TW200909593A - Chromium-manganese-nitrogen austenite series stainless steel - Google Patents

Chromium-manganese-nitrogen austenite series stainless steel Download PDF

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TW200909593A
TW200909593A TW096132137A TW96132137A TW200909593A TW 200909593 A TW200909593 A TW 200909593A TW 096132137 A TW096132137 A TW 096132137A TW 96132137 A TW96132137 A TW 96132137A TW 200909593 A TW200909593 A TW 200909593A
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weight percentage
weight
nitrogen
manganese
chromium
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TW096132137A
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Chinese (zh)
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Wei-Ming Liu
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Advanced Int Multitech Co Ltd
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Priority to TW096132137A priority Critical patent/TW200909593A/en
Priority to JP2007249166A priority patent/JP4653149B2/en
Priority to US11/905,922 priority patent/US20090060775A1/en
Publication of TW200909593A publication Critical patent/TW200909593A/en
Priority to US12/727,136 priority patent/US20100189589A1/en

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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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The present invention discloses a chromium-manganese-nitrogen austenite series stainless steel. Expensive nickel is replaced with proper amount of manganese (Mn) and nitrogen (N) to make a chromium-manganese-nitrogen (Cr-Mn-N) new steel to reduce material cost and to remain the original physical performance and mechanical dynamic performance. Its weight percentage of composition element includes about 0.005 to 0.08 percent by weight of carbon element, about 0.3 to 0.9 percent by weight of silicon element, about 12.1 to 14.8 percent by weight of manganese element, about 0.001 to 0.04 percent by weight of phosphorous element, about 0.001 to 0.03 percent by weight of sulfur element, about 16 to 19 percent by weight of chromium element, about 0.5 to 1.8 percent by weight of nickel element, about 0.2 to 0.45 percent by weight of nitrogen element, about 0.001 to 0.3 percent by weight of molybdenum element, about 0.001 to 0.3 copper element, and unavoidable trace elements during the manufacturing process.

Description

