Low-carbon martensitic chromium-containing steel
    1.
    发明授权
    Low-carbon martensitic chromium-containing steel 有权
    低碳马氏体含铬钢

    公开(公告)号:US08333849B2

    公开(公告)日:2012-12-18

    申请号:US12989084

    申请日:2009-04-23

    IPC分类号: C22C38/48 C22C38/46

    摘要: A material for brake discs has temper softening resistance sufficient to maintain a hardness of HRC 31 or more after tempering at 700° C. for one hour. The low-carbon martensitic chromium-containing steel contains 0.02% to 0.10% of carbon and 0.02% to 0.10% of nitrogen, the total content of carbon and nitrogen being 0.08% to 0.16%; 0.5% or less of silicon; 0.1% or less of aluminum; 0.3% to 3.0% of manganese; 10.5% to 13.5% of chromium; 0.05% to 0.60% of niobium and 0.15% to 0.80% of vanadium, the total content of niobium and vanadium being 0.25% to 0.95%; 0.02% to 2.0% of nickel; and 1.5% or less of copper, and has an Fp value (=−230C+5Si−5Mn−6Cu+10Cr−12Ni+32Nb+22V+l2Mo+8W+10Ta+40A1−220N) of 80.0 to 96.0, a hardness after quenching of HRC 31 to 40, and a hardness after tempering at 700° C. for one hour of HRC 31 or more.

    摘要翻译: 用于制动盘的材料具有足以在700℃回火1小时后维持HRC 31以上的硬度的回火软化阻力。 低碳马氏体含铬钢含有0.02〜0.10%的碳和0.02〜0.10%的氮,碳和氮的总含量为0.08〜0.16%。 0.5%以下的硅; 0.1%以下的铝; 0.3%〜3.0%的锰; 10.5%〜13.5%的铬; 0.05〜0.60%的铌和0.15〜0.80%的钒,铌和钒的总含量为0.25〜0.95%。 0.02%〜2.0%的镍; 和1.5%以下的铜,并且具有80.0〜96.0的Fp值(= -230℃+ 5Si-5Mn-6Cu + 10Cr-12Ni + 32Nb + 22V + 12Mo + 8W + 10Ta + 40A1-220N),硬度为 将HRC 31淬火至40℃,在700℃回火1小时后的硬度为HRC 31以上。

    LOW-CARBON MARTENSITIC CHROMIUM-CONTAINING STEEL
    2.
    发明申请
    LOW-CARBON MARTENSITIC CHROMIUM-CONTAINING STEEL 有权
    低碳钢马氏体含铬钢

    公开(公告)号:US20110030851A1

    公开(公告)日:2011-02-10

    申请号:US12989084

    申请日:2009-04-23

    IPC分类号: C22C38/24

    摘要: A material for brake discs has temper softening resistance sufficient to maintain a hardness of HRC 31 or more after tempering at 700° C. for one hour. The low-carbon martensitic chromium-containing steel contains 0.02% to 0.10% of carbon and 0.02% to 0.10% of nitrogen, the total content of carbon and nitrogen being 0.08% to 0.16%; 0.5% or less of silicon; 0.1% or less of aluminum; 0.3% to 3.0% of manganese; 10.5% to 13.5% of chromium; 0.05% to 0.60% of niobium and 0.15% to 0.80% of vanadium, the total content of niobium and vanadium being 0.25% to 0.95%; 0.02% to 2.0% of nickel; and 1.5% or less of copper, and has an Fp value (=−230C+5Si−5Mn−6Cu+10Cr−12Ni+32Nb+22V+12Mo+8W+10Ta+40Al−220N) of 80.0 to 96.0, a hardness after quenching of HRC 31 to 40, and a hardness after tempering at 700° C. for one hour of HRC 31 or more.

