相开发城市燃气(LNG)，醇类、煤油、柴油等烃类为原料的小型制氢装置、就地型制氢装置(所谓“氢站”等)。
燃料电池用制氢装置的水蒸气改质反应，若与石油炼制工厂中的大型装置的操作条件相比，则在比较低的低温、低压(温度：约750～800℃、压力：约1MPa以下)下进行，但燃料电池在白天与夜间的电力需求变动大，因此制氢装置的运转要求按照电力需求重复改质反应管的负荷变动。如果每天重复这样的负荷变动，则反应管重叠积累蠕变和疲劳，成为疲劳破坏的原固。因此，燃料电池用制氢装置的改质反应管要求高温强度、高温蠕变断裂强度等，同时要求疲劳特性优良。石油炼制工厂的大型装置中使用的前述析出强化型的高C高Cr-Ni系耐热铸钢是具备高温高压下连续运转所必须的高温特性(高温强度·蠕变断裂强度)的材料，但负荷变动型的制氢装置所要求的时效延性及耐疲劳破坏性方面存在问题，不能保证长期稳定使用。另外，在800℃左右的温度范围下的长期使用环境中使用HK40材料等，所指出的σ相析出导致的脆化现象也成为问题。
发明内容
本发明目的是解决有关制氢用改质反应管材料的上述问题，提供一种耐热铸钢，其作为水蒸气改质反应管不仅保持高温、加压的使用环境中所必须的耐热性、高温蠕变断裂强度，而且兼具用于提高如燃料电池用制氢装置那样重复负荷变动的反应管的耐久性稳定性的、得到改善的时效延性及疲劳特性，并且经济性更优良。
本发明的制氢反应管用耐热铸钢的特征在于，按质量％计，包括C：0.1～0.5％、Si：2.5％以下、Mn：2.5％以下、Cr：15～26％、Ni：8～23％、Nb：0.1～1.2％、Ti：0.01～1.0％、Ce：0.001～0.15％、N：0.06％以下，其余实质上是Fe，用下式[1]表示的参数值P是20～45。
P＝89.3-78.4C+0.1Si-5.7Mn-1.7Cr
   +0.01Ni+2Nb+5.3Ti-36.5N-50.8Ce......[1]
再者，式[1]中的各元素符号表示该元素的含量(％)。
本发明的耐热铸钢，根据需要还可是含有下述(1)～(3)的任何一种组合元素的组成：
(1)选自B：0.001～0.05％、Zr：0.01～0.5％、La：0.001～0.15％的1种乃至2种以上。
(2)Al：0.01～0.3％
(3)选自B：0.001～0.05％、Zr：0.01～0.5％、La：0.001～0.15％的1种乃至2种以上及Al：0.01～0.3％。
另外，本发明的耐热铸钢，根据需要可以是限制在C：0.1～0.3％，并且对Cr及Ni，调节在Cr：15～20％、Ni：8～18％范围的组成。
具有上述化学组成的本发明的耐热铸钢，由于在奥氏体相的基体中具有铬碳化物(Cr23C6)等析出强化粒子分散析出的金属组织，故具有制氢装置的水蒸气改质器反应在高温高压环境下所必须的耐热性、高温蠕变断裂强度，并且高温长时间的时效下的二次碳化物的析出得到抑制，除此之外，也没有以往使用HK40材料指为问题的σ相析出导致的脆化，作为这些效果在长期的使用过程中，可稳定地维持高水平的伸展。作为该时效延性的改善效果，可确保如燃料电池用制氢装置那样负荷变动造成的热疲劳周期重复的改质器反应管所必须的、得到改进的疲劳特性，从而可以提高耐用寿命。
具体实施方式
本发明的耐热铸钢，为了确保对制氢用水蒸气改质反应的高温·高压环境的耐热性、高温强度，并确保负荷变动型的使用环境所要求的时效延性、疲劳特性，调整成以下的组成。成分含量均是质量％。
C：0.1～0.5％
C在熔钢铸造凝固时与Nb结合在晶界形成NbC结晶并析出，另外，反应管在高温使用时，在奥氏体相的基体中固溶的C与Cr结合，析出生成微细的铬碳化物(Cr23C6)。作为这些的析出强化作用，可提高蠕变断裂强度。作为装入石油炼制工厂的大型装置中的改质器反应管，为获得能耐受达到1000℃使用环境的蠕变断裂强度用的C量要求为0.1％以上。增加C量可提高蠕变断裂强度，但大于0.5％时，随着长期高温使用过程中析出的二次碳化物(Cr23C6)积累增加造成的延性降低，疲劳特性遭到破坏。因此，要求将C量限制在0.5％以下。作为如燃料电池用制氢装置等负荷变动重复的就地型装置的反应管材料，对于要求将疲劳特性维持在更高水平的用途来讲，希望限制在0.1％～0.3％的范围。
Si：2.5％以下
Si是为了熔钢脱氧及铸造时赋予熔钢流动性而添加的元素。为获得这种效果用的含量达到2.5％即充分，大于2.5％时，不仅时效延性降低，而且导致构成制氢装置的改质器的配管施工中所需的可焊性降低。故优选是0.3～1.0％。
Mn：2.5％以下
Mn是通过熔钢的脱氧以及熔钢中S的固定(形成MnS)，提高改质器的配管施工中所需的可焊性，并且有助于改善延性的元素。对于该效果，由于Mn含量超过2.5％时大致饱和，故2.5％为上限。优选是0.4～1％。
Cr：15～26％