200909593 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種沃斯田鐵系不銹鋼，特別是有關 於一種以猛元素、氮元素替代錄元素的沃斯田鐵系不錄鋼。 【先前技術】 一般常見不銹鋼因表面有著吸引人的白色光澤，且不 易生錄，因此，廣受消費大眾喜歡，並大量被應用，例如： 不銹鋼廚具、水塔、機械零件、運動用品、航太材料、醫 療用材到3C產業等。不銹鋼的種類繁多，其中使用最廣泛 且最大量的不錄鋼之一，即是304不銹鋼，其標準成分是 18%鉻加8%鎳，即一般所稱的18-8不銹鋼。此類不銹鋼的 特性為機械性質佳、無磁性、無法藉由熱處理方法來改變 其金相組織結構、耐久性、加工性佳，又因其含較高的鎳 元素，所以抗钱性優。然而，由於全球因戰爭導致錄元性 短缺，導致304不銹鋼價格居高不下，因此，對於前述鉻 鎳系不銹鋼降低其鎳成份，並利用其成份的組配來維持甚 致提高其固有機械特性及抗銹蝕性，以節約鎳資源、降低 物料成本實為一重要課題。 【發明内容】 有鑑於此，本發明所欲解決的問題在於提供一種低鎳 之單一沃斯田鐵系組織，且其在海洋大氣與酸性大氣中的 耐蝕性、強度、延伸率與304不銹鋼材質保持同一水平或 更佳與304鋼性能相近之鋼種。 5 200909593 為解決上述問題，本發明所提出之技術手段係在於以 適量I孟（Μη)、氮（N)替代昂貴的錄，製成鉻-猛-氮（Cr-Mn-N) 新鋼種，以提供一種鉻猛氮沃斯田鐵系不錄鋼，其包括： 重量百分比介於0. 005%〜0. 08%之碳元素；重量百分比介於 0. 3%〜0. 9%矽元素；重量百分比介於12. 1%~14. 8%錳元素； 重量百分比介於0.001%〜0.04%磷元素；重量百分比介於 0.001%〜0.03%硫元素；重量百分比介於16%〜19%鉻元素； 重量百分比介於0.5%-1. 8%鎳元素；重量百分比介於 0. 2%〜0. 45%氮元素；重量百分比介於0. 001%〜0. 3%鉬元素； 重量百分比介於0.001%〜0.3%銅元素；以及多數製造過程 中不可避免的微量元素。 運用本發明所獲得的功效係在於：本發明根據沃斯田 鐵系（或稱奥氏體）鋼形成機理，以適量錳，氮替代昂貴的 鎳之鉻-錳-氮新鋼種，係為單一沃斯田鐵系組織，同時其 在海洋大氣與酸性大氣中的对#性、強度、延伸率與3 0 4 不銹鋼材質保持同一水平或更佳，以達到降低物料成本之 目的。本發明應用錳及氮代替鎳的方法，做成了純沃斯田 鐵型不鏽鋼無磁性，機械性能UTS比304不銹鋼高近 200MPa，Y. S高出近一倍，延伸率達50%，耐腐蝕性能相當， 最重要的是，其單價不到304不銹鋼的一半。其具有優良 流動性，優秀的鑄造成形性能，以及良好之高溫抗氧化性 能之特性。 【實施方式】 200909593 茲配合圖式將本發明較佳實施例詳細說明如下 本务明鉻ί孟氣主要金相組織為沃斯田鐵牵 π « 巧尔不讀鋼，係 可用電弧爐或真空感應爐熔煉。其元素重量百分比勺人、 碳元素0. 005%~0. 08% ;矽元素〇· 3%〜〇. 9% ;素 12. 1%〜14. 8% ;磷元素0.001%〜0.04%丨碳元素 0.001%〜0.03%;鉻元素16%〜19%;鎳元素·⑽；71氮元 素〇· 2%〜0. 45% ;鉬元素〇. 〇〇1%〜〇· 3%鉬元素；銅元素 M)〇l%〜0· 3% ;及製造過程中不可避免的微量元素。 上述各成份組成之計算公式為：200909593 IX. OBJECTS OF THE INVENTION: TECHNICAL FIELD The present invention relates to a Worthfield iron-based stainless steel, and more particularly to a Worthfield iron-based steel which is replaced by a violent element or a nitrogen element. [Prior Art] Generally, stainless steel has an attractive white luster on the surface and is not easy to record. Therefore, it is widely used by consumers and is widely used, for example: stainless steel kitchen utensils, water towers, mechanical parts, sporting goods, aerospace materials. , medical materials to the 3C industry. There is a wide variety of stainless steels, one of which is the most widely used and the largest amount of unrecorded steel, namely 304 stainless steel. Its standard composition is 18% chromium plus 8% nickel, which is commonly known as 18-8 stainless steel. The characteristics of this type of stainless steel are excellent in mechanical properties, non-magnetic, and it is impossible to change its metallographic structure, durability, and processability by heat treatment, and it is excellent in resistance to money due to its high nickel content. However, due to the global shortage of records due to war, the price of 304 stainless steel is high. Therefore, the above-mentioned chrome-nickel stainless steel reduces its nickel content and uses its composition to maintain its inherent mechanical properties. Corrosion resistance is an important issue to save nickel resources and reduce material costs. SUMMARY OF THE INVENTION In view of the above, the problem to be solved by the present invention is to provide a single low-nickel iron structure of nickel, and its corrosion resistance, strength, elongation in the marine atmosphere and acidic atmosphere and 304 stainless steel material. Maintain the same level or better steel grades with similar properties to 304 steel. 