HOT ROLLED THIN CAST STRIP PRODUCT AND METHOD FOR MAKING THE SAME
    6.
    发明申请
    HOT ROLLED THIN CAST STRIP PRODUCT AND METHOD FOR MAKING THE SAME 有权
    热轧薄板条带产品及其制造方法

    公开(公告)号:US20100215539A1

    公开(公告)日:2010-08-26

    申请号:US12708638

    申请日:2010-02-19

    IPC分类号: C22C38/00 B22D11/06

    摘要: A hot rolled steel strip made by the steps including assembling a twin roll caster, forming a casting pool of molten steel of such composition that the cast strip produced comprises by weight, greater than 0.25% and up to 1.1% carbon, between 0.40 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, counter rotating the casting rolls to solidify metal shells and forming a steel strip, hot rolling the steel strip such that mechanical properties at 10% and 35% reduction are within 10% for yield strength, tensile strength and total elongation, and coiling the hot rolled steel strip at a temperature between 550 and 750° C. to provide a majority of the microstructure comprising pearlite, along with bainite and acicular ferrite. The steel may have a free oxygen content between 5 and 50 ppm or between 25 and 45 ppm.

    摘要翻译: 一种由下列步骤制成的热轧钢带,其包括组装双辊铸造机,形成这样组成的钢水铸造池,所述铸造钢带的重量大于0.25%和高达1.1%的碳在0.40和2.0之间 %的锰,0.05-0.50%的硅,小于0.01%的铝,反向旋转铸辊以固化金属壳并形成钢带,热轧钢带使得10%和35%的机械性能降低在10以内 屈服强度,拉伸强度和总伸长率的百分比,以及在550和750℃之间的温度下卷取热轧钢带,以提供大部分包含珠光体的微结构以及贝氏体和针状铁素体。 钢可以具有5至50ppm之间或25至45ppm之间的游离氧含量。

    Thin cast strip product with microalloy additions, and method for making the same
    7.
    发明授权
    Thin cast strip product with microalloy additions, and method for making the same 有权
    具有微合金添加剂的薄铸带产品及其制造方法

    公开(公告)号:US09149868B2

    公开(公告)日:2015-10-06

    申请号:US12116039

    申请日:2008-05-06

    摘要: A steel product or thin steel cast strip comprised of, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, and at least one of niobium between 0.01% and 0.20% and vanadium between 0.01% and 0.20%, and having a microstructure of a majority bainite and acicular ferrite, and more than 70% niobium and/or vanadium in solid solution. The steel product may have an increase in elongation and an increase in yield strength after age hardening. The age hardened steel product may have niobium carbonitride particles with an average particle size of 10 nanometers and less, and may have substantially no niobium carbonitride particles greater than 50 nanometers. The steel product may have a yield strength of at least 380 MPa or a tensile strength of at least 410 MPa, or both. The steel product or thin cast steel strip may have a total elongation of at least 6% or 10%.

    摘要翻译: 一种钢产品或薄钢铸带,其重量比小于0.25%的碳,0.20-2.0%的锰,0.05-0.50%的硅,小于0.01%的铝和至少一种铌在0.01%和 0.20%,钒在0.01%至0.20%之间,并具有多数贝氏体和针状铁素体的微观组织,70%以上的固溶体中的铌和/或钒。 钢制品可以在老化硬化后的伸长率增加和屈服强度增加。 老化硬化钢产品可以具有平均粒径为10纳米或更少的碳氮化铌颗粒,并且基本上不具有大于50纳米的碳氮化铌颗粒。 该钢制品的屈服强度可以至少为380MPa,拉伸强度至少为410MPa,或两者均可。 钢产品或薄铸钢带的总伸长率可以至少为6%或10%。

    HOT ROLLED THIN CAST STRIP PRODUCT AND METHOD FOR MAKING THE SAME
    8.
    发明申请
    HOT ROLLED THIN CAST STRIP PRODUCT AND METHOD FOR MAKING THE SAME 有权
    热轧薄板条带产品及其制造方法

    公开(公告)号:US20130202914A1

    公开(公告)日:2013-08-08

    申请号:US13827026

    申请日:2013-03-14

    摘要: A hot rolled steel strip made by the steps including assembling a twin roll caster, forming a casting pool of molten steel of such composition that the cast strip produced comprises by weight, greater than 0.25% and up to 1.1% carbon, between 0.40 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, counter rotating the casting rolls to solidify metal shells and forming a steel strip, hot rolling the steel strip such that mechanical properties at 10% and 35% reduction are within 10% for yield strength, tensile strength and total elongation, and coiling the hot rolled steel strip at a temperature between 550 and 750° C. to provide a majority of the microstructure comprising pearlite, along with bainite and acicular ferrite. The steel may have a free oxygen content between 5 and 50 ppm or between 25 and 45 ppm.

