CN107287501A - 一种抗氢致裂纹和硫化物腐蚀钢板及其生产方法 - Google Patents
一种抗氢致裂纹和硫化物腐蚀钢板及其生产方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 12
- 239000001257 hydrogen Substances 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000005260 corrosion Methods 0.000 title claims description 11
- 230000007797 corrosion Effects 0.000 title claims description 11
- 238000005336 cracking Methods 0.000 title claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title abstract 2
- 238000005096 rolling process Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 238000010583 slow cooling Methods 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
Classifications
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- 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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
本发明提供一种抗氢致裂纹和硫化物腐蚀钢板及其生产方法,化学成分为:C 0.150~0.180、Si 0.20~0.30%、Mn 1.10~1.20%、P≤0.007%、S≤0.002%、Nb 0.010~0.020%、V 0.030~0.050%、Ti0.007~0.020%、Alt 0.025~0.045%、Ca≤0.003%。钢坯出炉后进行高压水除鳞,开轧温度≥1000℃,根据不同的成品钢板厚度和宽度,采用不同的轧制方式和工艺参数。厚度14~50mm钢板,采用ACC冷却方式,冷却速率4~10℃/s;厚度≥35mm钢板,堆垛缓冷温度>300℃,时间≥16小时;正火温度880±10℃,升温速率0.9~1.0min/mm,净保温时间为0.5min/mm。本发明钢板屈服强度值≥260MPa,抗拉强度≥485MPa,延伸率≥17%,冲击功≥27J,硬度≤22,HIC性能检验合格,性能合格率100%。
Description
技术领域
本发明属于钢铁冶金技术领域,特别涉及一种一种抗氢致裂纹和硫化物腐蚀钢板及其生产方法。
背景技术
随着国内容器用钢的发展,简单的容器用钢已经不能满足用户需求,特殊容器用钢成为开拓市场、赢得利润的利器。抗氢致裂纹和硫化物应力腐蚀钢板,具有抗HIC的特点,是满足用户需求,打开容器用钢市场的重要产品,因此,开发抗氢致裂纹和硫化物腐蚀钢板既可为企业提供新的利润增长点,也是一个亟待解决的重要课题。
发明内容
本发明旨在提供一种具有良好的抗氢致裂纹和硫化物腐蚀性能的钢板及其生产方法。
为此,本发明所采取的技术解决方案:
一种抗氢致裂纹和硫化物腐蚀钢板,其化学成分重量百分比为:C:0.150~0.180、Si:0.20~0.30%、Mn:1.10~1.20%、P≤0.007%、S≤0.002%、Nb:0.010~0.020%、V:0.030~0.050%、Ti0.007~0.020%、Alt:0.025~0.045%、Ca≤0.003%,余为Fe和杂质。
其中:[N]≤40ppm、[H]≤1.5ppm、[0]≤15ppm;
Cr+Ni+Cu≤0.60%;
Nb+V+Ti≤0.10%;
Ceq=C+Mn/6+(Cu+Ni)/15+(Cr+Mo+V)/5=0.34~0.40
Ca/S>1.2。
一种抗氢致裂纹和硫化物腐蚀钢板的生产方法,其具体方法为:
(1)轧制工艺:钢坯从加热炉出炉后进行高压水除鳞,开轧温度≥1000℃,根据不同的成品钢板厚度和宽度,采用不同的轧制方式和工艺参数:
成品厚度<12mm的钢板,采用普通轧制方式;成品厚度≥12mm的钢板,采用两阶段控制轧制;其具体工艺参数为:
(2)控制冷却工艺:成品厚度在14~50mm的钢板,采用ACC冷却方式,开冷温度为800~770℃,返红温度600~550℃,冷却速率4~10℃/s;
(3)缓冷工艺:厚度≥35mm钢板,轧后采用堆垛缓冷,堆垛温度>300℃,缓冷时间≥16小时;
(4)热处理工艺:正火温度880±10℃,升温速率0.9~1.0min/mm,按钢板厚度计的净保温时间为0.5min/mm,但净保温总时间不得少于10min。
本发明的有益效果为:
采用本发明批量试制的抗氢致裂纹和硫化物应力腐蚀钢板,各项性能指标均达到理想要求,其力学性能为:屈服强度值≥260MPa,抗拉强度485~620MPa,延伸率≥17%,冲击功≥27J,硬度≤22,HIC性能检验合格,性能合格率100%。
具体实施方式
实施例1:轧制成品钢板厚度35mm、宽度2500mm。
化学成分重量百分比为:C 0.180%、Si 0.25%、Mn 1.19%、P 0.005%、S 0.002%、Nb 0.013%、V 0.039%、Ti 0.015%、Alt 0.039%、Ca 0.003%,余为Fe和杂质。