5 200909593 In order to solve the above problems, the technical means proposed by the present invention is to replace the expensive recording with an appropriate amount of I Meng (Μη) and nitrogen (N) to prepare a new chromium-nitrogen-nitrogen (Cr-Mn-N) steel. 3%矽0。 3%矽0。 3% 0 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽 矽The weight percentage is between 12.1% and 14.8% manganese; the weight percentage is between 0.001% and 0.04% phosphorus; the weight percentage is between 0.001% and 0.03% sulfur; the weight percentage is between 16% and 19%. 3%的含量为重量。 3% by weight of 5% by weight of 5% by weight; The percentage is between 0.001% and 0.3% copper; and the trace elements that are inevitable in most manufacturing processes. The utility obtained by using the invention is that the invention replaces the expensive nickel-chromium-manganese-nitrogen new steel with an appropriate amount of manganese and nitrogen according to the formation mechanism of the Worthite iron (or austenitic) steel. The Worth Iron Group, at the same time, maintains the same level or better in terms of the strength, strength and elongation of the marine atmosphere and the acidic atmosphere to achieve the goal of reducing material costs. The invention adopts the method of replacing manganese with manganese and nitrogen, and is made of pure Worthfield iron type stainless steel non-magnetic, mechanical property UTS is nearly 200 MPa higher than 304 stainless steel, Y. S is nearly doubled, elongation is 50%, resistant Corrosion performance is equivalent, the most important is that its unit price is less than half of 304 stainless steel. It has excellent fluidity, excellent casting formability, and good high temperature oxidation resistance. [Embodiment] 200909593 A preferred embodiment of the present invention will be described in detail with reference to the following drawings. The main metallographic structure of the chrome ί ί 为 为 沃 沃 « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « « Induction furnace melting. The element weight percentage of the scoop, carbon element 0. 005%~0. 08%; 矽 element 〇 · 3% ~ 〇. 9%; prime 12. 1% ~ 14. 8%; phosphorus element 0.001% ~ 0.04% 丨Carbon element 0.001%~0.03%; chromium element 16%~19%; nickel element · (10); 71 nitrogen element 〇 · 2% ~ 0. 45%; molybdenum element 〇. 〇〇 1% ~ 〇 · 3% molybdenum element; The copper element M) 〇l%~0· 3%; and the inevitable trace elements in the manufacturing process. The formula for calculating the above composition is:

Ni (鎳）當置=斷（鎳）+30*%C(碳)+〇· 5*%Mn(猛)+ 30獅（氮）Ni (nickel) when set = broken (nickel) + 30 * % C (carbon) + 〇 · 5 * % Mn (miao) + 30 lion (nitrogen)