    摘要翻译: 一种由下列步骤制成的热轧钢带,其包括组装双辊铸造机,形成这样组成的钢水铸造池,所述铸造钢带的重量大于0.25%和高达1.1%的碳在0.40和2.0之间 %的锰,0.05-0.50%的硅,小于0.01%的铝,反向旋转铸辊以固化金属壳并形成钢带,热轧钢带使得10%和35%的机械性能降低在10以内 屈服强度,拉伸强度和总伸长率的百分比,以及在550和750℃之间的温度下卷取热轧钢带,以提供大部分包含珠光体的微结构以及贝氏体和针状铁素体。 钢可以具有5至50ppm之间或25至45ppm之间的游离氧含量。

    Hot rolled thin cast strip product and method for making the same
    9.
    发明授权
    Hot rolled thin cast strip product and method for making the same 有权
    热轧薄钢带产品及其制造方法

    公开(公告)号:US08444780B2

    公开(公告)日:2013-05-21

    申请号:US12708638

    申请日:2010-02-19

    IPC分类号: C21D8/02 B22D11/00

    摘要: A hot rolled steel strip made by the steps including assembling a twin roll caster, forming a casting pool of molten steel of such composition that the cast strip produced comprises by weight, greater than 0.25% and up to 1.1% carbon, between 0.40 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, counter rotating the casting rolls to solidify metal shells and forming a steel strip, hot rolling the steel strip such that mechanical properties at 10% and 35% reduction are within 10% for yield strength, tensile strength and total elongation, and coiling the hot rolled steel strip at a temperature between 550 and 750° C. to provide a majority of the microstructure comprising pearlite, along with bainite and acicular ferrite. The steel may have a free oxygen content between 5 and 50 ppm or between 25 and 45 ppm.

    摘要翻译: 一种由下列步骤制成的热轧钢带,其包括组装双辊铸造机,形成这样组成的钢水铸造池,所述铸造钢带的重量大于0.25%和高达1.1%的碳在0.40和2.0之间 %的锰,0.05-0.50%的硅,小于0.01%的铝,反向旋转铸辊以固化金属壳并形成钢带,热轧钢带使得10%和35%的机械性能降低在10以内 屈服强度,拉伸强度和总伸长率的百分比,以及在550和750℃之间的温度下卷取热轧钢带,以提供大部分包含珠光体的微结构以及贝氏体和针状铁素体。 钢可以具有5至50ppm之间或25至45ppm之间的游离氧含量。

    THIN CAST STRIP PRODUCT WITH MICROALLOY ADDITIONS, AND METHOD FOR MAKING THE SAME
    10.
    发明申请
    THIN CAST STRIP PRODUCT WITH MICROALLOY ADDITIONS, AND METHOD FOR MAKING THE SAME 有权
    具有微合金添加剂的薄铸造产品及其制造方法

    公开(公告)号:US20120132323A1

    公开(公告)日:2012-05-31

    申请号:US13275405

    申请日:2011-10-18

    摘要: A steel product having, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, aluminum 0.008% or less by weight, and at least one element selected from the group consisting of titanium between about 0.01% and about 0.20%, niobium between about 0.01% and about 0.20%, molybdenum between about 0.05% and about 0.50%, and vanadium between about 0.01% and about 0.20%, and having a microstructure comprised of a majority bainite, and fine oxide particles of silicon and iron distributed through the steel microstructure of average precipitate size less than 50 nanometers. The yield strength of the steel product may be at least 55 ksi (380 MPa) or the tensile strength of at least 500 MPa, or both. The steel product may have total elongation of at least 6% or 10%, and thickness less than 3.0 mm.

    摘要翻译: 一种钢产品,其重量比小于0.25%的碳,0.20-2.0%的锰,0.05-0.50%的硅,0.008%或更少的重量的铝,以及至少一种选自钛在约 约0.01%至约0.20%的铌,约0.01%至约0.20%的铌,约0.05%至约0.50%的钼,约0.01%至约0.20%之间的钒,并且具有由大多数贝氏体组成的微结构 通过钢微观结构分布的硅和铁的氧化物颗粒的平均沉淀尺寸小于50纳米。 钢产品的屈服强度可以至少为55ksi(380MPa)或至少500MPa的拉伸强度,或两者。 钢制品的总伸长率可以至少为6%或10%,厚度小于3.0mm。