Cr是确保高温强度及耐氧化性所必须的元素。为了确保能耐受石油炼制工厂的大型制氢装置的反应管所要求的达到1000℃的高温使用环境的蠕变断裂强度，要求至少含有Cr 15％。高温强度及耐氧化性虽然随Cr量增加而提高，但大于26％时，耐氧化性提高，但另一方面，造成时效延性降低和随之的疲劳特性降低。这种疲劳特性的降低是伴随长时间使用过程中析出的铬碳化物(Cr23C6)积累增加产生的现象。因此，Cr含量以26％为上限。此外，如以燃料电池为对象的就地型制氢装置的改质器反应管那样，对于要求将与负荷变动相对应的疲劳特性维持在更高水平的使用环境来讲，期望限制在15～20％的范围。另一方面，如石油炼制工厂的大型制氢装置那样，对于在高温区域中连续运转的使用环境来讲，使Cr量为20～26％的高范围是有利的。
Ni：8～23％
Ni是确保耐氧化性及金属组织稳定性所必须的元素。含量低于8％时，难确保改质器反应管所要求的高温蠕变断裂强度，另外时效后的延性降低也增大。因此，要求Ni含量是8％以上。然而，Ni量增加，使基体中的C固溶量减少，这助长了反应管实际使用过程中二次碳化物(主要是Cr23C6)析出·增量，结果，导致时效延性降低及疲劳特性劣化。所以，Ni含量不能超过23％。此外，如装入燃料电池用的就地制氢装置中的改质器反应管那样，对于要求将与负荷变动相对应的疲劳特性维持在更高水平的使用环境来讲，期望为8～18％的范围。另一方面，如石油炼制工厂的大型制氢装置那样，对于在高温区域连续运转的用途来讲，为18～23％的高范围是有利的。
Nb：0.1～1.2％
Nb与C结合形成NbC，提高蠕变断裂强度，并且有助于提高时效延性。这种效果可通过含有0.1％以上Nb获得。但由于增加量太多会导致耐氧化性降低，故1.2％为上限。
Ti：0.01～1.0％
Ti有强的脱氧作用，另外，在基体中固溶时与C结合，析出生成微细的(Nb，Ti)C复碳化物，故起提高蠕变断裂强度的作用。为了获得这种效果，必须至少0.01％。但量增加太多时，由于随着钛氧化物生成量增加损害钢的清洁度，导致品质降低，故以1.0％为上限。
Ce：0.001～0.15％
Ce有助于在基体中固溶后提高高温耐氧化性。为了获得这种效果，必须含有0.001％以上。优选是0.01％以上。随着Ce量增加而效果增大，但量增加太多时，由于生成大量的铈氧化物，破坏清洁度，造成品质降低。故以0.15％为上限。
N：0.06％以下
N是间隙固溶型元素，具有使基体的奥氏体相稳定，提高高温拉伸强度的效果。然而，N增加量太多时，导致在800℃左右的温度区域的时效延性降低。为了抑制该延性降低，以0.06％为上限。优选是0.01～0.05。
B：0.001～0.05％
B在晶界析出提高粒界延性，另外，抑制铬碳化物(Cr23C6)的粒成长(粗大化)，有助于蠕变断裂强度的提高。该效果通过含有0.001％以上的B获得。然而超过0.05％量增多时，焊接裂纹敏感性增高，损害了改质反应管的配管施工所必须的可焊性，故把0.05％定为上限。
Zr：0.01～0.5％
Zr析出生成MC型碳化物，有提高蠕变断裂强度的作用。该效果通过含有0.01％以上的Zr获得。量增加则增大效果，但含有超过0.5％的大量时，则由于锆氧化物的生成量增加导致清洁度降低和因此造成延性降低，故把0.5％定为上限。
La：0.001～0.15％
La在基体中固溶提高高温耐氧化性。该效果通过含有0.001％以上的La获得。其效果随La量增加而增大，但量增加太多时，由于镧氧化物的生成量多而导致清洁度降低及延性降低，故把0.15％定为上限。优选是0.01％～0.1％。
Al：0.01～0.3％
Al是作为脱氧剂而被添加，同时有提高高温耐氧化性效果的元素。该效果通过含有0.01％以上的Al获得。然而，超过0.3％大量地含有时，由于铝系氧化物生成量的增加而破坏钢的清洁度，导致延性降低，故把0.3％作为上限。
本发明的耐热铸钢的化学组成，除了对各构成元素的上述规定外，还要求前述式[1]的参数值[P＝89.3-78.4C+0.1Si-5.7Mn-1.7Cr+0.01Ni+2Nb+5.3Ti-36.5N-50.8Ce]被调整到满足P＝20～45的成分平衡。该式根据时效延性的评价试验[800℃×3000小时的时效处理后，测定断裂伸长]实验性地求出，该参数值P(＝20～45)是作为用于保持高温蠕变断裂强度，并且确保时效后断裂伸长率≥20％这种高延性的条件而得到的值。作为利用该成分平衡调整而得到的显著改善时效延性的效果，可保证如就地型制氢装置等那样疲劳破坏成为问题的负荷变动型改质器反应管所要求的、得到改善的疲劳特性。
本发明的耐热铸管制的改质器反应管，利用离心力铸造制成铸造管，因此在成本上明显地比热塑性加工的制管工序有利，制得的铸造管体，在实施精机械加工后，可作为改质器构成管材采用焊接施工而被组装。
实施例
利用高频感应熔解炉的Ar气环境熔解，熔制具有给定组成的铸钢溶液，采用金属模离心力铸造，铸造试验管。管尺寸(机械加工后)：外径137×壁厚20×长度260(mm)。对从各试验材料切出的试片进行拉伸断裂试验、蠕变断裂试验、疲劳寿命试验及金属组织的显微镜观察。再者，对蠕变断裂试验在铸造状态下进行试验，对蠕变断裂试验以外的试验在电炉中实施时效处理后进行试验。
把各试验用材料的钢组成示于表1，把各试验结果示于表2。