Cr(絡）當罝=%Cr(鉻）+%Mo(钥）+1. 5*%Si (碎）+0· 5*% Cb(斜） 再查對如圖1之相圖，縱坐標為Ni當量，而橫坐標為 Cr當1 ’反异后該點若在沃斯田鐵區（Austenite區），即 符合我們的要求如表1所示： 表1 、成分 %c %Si %Μη %Ρ %S %Cr %Ni %N % Mo %Cu 質量百 、分數 0.002-0.08 υ.3~ 0.9 12.1- 14.8 <0.04 <0.03 16~1 9 0.5~1.3 0.2-0.45 <0.3 <0.3 、上限 0.002 0.3 12.1 16 0.5 0.1 0 〜JF限 0.08 0.9 14.8 19 1.3 0.45 0.3Cr (network) when 罝 = % Cr (chromium) + % Mo (key) + 1. 5 * % Si (broken) + 0 · 5 * % Cb (oblique) and then check the phase diagram as shown in Figure 1, the ordinate Ni is the equivalent, and the abscissa is Cr. When 1' is opposite, the point is in the Worthite area (Austenite area), which meets our requirements as shown in Table 1: Table 1, composition %c %Si %Μη %Ρ %S %Cr %Ni %N % Mo %Cu mass, fraction 0.002-0.08 υ.3~ 0.9 12.1- 14.8 <0.04 <0.03 16~1 9 0.5~1.3 0.2-0.45 <0.3 < 0.3, upper limit 0.002 0.3 12.1 16 0.5 0.1 0 ~ JF limit 0.08 0.9 14.8 19 1.3 0.45 0.3

Ni 當量下限=0. 5+30*0. 002+0. 5*12. 1+30*0. 2=12· 61 Ni 當量上限=1. 3+30*0. 08+0. 5*14. 8+30*0. 45=24. 6 Cr 當量下限二16+0+1· 5*0· 3+0. 5*0=16. 45 Cr 當量上限= 19+0. 3+1. 5*0. 9+0. 5*0=20. 65 圖1中之斜線區域主要成份為沃斯田鐵。 試樣分析成份如表2: 200909593 成分％ 質量百 分數 表2 碳)’ 0.0079 ，(矽） %Mn(錳） %P(磷） %S (硫） %Cr(鉻） %Ni(鎳） %N(氮） 0.65 ----- 12.27 17.06 1.68 0.42Lower limit of Ni equivalent = 0.5+30*0. 002+0. 5*12. 1+30*0. 2=12· 61 Ni equivalent upper limit=1. 3+30*0. 08+0. 5*14 8+30*0. 45=24. 6 Cr equivalent lower limit two 16+0+1·5*0·3+0. 5*0=16. 45 Cr equivalent upper limit = 19+0. 3+1. 5 *0. 9+0. 5*0=20. 65 The main component of the slash area in Figure 1 is Worth Iron. The analytical composition of the sample is shown in Table 2: 200909593 Ingredient % Mass percentage Table 2 Carbon) ' 0.0079 , (矽) % Mn (manganese) % P (phosphorus) % S (sulfur) % Cr (chromium) % Ni (nickel) % N (nitrogen) 0.65 ----- 12.27 17.06 1.68 0.42

-γκ-1. oorou^u. υυ/atu. D^iZ. Zi+^U^U. 4Z=ZU. bOZ 以田里下限= 17. 06+0+1· 5*0. 65+0. 5*0=18. 035 再查對圖1之相圖，該點落在沃斯田鐵區 們的要求。 丨彳了口双 以下：月i要係利祕、氮元素來部分或全部取代鋅， 以下祕凡素與氮元素的特性作—解析： 代鏢 猛兀素對組織結構的影響有： a. 猛若作為脫氧元素，含量須g 2%。 b. 錳若作為合金元素，含量可達2⑽。 c. 以錳代鎳，可增加氮的溶 ° 強度的作用。 & ’達到節省鎳和提高 錳元素對力學性能的影響有： a.錳$2%時，對硬度無影變 服強度 度。 s但會降低抗拉強度和屈 b·改善高Ni_Cr r s. s的 錳元素對耐蝕性的影響有：紙尤、塑个 錳硫夾雜物弓丨起耐點！虫和縫隙腐餘 氮對組織結構的影響有： 匕下降 a. 氮強烈地形成並擴大γ相 、， b. 可抑製碳化物析出和延緩、加r的穩定性。 晶間腐#和鋼的執性產生有利影^。目析出’對鋼的耐敏化 8 200909593 氮對力學性能的影響有： a. 通過固’合強化（形成間隙固溶體）可顯著提升鋼的強 度，同時槊性與韌性有所下降。 b. 氮過高（go· 84%)，會出現塑性向脆性轉變。 依據圖1之Ni-Cr當量圖雪夫勤圖（Schaeffler圖）， 在γ不鏽鋼中，鐘、氮可部分或全部代鎳，在不改變鋼的 組織下，而強度提升、延伸率保持與304不銹鋼相當。 而在冶鍊過程中爐内鐵水易產生碟、硫等有害元素成 份，磷須控製在〇.〇4以下’硫須控製在〇. 〇4以下。 本發明實施例及對比材料之元素成份如下表3 : 表3 試樣 元素成 分含量％ 成份 C(石炭) Si(矽) Μ η (锰) Ρ(麟) S(疏) Cr(鉻) Ni(鎳) N(氮) M〇(鉬) Cu(銅) 304不銹 鋼 (¾材 <0.08 <1.0 <2.0 <0.045 <0.03 17-19 8~1〇 / <0.6 1 實施例 1 0.0642 0.69 12.43 0.031 0.012 16.87 1.21 0.59 0.026 0.106 實施例 2 0.0547 0.81 13.92 0.01 0.001 16.71 0.82 0.24 0.025 0.104 實施例 3 0.0432 0.85 ---- 12.12 0.012 0.005 16.38 0.09 0.35 0.027 0.109 上述表3之實施例中，其力學性能如下表4 9 200909593 表4 試樣 力學性能 硬度 密度 鹽霧測試 Ob σ5 δ Ρ Mpa Mpa % HRB ΗΒ kg/cm3 36H 48H 304不銹鋼 (對比材料） 520 206 40 〜50 ^90 ^187 7.85 不鐘 不鐵 實施例1 700 400 40 〜50 86 〜92 $187 7.77 不鐘 不鏽 實施例2 751 425.9 51.5 89 180 7.76 不鑛 不鐵 實施例3 706.4 426.7 47.6 88 175 7.77 不鏽 不鏽 參照圖2A至圖2B之不同部位之顯微金相圖片所示， 經顯微金相觀察，圖2A、圖2B係未經熱處理前，其組織 為T，故，本鋼為全T體不鏽鋼。 