轧制生产工艺流程为:板坯加热—轧制—矫直—堆垛缓冷—热处理—切边—检查、检验—入库。
轧制工艺:钢坯从加热炉出炉后进行高压水除鳞。采用普通轧制方式,开轧温度1100℃,终轧温度950℃。
控制冷却工艺:采用ACC冷却方式,开冷温度为790℃,返红温度580℃,冷却速率6℃/s。
缓冷工艺:轧后采用堆垛缓冷,堆垛温度350℃,缓冷时间20小时。
热处理工艺:正火温度875℃,升温速率0.95min/mm,按钢板厚度计的净保温时间为0.5min/mm。
实施例2:轧制成品钢板厚度40mm、宽度4200mm。
化学成分重量百分比为:C 0.160%、Si 0.26%、Mn 1.17%、P 0.005%、S 0.002%、Nb 0.015%、V 0.040%、Ti 0.015%、Alt 0.030%、Ca 0.003%,余为Fe和杂质。
轧制生产工艺流程为:板坯加热—轧制—矫直—堆垛缓冷—热处理—切边—检查、检验—入库。
轧制工艺:钢坯从加热炉出炉后进行高压水除鳞。采用两阶段控制轧制:一阶段开轧温度1120℃;二阶段开轧温度950℃,二阶段终轧温度820℃,二阶段累计压下率67%。
控制冷却工艺:采用ACC冷却方式,开冷温度为800℃,返红温度590℃,冷却速率8℃/s。
缓冷工艺:轧后采用堆垛缓冷,堆垛温度380℃,缓冷时间24小时。
热处理工艺:正火温度885℃,升温速率1.0min/mm,按钢板厚度计的净保温时间为0.5min/mm。
Claims (2)
1.一种抗氢致裂纹和硫化物腐蚀钢板,其特征在于,其化学成分重量百分比为:C:0.150~0.180、Si:0.20~0.30%、Mn:1.10~1.20%、P≤0.007%、S≤0.002%、Nb:0.010~0.020%、V:0.030~0.050%、Ti0.007~0.020%、Alt:0.025~0.045%、Ca≤0.003%,余为Fe和杂质;
其中:[N]≤40ppm、[H]≤1.5ppm、[0]≤15ppm;
Cr+Ni+Cu≤0.60%;
Nb+V+Ti≤0.10%;
Ceq=C+Mn/6+(Cu+Ni)/15+(Cr+Mo+V)/5=0.34~0.40
Ca/S>1.2。
2.一种如权利要求1所述抗氢致裂纹和硫化物腐蚀钢板的生产方法,其特征在于:
(1)轧制工艺:钢坯从加热炉出炉后进行高压水除鳞,开轧温度≥1000℃,根据不同的成品钢板厚度和宽度,采用不同的轧制方式和工艺参数:
对成品厚度<12mm的钢板,采用普通轧制方式;对成品厚度≥12mm的钢板,采用两阶段控制轧制;其具体工艺参数为:
(2)控制冷却工艺:对成品厚度在14~50mm的钢板,采用ACC冷却方式,开冷温度为800~770℃,返红温度600~550℃,冷却速率4~10℃/s;
(3)缓冷工艺:厚度≥35mm钢板,轧后采用堆垛缓冷,堆垛温度>300℃,缓冷时间≥16小时;
(4)热处理工艺:正火温度880±10℃,升温速率0.9~1.0min/mm,按钢板厚度计的净保温时间为0.5min/mm,但净保温总时间不得少于10min。
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107779763A (zh) * | 2016-08-31 | 2018-03-09 | 鞍钢股份有限公司 | 一种抗hic压力容器用钢及其生产方法 |
CN108384939A (zh) * | 2018-02-07 | 2018-08-10 | 舞阳钢铁有限责任公司 | 一种正火钢板的生产工艺 |
CN109930062A (zh) * | 2018-11-09 | 2019-06-25 | 鞍钢股份有限公司 | 一种改善特厚正火船板钢拉伸性能的方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102011050A (zh) * | 2010-07-15 | 2011-04-13 | 秦皇岛首秦金属材料有限公司 | 一种36kg级海洋平台用钢及其生产方法 |
CN105074036A (zh) * | 2013-03-29 | 2015-11-18 | 株式会社神户制钢所 | 抗氢致裂纹性和焊接热影响部的韧性优异的钢板和管线钢管 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102011050A (zh) * | 2010-07-15 | 2011-04-13 | 秦皇岛首秦金属材料有限公司 | 一种36kg级海洋平台用钢及其生产方法 |
CN105074036A (zh) * | 2013-03-29 | 2015-11-18 | 株式会社神户制钢所 | 抗氢致裂纹性和焊接热影响部的韧性优异的钢板和管线钢管 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107779763A (zh) * | 2016-08-31 | 2018-03-09 | 鞍钢股份有限公司 | 一种抗hic压力容器用钢及其生产方法 |
CN108384939A (zh) * | 2018-02-07 | 2018-08-10 | 舞阳钢铁有限责任公司 | 一种正火钢板的生产工艺 |
CN109930062A (zh) * | 2018-11-09 | 2019-06-25 | 鞍钢股份有限公司 | 一种改善特厚正火船板钢拉伸性能的方法 |
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