<I>时效拉伸延性
对长方形的试片实施时效处理(800℃×3000小时)后，制作拉伸试片，采用根据JIS-Z2241的拉伸试验测定断裂伸长率。
试片形状：平行部直径8.75mm-4D
试验温度：室温
表2中“时效后的断裂延性”栏的符号如下所示。
○...断裂伸长率20％以上
×...断裂伸长率末满20％
<II>蠕变特性
由各试验用材料制作试片，采用根据JIS-Z2272的拉伸蠕变断裂试验测定断裂寿命(小时)。
试片形状：平行部直径6mm，标点距离30mm
试验温度：800℃
拉伸应力：80MPa
<III>疲劳特性
对各试验用材料实施时效处理(800℃×1000小时)制作试片，采用根据JIS-Z 2273规定的下述疲劳试验测定破损重复数Nf(应力范围达到最大应力的75％之前的重复数)作为疲劳寿命进行评价。
表2中“疲劳特性”栏的符号如下所示。
○...重复数1000次以上
×...重复数未满1000次
试片形状：实心圆棒(直径10mm)
试验温度：800℃
总变形范围(εt)：±0.3％
变形速度：10-1％/秒(C-C型回复三角波)
标点距离(G.L.)：15mm
(IV)金属组织的观察
研磨时效处理(800℃×3000小时)后的试片，电解腐蚀(腐蚀液：10N氢氧化钾水溶液)后，通过显微镜现察检查有无σ相析出。
表1及表2的比较例(No.21-No.26)中，No.21是相当于SCH13(JIS-G5122)的材料，No.22是相当于SCH22(JIS-G5122)的材料，No.23是SCH13+Nb，No.24是SCH22+Nb，Ti，No.25是高含N材料，No.26是低含C的Ti奥氏体系钢。
发明例(No.1-No.12)即使经受高温长时间的时效，也没有σ相的析出，组织稳定性优良，时效后的断裂伸长及蠕变断裂寿命高，并且具有良好的疲劳特性，具备有希望作为制氢用改质器反应管材料，特别是重复热循环的负荷运转型装置的改质器反应管的各种特性。
另一方面，再看比较例(No.21-No.26)，No.21(SCH13)和No.22(SCH22)，时效后的断裂伸长及蠕变断裂寿命低，时效后的疲劳寿命也处于低水平。
No.23作为以SCH13为基础的添加Nb的效果，虽然看到时效后的蠕变断裂寿命略有改善，但时效后的断裂伸长及疲劳特性低。No.24作为以SCH22为基础的复合添加Nb及Ti的效果，虽然时效后的蠕变断裂寿命显著得到改善，但伴随着σ相的析出，时效后的延性及疲劳特性也降低，缺乏作为负荷变动型改质器反应管材料的适合性。
No.25作为高含N效果，基体的组织稳定性高，没有σ相的析出，但时效后的延性及蠕变断裂寿命低，疲劳特性也处于低水平。No.26虽然时效后的断裂伸长及疲劳特性良好，但由于参数值P脱离了本发明规定的上限值，故蠕变断裂强度低，缺乏水蒸气改质反应管的高温、高压用途的适合性。
表1
  No.                                                         化学组成(mass％)     其余部分Fe   备注
  C   Si   Mn   P   S   Cr   Ni   Nb   Ti   Ce   N   Zr   B   La   Al
  1   0.39   0.45   0.63   0.014   0.009   20.0   14.8   0.52   0.12   0.05   0.027   -   -   -   -   发明例
  2   0.30   0.35   0.57   0.015   0.009   16.0   10.3   0.30   0.10   0.03   0.030   -   -   -   -
  3   0.24   0.34   0.51   0.016   0.008   19.0   14.7   0.32   0.13   0.05   0.025   -   -   -   -
  4   0.13   0.32   0.45   0.014   0.007   18.6   14.5   0.28   0.15   0.06   0.022   -   -   -   -
  5   0.45   0.43   0.55   0.015   0.010   15.3   11.6   0.43   0.09   0.02   0.028   -   -   -   -
  6   0.21   0.54   0.47   0.016   0.007   18.9   22.4   1.18   0.07   0.07   0.059   -   -   -   -
  7   0.20   0.41   0.53   0.015   0.007   22.3   16.7   0.60   0.15   0.07   0.023   -   -   0.03   -