綜上所述，乃僅記載本發明為呈現解決問題所採用的 技術手段之較佳實施方式或實施例而已，並非用來限定本 發明專利實施之範圍。即凡與本發明專利申請範圍文義相 符，或依本發明專利範圍所做的均等變化與修飾，皆為本 發明專利範圍所涵蓋。 【圖式簡單說明】 圖1係本發明鉻猛氮沃斯田鐵系不錄鋼實施例之Ni -Cr當 量圖之雪夫勤圖；以及 圖2A、圖2B係本發明鉻錳氮沃斯田鐵系不銹鋼實施例之 不同部位之顯微金相圖片。 【主要元件符號說明】 10-γκ-1. oorou^u. υυ/atu. D^iZ. Zi+^U^U. 4Z=ZU. bOZ to the lower limit of the field = 17. 06+0+1· 5*0. 65+0. 5 *0=18. 035 Then check the phase diagram of Figure 1, which falls on the requirements of the Worthfield Iron District.丨彳 口 双 : : : : : : : : : : : : : : : : 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月 月As a deoxidizing element, the content must be 2%. b. If manganese is used as an alloying element, the content can reach 2 (10). c. With manganese-nickel, it can increase the solubility of nitrogen. & 'To achieve nickel savings and improve the mechanical properties of manganese: a. Manganese $ 2%, no change in hardness. s but will reduce the tensile strength and flexion b. Improve the high Ni_Cr r s. s The influence of manganese on the corrosion resistance is: paper, plastic, manganese and sulfur inclusions bow up the resistance point! The effects of insects and crevices on the microstructure are: 匕 Decrease a. Nitrogen strongly forms and enlarges the γ phase, b. It can inhibit the precipitation and retardation of carbides and the stability of r. Intergranular rot # and steel's obstinacy produce a favorable image ^. The effect of nitrogen on the sensitization of steel 8 200909593 The effect of nitrogen on the mechanical properties is: a. The strength of the steel can be significantly improved by solid-solid strengthening (forming a gap solid solution), while the enthalpy and toughness are reduced. b. Nitrogen is too high (go·84%), and plastic to brittle transition occurs. According to the Ni-Cr equivalent Schwarfler diagram of Fig. 1, in γ stainless steel, the bell and nitrogen can partially or completely replace nickel, and the strength is increased, the elongation is maintained with 304 stainless steel without changing the microstructure of the steel. quite. In the process of metallurgy, the molten iron in the furnace is prone to produce harmful elements such as dishes and sulfur, and the phosphorus must be controlled below 〇.〇4. The sulfur must be controlled below 〇. 