    摘要翻译: 用于制动盘的材料具有足以在700℃回火1小时后维持HRC 31以上的硬度的回火软化阻力。 低碳马氏体含铬钢含有0.02〜0.10%的碳和0.02〜0.10%的氮,碳和氮的总含量为0.08〜0.16%。 0.5%以下的硅; 0.1%以下铝; 0.3%〜3.0%的锰; 10.5%〜13.5%的铬; 0.05〜0.60%的铌和0.15〜0.80%的钒,铌和钒的总含量为0.25〜0.95%。 0.02%〜2.0%的镍; 和1.5%以下的铜,并且具有80.0〜96.0的Fp值(= -230℃+ 5Si-5Mn-6Cu + 10Cr-12Ni + 32Nb + 22V + 12Mo + 8W + 10Ta + 40Al-220N) 将HRC 31淬火至40℃,在700℃回火1小时后的硬度为HRC 31以上。

    Stainless steel sheet and method for producing thereof
    5.
    发明授权
    Stainless steel sheet and method for producing thereof 失效
    不锈钢板及其制造方法

    公开(公告)号:US5496514A

    公开(公告)日:1996-03-05

    申请号:US189902

    申请日:1994-02-01

    摘要: A fracture resistant stainless steel sheet comprises: non-metallic inclusions of Al.sub.2 O.sub.3, MnO, and SiO.sub.2 which inevitably exist in stainless steel; the non-metallic inclusions having a composition situated in a region defined by nine points in a phase diagram of a 3-component system of "Al.sub.2 O.sub.3 --MnO--SiO.sub.2 "; the stainless steel sheet having an 1.0% on-set stress of at least 1520 N/mm.sup.2 (155 kgf/mm.sup.2); the stainless steel sheet having an anisotropic difference of 1.0% on-set stress of 196 N/mm.sup.2 (20 kgf/mm.sup.2) or less; and the stainless steel sheet having a Erichsen number of at least 4.6 mm.A method for producing a high fracture resistant stainless steel sheet comprises the steps of: preparing a stainless steel strip; applying to the stainless steel strip a process of annealing--pickling --first cold rolling (CR.sub.1)--first intermediate annealing--second cold rolling (CR.sub.2)--second intermediate annealing--third cold rolling (CR.sub.3)--final annealing--fourth cold rolling (CR.sub.4)--low temperature heat treatment.

    摘要翻译: 耐断裂不锈钢板包括不锈钢中不可避免地存在的Al2O3,MnO和SiO2的非金属夹杂物; 在“Al 2 O 3 -MnO-SiO 2”的3组分体系的相图中具有位于由9个点限定的区域中的组成的非金属夹杂物; 不锈钢板具有至少1520N / mm 2(155kgf / mm 2)的1.0%的设定应力; 各向异性差为1.0N / mm2(20kgf / mm2)以上的不均匀性的不锈钢板, 并且具有至少4.6mm的埃里克森数的不锈钢板。 高耐断裂不锈钢板的制造方法包括以下工序:制作不锈钢带; 向不锈钢带施加退火 - 酸洗 - 第一次冷轧(CR1) - 第一中间退火 - 第二次冷轧(CR2) - 第二次中间退火 - 第三次冷轧(CR3) - 最终退火 - 第四次冷轧(CR4) ) - 低温热处理。

    Stainless steel sheet and method for producing thereof
    6.
    发明授权
    Stainless steel sheet and method for producing thereof 失效
    不锈钢板及其制造方法

    公开(公告)号:US5407493A

    公开(公告)日:1995-04-18

    申请号:US189504

    申请日:1994-01-31

    摘要: A fracture resistant stainless steel sheet comprises: non-metallic inclusions of Al.sub.2 O.sub.3, MnO, and SiO.sub.2 which inevitably exist in stainless steel; the non-metallic inclusions having a composition situated in a region defined by nine points in a phase diagram of a 3-component system of "Al.sub.2 O.sub.3 -MnO-SiO.sub.2 "; the stainless steel sheet having an 1.0% on-set stress of at least 1520 N/mm.sup.2 (155 kgf/mm.sup.2); the stainless steel sheet having an anisotropic difference of 1.0% on-set stress of 196 N/mm.sup.2 (20 kgf/mm.sup.2) or less; and the stainless steel sheet having a punch test work load of at least 25 kgf.multidot.mm or more.A method for producing a high fracture resistant stainless steel sheet comprises the steps of: preparing a stainless steel strip; applying to the stainless steel strip a process of annealing--pickling --first cold rolling (CR.sub.1)--first intermediate annealing--second cold rolling (CR.sub.2)--second intermediate annealing--third cold rolling (CR.sub.3)--final annealing--fourth cold rolling (CR.sub.4)--low temperature heat treatment.