  8   0.18   1.84   2.04   0.015   0.009   15.3   21.8   0.27   0.16   0.05   0.027   -   -   -   -
  9   0.23   0.60   0.71   0.014   0.008   18.6   14.3   0.40   0.38   0.10   0.013   -   0.009   -   -
  10   0.22   0.37   0.51   0.016   0.007   19.7   14.7   0.37   0.11   0.01   0.045   0.12   -   -   -
  11   0.23   0.33   0.49   0.017   0.007   19.9   15.0   0.36   0.08   0.06   0.030   -   0.011   -   0.12
  12   0.30   0.56   0.70   0.016   0.009   24.9   16.5   0.61   0.78   0.02   0.015   -   -   -   -
  21   0.41   1.07   1.18   0.017   0.008   24.7   12.5   -   -   -   0.047   -   -   -   -   比较例
  22   0.42   0.98   1.21   0.015   0.007   24.8   19.7   -   -   -   0.061   -   -   -   -
  23   0.36   1.03   1.09   0.017   0.006   25.6   12.4   1.36   -   -   0.055   -   -   -   -
  24   0.40   0.99   1.05   0.015   0.009   25.1   21.2   0.48   0.09   -   0.033   -   -   -   -
  25   0.34   0.44   0.65   0.014   0.009   21.3   14.1   0.39   -   -   0.166   -   -   -   -
  26   0.04   0.38   0.52   0.015   0.010   19.7   13.0   -   0.21   -   0.027   -   -   -   -
表2
  No.    式[1]的参数值  时效后有无σ相析出*1   时效后的断裂延性*2     蠕变寿命(Hrs)*3  时效后的疲劳特性*4 备注
  1    20  ○   ○     3854  ○ 发明例
  2    34  ○   ○     2497  ○
  3    33  ○   ○     1680  ○
  4    43  ○   ○     1055  ○
  5    24  ○   ○     4337  ○
  6    35  ○   ○     1640  ○
  7    31  ○   ○     1708  ○
  8    36  ○   ○     1673  ○
  9    33  ○   ○     1561  ○
  10    35  ○   ○     1379  ○
  11    32  ○   ○     1472  ○
  12    25  ○   ○     3557  ○
  21    7  ×   ×     275  × 比较例
  22    5  ○   ×     323  ×
  23    12  ×   ×     3017  ×
  24    10  ×   ×     3017  ×
  25    18  ○   ×     534  ×
  26    50  ○   ○     4  ○
*1：时效处理：800℃×3000小时、○...无σ相析出、×...有σ相析出
*2：时效处理：800℃×3000小时、○...断裂伸长率≥20％、×...断裂伸长率＜20％
*3：蠕变试验...温度800℃、荷重80MPa
*4：时效处理：800℃×1000小时、○...疲劳寿命≥103次、×...疲劳寿命＜103次
工业实用性
本发明的耐热铸钢，高温长时间的时效后也具有高水平的延性、蠕变断裂寿命，同时具有得到改善的疲劳特性。因此，适合作为在高温加压条件下运转的石油炼制工厂中大型的制氢装置、燃料电池用制氢装置的水蒸气改质器反应管材料，由于疲劳特性特别优良，故适合作为如就地型制氢装置(氢站等)那样，伴随有白天与夜间的运转负荷的变动导致的重复热循环的负荷变动型燃料电池用制氢装置的反应管材料，缓解消除了随着重复热循环产生裂纹的问题，可长期稳定运转。
本发明的耐热铸钢由于减少了高价的Ni量，故在成本上也有利。反应管为离心铸造制造，在经济上也比采用塑性加工方式的制管加工有利，是实用价值优良的材料。另外，本发明的耐热铸钢也适合作为钢铁制造中的热处理用炉辊。