〇4. The elemental compositions of the examples and comparative materials of the present invention are as follows: Table 3: Sample Element Content Component % Component C (Carbon) Si (矽) Μ η (Manganese) Ρ (Lin) S (Sparse) Cr (Chromium) Ni ( Nickel) N (nitrogen) M 〇 (molybdenum) Cu (copper) 304 stainless steel (3⁄4 material < 0.08 < 1.0 < 2.0 < 0.045 < 0.03 17-19 8 -1 〇 / < 0.6 1 Example 1 0.0642 0.69 12.43 0.031 0.012 16.87 1.21 0.59 0.026 0.106 Example 2 0.0547 0.81 13.92 0.01 0.001 16.71 0.82 0.24 0.025 0.104 Example 3 0.0432 0.85 ---- 12.12 0.012 0.005 16.38 0.09 0.35 0.027 0.109 In the examples of Table 3 above, the mechanics The properties are as follows: Table 4 9 200909593 Table 4 Mechanical properties of the test specimens Hardness density Salt spray test Ob σ5 δ Ρ Mpa Mpa % HRB ΗΒ kg/cm3 36H 48H 304 stainless steel (comparative material) 520 206 40 〜50 ^90 ^187 7.85 No Iron Example 1 700 400 40 〜 50 86 ～ 92 $187 7.77 No rust Example 2 751 425.9 51.5 89 180 7.76 Non-mineral iron Example 3 706.4 426.7 47.6 88 175 7.77 Stainless stainless reference Figure 2A to Figure 2B As shown in the microscopic metallographic picture of different parts, observed by microscopic metallography 2A and 2B are T before the heat treatment, so the present steel is a full T-stainless steel. In summary, only the preferred embodiment of the present invention is presented to solve the problem. The scope of the invention is not limited to the scope of the invention, which is to be construed as conforming to the scope of the patent application of the invention, or equivalent variations and modifications in accordance with the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a Schiff-fighting diagram of a Ni-Cr equivalent diagram of an embodiment of the chrome-nitrogen-Wheats field of the present invention; and Figures 2A and 2B are chromium Mn-Nitrovos of the present invention. Microscopic metallographic pictures of different parts of the Tiantie stainless steel example. [Main component symbol description] 10

Claims (1)

200909593 十、申請專利範圍： 1. 一種鉻錳氮沃斯田鐵系不銹鋼，包括： 重量百分比介於0.005%~0.08%之碳元素； 重量百分比介於0.3%~0.9%石夕元素； 重量百分比介於12.1%〜14.8%錳元素； 重量百分比介於〇_〇〇1%~〇.〇4%鱗元素； 重量百分比介於0.001 %〜0.03%硫元素； 重量百分比介於16%~ 19%鉻元素； 重量百分比介於0.5%〜1.8%鎳元素； 重量百分比介於0.2%〜0·45%氮元素； 重量百分比介於0.001 %~〇.3%鉬元素； 重量百分比介於0.001%~0.3%銅元素；以及 多數製造過程中不可避免的微量元素。 2. 如申請專利範圍第1項所述之鉻錳氮沃斯田鐵系不銹 鋼，包括： 重量百分比0.0642%之碳元素； 重量百分比0.69%石夕元素； 重量百分比12.43%猛元素； 重量百分比0.031 %麟元素； 重量百分比0.012%硫元素； 重量百分比16.87%鉻元素； 重量百分比1.21 %鎳元素； 重量百分比0.59%氮元素； 重量百分比0.026%銦元素； 200909593 重量百分比〇.彳06%銅元素；及 多數製造過程中不可避免的微量元素。 3. 如申請專利範圍第1項所述之鉻錳氮沃斯田鐵系不銹 鋼，包括： 重量百分比0.0547%之碳元素； 重量百分比0.81 %石夕元素； 重量百分比13.92%錳元素； 重量百分比0.01%磷元素； 重量百分比0.001 %硫元素； 重量百分比16.71%鉻元素； 重量百分比0.82%鎳元素； 重量百分比0.24%氮元素； 重量百分比〇.〇25%|目元素； 重量百分比0.104%銅元素；及 多數製造過程中不可避免的微量元素。 4. 如申請專利範圍第1項所述之鉻錳氮沃斯田鐵系不銹 鋼，包括： 重量百分比0.0432%之碳元素； 重量百分比0.85%矽元素； 重量百分比12.12%猛元素； 重量百分比〇.〇 12%麟元素； 重量百分比0.005%硫元素； 重量百分比16.38%鉻元素； 重量百分比0.09%鎳元素； 12 200909593 重量百分比0.35%氮元素； 重量百分比0.027%銦元素； 重量百分比0.109%銅元素；及 多數製造過程中不可避免的微量元素。 