    摘要翻译: 耐断裂不锈钢板包括不锈钢中不可避免地存在的Al2O3,MnO和SiO2的非金属夹杂物; 在“Al 2 O 3 -MnO-SiO 2”的3组分体系的相图中具有位于由9个点限定的区域中的组成的非金属夹杂物; 不锈钢板具有至少1520N / mm 2(155kgf / mm 2)的1.0%的设定应力; 各向异性差为1.0N / mm2(20kgf / mm2)以上的不均匀性的不锈钢板, 并且所述不锈钢板具有至少25kgfxmm以上的冲压试验工作载荷。 高耐断裂不锈钢板的制造方法包括以下工序:制作不锈钢带; 向不锈钢带施加退火 - 酸洗 - 第一次冷轧(CR1) - 第一中间退火 - 第二次冷轧(CR2) - 第二次中间退火 - 第三次冷轧(CR3) - 最终退火 - 第四次冷轧(CR4) ) - 低温热处理。

    High strength and high toughness stainless steel sheet and method for
producing thereof
    7.
    发明授权
    High strength and high toughness stainless steel sheet and method for producing thereof 失效
    高强度高韧性不锈钢板及其制造方法

    公开(公告)号:US5314549A

    公开(公告)日:1994-05-24

    申请号:US99171

    申请日:1993-07-29

    IPC分类号: C21D8/02 C22C38/40 C21D8/00

    CPC分类号: C22C38/40 C21D8/0205

    摘要: A stainless steel sheet essentially consisting of: 0.01 to 0.2 wt. % C, 0.1 to 2 wt. % Si, 0.1 to 2 wt. % Mn, 4 to 11 wt. % Ni, 13 to 20 wt. % Cr, 0.01 to 0.2 wt. % N, 0.0005 to 0.0025 wt. % sol.Al, 0.002 to 0.01 wt. % O, 0.009 wt. % or less S, and the balance being Fe and inevitable impurities; the sheet containing 40 to 90% martensite; and the steel sheet having a 1400 N/mm.sup.2 or more tensile stress when a tensile strain is 1.0%. The invention also provides a method for producing a stainless steel sheet comprising the steps of: applying to the steel sheet a process of first cold rolling (CR.sub.1)--first intermediate annealing--second cold rolling (CR.sub.2)--second intermediate annealing--third cold rolling (CR.sub.3)--the final annealing--fourth cold rolling (CR.sub.4)--low temperature heat treatment; the first-, second- and third cold reduction ratio being 30% to 60%; the annealing temperatures in the first-, second- and final annealing being in the range of 950.degree. C. to 1100.degree. C.; the fourth cold reduction ratio being 66% to 76%; and the low temperature heat treatment ranging 300.degree. C. to 600.degree. C. for a period of 0.1 sec to 300 sec.

    摘要翻译: 不锈钢板基本上由以下组成:0.01〜0.2重量% %C,0.1〜2重量% %Si,0.1〜2重量% %Mn,4〜11wt。 %Ni,13〜20wt。 %Cr,0.01〜0.2wt。 %N,0.0005〜0.0025wt。 %sol.Al,0.002〜0.01wt。 %O,0.009wt。 %以下S,余量为Fe和不可避免的杂质; 该片材含有40〜90%的马氏体; 当拉伸应变为1.0%时,钢板的拉伸应力为1400N / mm 2以上。 本发明还提供一种不锈钢板的制造方法,其特征在于,包括以下步骤:向钢板施加第一冷轧(CR1) - 第一中间退火 - 第二次冷轧(CR2) - 第二中间退火 - 第三次冷轧 (CR3) - 最终退火 - 第四次冷轧(CR4) - 低温热处理; 第一,第二和第三冷压比为30%至60%; 在第一,第二和最终退火中的退火温度在950℃至1100℃的范围内。 第四次冷压比为66%至76%; 在300〜600℃的低温热处理中,时间为0.1秒〜300秒。