Claims (5)

1.时效延性及蠕变断裂强度等优良的制氢反应管用耐热铸钢，其特征在于，按质量％计，含有C：0.1～0.5％、Si：2.5％以下、Mn：2.5％以下、Cr：15～26％、Ni：8～23％、Nb：0.1～1.2％、Ti：0.01～1.0％、Ce：0.001～0.15％、N：0.06％以下，其余实质上为Fe，用下式表示的参数值P是20～45。
P＝89.3-78.4C+0.1Si-5.7Mn-1.7Cr+0.01Ni+2Nb+5.3Ti-36.5N-50.8Ce
2.权利要求1所述的制氢反应管用耐热铸钢，其中还含有选自B：0.001～0.05％、Zr：0.01～0.5％、La：0.001～0.15％的1种乃至2种以上。
3.权利要求1或2所述的制氢反应管用耐热铸钢，其中还含有Al：0.01～0.3％。
4.权利要求1～3的任何一项所述的制氢反应管用耐热铸钢，其中C：0.1～0.3％。
5.权利要求1～4的任何一项所述的制氢反应管用耐热铸钢，其中Cr：15～20％、Ni：8～18％。
CNB2004800307832A 2003-10-20 2004-10-18 时效延性及蠕变断裂强度优良的制氢反应管用耐热铸钢 Expired - Fee Related CN100564566C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP359203/2003 2003-10-20
JP2003359203 2003-10-20