13200909593 X. Patent application scope: 1. A chromium-manganese-nitrogen Worthite iron-based stainless steel, including: carbon with a weight percentage between 0.005% and 0.08%; weight percentage between 0.3% and 0.9% of the stone element; Between 0.11% and 14.8% manganese element; weight percentage between 〇_〇〇1%~〇.〇4% scale element; weight percentage between 0.001%~0.03% sulfur element; weight percentage between 16%~ 19% Chromium; weight percentage between 0.5% and 1.8% nickel; weight percentage between 0.2% and 0.45% nitrogen; weight percentage between 0.001% and 3%.3% molybdenum; weight percentage between 0.001%~ 0.3% copper; and trace elements that are inevitable in most manufacturing processes. 2. The chrome-manganese-nitrogen Worth iron-based stainless steel according to item 1 of the patent application includes: a carbon element having a weight percentage of 0.0642%; a weight percentage of 0.69% of the stone element; a weight percentage of 12.43% of the elemental element; and a weight percentage of 0.031 %麟元素; weight percentage 0.012% sulfur element; weight percentage 16.87% chromium element; weight percentage 1.21% nickel element; weight percentage 0.59% nitrogen element; weight percentage 0.026% indium element; 200909593 weight percentage 〇.彳06% copper element; And trace elements that are inevitable in most manufacturing processes. 3. The chrome-manganese-nitrogen-Wolsten-iron stainless steel as described in claim 1 of the patent scope includes: 0.0547% by weight of carbon element; 0.81% by weight of Shixia element; 13.92% by weight of manganese element; % phosphorus element; weight percentage 0.001% sulfur element; weight percentage 16.71% chromium element; weight percentage 0.82% nickel element; weight percentage 0.24% nitrogen element; weight percentage 〇.〇25%|mesh element; weight percentage 0.104% copper element; And trace elements that are inevitable in most manufacturing processes. 4. The chrome-manganese-nitrogen Worth iron-based stainless steel as described in claim 1 includes: a carbon element of 0.0432% by weight; a fluorene element of 0.85% by weight; a 12.12% by weight element; a weight percentage 〇. 〇12% lining element; weight percentage 0.005% sulfur element; weight percentage 16.38% chromium element; weight percentage 0.09% nickel element; 12 200909593 weight percentage 0.35% nitrogen element; weight percentage 0.027% indium element; weight percentage 0.109% copper element; And trace elements that are inevitable in most manufacturing processes. 13
TW096132137A 2007-08-29 2007-08-29 Chromium-manganese-nitrogen austenite series stainless steel TW200909593A (en)

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US11/905,922 US20090060775A1 (en) 2007-08-29 2007-10-05 Cr-Mn-N austenitic stainless steel
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