Publications (2)

Publication Number Publication Date
CN1871368A true CN1871368A (zh) 2006-11-29
CN100564566C CN100564566C (zh) 2009-12-02

Family

ID=34463329

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004800307832A Expired - Fee Related CN100564566C (zh) 2003-10-20 2004-10-18 时效延性及蠕变断裂强度优良的制氢反应管用耐热铸钢

Country Status (9)

Country Link
US (1) US7442265B2 (zh)
EP (1) EP1679387B1 (zh)
JP (1) JP4632954B2 (zh)
KR (1) KR101190997B1 (zh)
CN (1) CN100564566C (zh)
CA (1) CA2540315C (zh)
ES (1) ES2395726T3 (zh)
HK (1) HK1097577A1 (zh)
WO (1) WO2005038066A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101368249B (zh) * 2007-08-17 2010-08-11 宝山钢铁股份有限公司 一种锅炉用钢及其制造方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5128823B2 (ja) * 2006-12-28 2013-01-23 株式会社東芝 ガス改質器
KR101018211B1 (ko) 2008-08-13 2011-02-28 주식회사 포스코 고온특성이 우수한 복사관 및 그 제조방법
DE102009024785B4 (de) * 2009-11-06 2013-07-04 Daimler Ag Stahlgusslegierungen und daraus gefertigtes Stahlgussbauteil sowie Verfahren zur Herstellung desselben
JP5143960B1 (ja) * 2011-05-11 2013-02-13 株式会社神戸製鋼所 高温強度と耐繰返し酸化特性に優れた耐熱オーステナイト系ステンレス鋼
JP5296186B2 (ja) * 2011-12-27 2013-09-25 株式会社神戸製鋼所 耐スケール剥離性に優れた耐熱オーステナイト系ステンレス鋼およびステンレス鋼管
EP2829628B1 (en) 2012-03-23 2020-03-04 Kubota Corporation Cast product having alumina barrier layer, and method for manufacturing same
CN103409697B (zh) * 2013-07-30 2016-01-20 青岛新力通工业有限责任公司 新型耐铝、锌腐蚀镍铬合金及采用该合金生产炉辊的方法
US20170130301A1 (en) * 2014-07-10 2017-05-11 Doncasters Paralloy Low ductility alloy
US10815555B2 (en) 2014-10-03 2020-10-27 Hitachi Metals, Ltd. Heat-resistant, austenitic cast steel having excellent thermal fatigue properties, and exhaust member made thereof
FR3027032B1 (fr) * 2014-10-08 2021-06-18 Air Liquide Microstructure d'un alliage pour tube de reformage
JP6250895B2 (ja) 2015-06-04 2017-12-20 トヨタ自動車株式会社 オーステナイト系耐熱鋳鋼
JP6848519B2 (ja) * 2017-02-23 2021-03-24 愛知製鋼株式会社 高圧水素用オーステナイト系ステンレス鋼

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658516A (en) * 1969-09-05 1972-04-25 Hitachi Ltd Austenitic cast steel of high strength and excellent ductility at high temperatures
JPS514015A (en) * 1974-06-25 1976-01-13 Nippon Steel Corp Netsukankakoseino sugureta tainetsuseioosutenaitosutenresuko
GB2047269A (en) * 1979-04-19 1980-11-26 Sheepbridge Alloy Castings Ltd Heat Resisting Alloy
JPS5698455A (en) * 1980-01-10 1981-08-07 Kubota Ltd Ion-based heat-resisting cast alloy
JP3422803B2 (ja) * 1992-02-28 2003-06-30 株式会社東芝 Ｃｒ−Ｎｉ系耐熱鋼
EP0613960B1 (en) * 1993-02-03 1997-07-02 Hitachi Metals, Ltd. Heat-resistant, austenitic cast steel and exhaust equipment member made thereof
CN1031003C (zh) * 1994-03-23 1996-02-14 冶金工业部钢铁研究总院 奥氏体耐热钢
JPH09165655A (ja) * 1995-12-14 1997-06-24 Nkk Corp 高温機器用オーステナイトステンレス鋼およびその製造方法
JP4233628B2 (ja) * 1998-03-31 2009-03-04 新日鐵住金ステンレス株式会社 耐スケール剥離性に優れた水素発生器用オーステナイト系ステンレス鋼
JP2002173742A (ja) * 2000-12-04 2002-06-21 Nisshin Steel Co Ltd 形状平坦度に優れた高強度オーステナイト系ステンレス鋼帯およびその製造方法
JP3632672B2 (ja) * 2002-03-08 2005-03-23 住友金属工業株式会社 耐水蒸気酸化性に優れたオーステナイト系ステンレス鋼管およびその製造方法
JP2003286005A (ja) 2002-03-28 2003-10-07 Nisshin Steel Co Ltd 燃料改質器
US7258752B2 (en) * 2003-03-26 2007-08-21 Ut-Battelle Llc Wrought stainless steel compositions having engineered microstructures for improved heat resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101368249B (zh) * 2007-08-17 2010-08-11 宝山钢铁股份有限公司 一种锅炉用钢及其制造方法

Also Published As

Publication number Publication date
KR101190997B1 (ko) 2012-10-16
JPWO2005038066A1 (ja) 2007-11-22
EP1679387A1 (en) 2006-07-12
EP1679387A4 (en) 2009-12-23
CN100564566C (zh) 2009-12-02
US7442265B2 (en) 2008-10-28
EP1679387B1 (en) 2012-10-17
ES2395726T3 (es) 2013-02-14
KR20060089236A (ko) 2006-08-08
CA2540315C (en) 2011-07-19
WO2005038066A1 (ja) 2005-04-28
HK1097577A1 (en) 2007-06-29
JP4632954B2 (ja) 2011-02-16
US20070034302A1 (en) 2007-02-15
CA2540315A1 (en) 2005-04-28

Similar Documents

Publication Publication Date Title
CN1293223C (zh) 超奥氏体不锈钢
JP5146576B1 (ja) Ｎｉ基耐熱合金
CN1833043A (zh) 氢气用奥氏体不锈钢及其制造方法
KR101651345B1 (ko) Ni기 합금
CN1871368A (zh) 时效延性及蠕变断裂强度优良的制氢反应管用耐热铸钢
CN1993488A (zh) 焊接接头及其焊接材料
CN1451778A (zh) 高温强度和耐蚀性优异的奥氏体不锈钢及其的耐热耐压部件与制法
CN1942596A (zh) 奥氏体不锈钢、其制造方法以及使用其的结构件
CN101506399A (zh) 高温强度提高的耐热耐腐蚀铸造奥氏体不锈钢合金
WO2013073423A1 (ja) 継目無オーステナイト系耐熱合金管
CN1969053A (zh) 抗硫化物应力腐蚀裂纹性优异的低合金油井管用钢
CN1842610A (zh) 抗金属灰化产品
EP2623623B1 (en) Heat-resistant ferritic cast steel having excellent melt flowability, freedom from gas defect, toughness, and machinability, and exhaust system component comprising same
CN1768156A (zh) 用在海水应用中的双相不锈钢合金
CN102199739A (zh) 用于排气阀的耐热钢
RU2424347C2 (ru) ЖАРОПРОЧНЫЙ СПЛАВ, РАССЧИТАННЫЙ НА ОБРАЗОВАНИЕ МЕЛКОДИСПЕРСНЫХ ВЫДЕЛЕНИЙ КАРБИДА Ti-Nb-Cr ИЛИ КАРБИДА Ti-Nb-Zr-Cr
JP2011208269A (ja) 耐水素脆性に優れた高強度加工用ステンレス材料及びそのステンレス鋼線、並びにステンレス鋼成形品
CN102690997A (zh) 具有优良的高温强度的铁素体不锈钢及其制造方法
CN111394663A (zh) 耐热铁基合金及其制备方法
JP2011127204A (ja) 耐水素脆性高強度オーステナイト系合金
JP2003286005A (ja) 燃料改質器
JP5696271B2 (ja) 高温強度特性に優れるオーステナイト系高純度鉄合金
JP3977847B2 (ja) エンジンバルブ用耐熱合金
CN87102645A (zh) 奥氏体镍-铬-铁合金结构零件的改进
WO2023058358A1 (ja) フェライト系ステンレス鋼管及びその製造方法、並びに燃料電池

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1097577

Country of ref document: HK

C14 Grant of patent or utility model
GR01 Patent grant
REG Reference to a national code

Ref country code: HK

Ref legal event code: GR

Ref document number: 1097577

Country of ref document: HK

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091202

Termination date: 20201018

CF01 Termination of patent right due to non-payment of annual fee