Method of manufacturing hot formed high strength steel
    1.
    发明授权
    Method of manufacturing hot formed high strength steel 有权
    热成型高强度钢的制造方法

    公开(公告)号:US07048810B2

    公开(公告)日:2006-05-23

    申请号:US10253129

    申请日:2002-09-24

    IPC分类号: C12D8/10

    摘要: A method for processing a hot formed, high-tensile-strength steel having an ultimate tensile strength (UTS) of at least about 730 MPa (105 ksi) and excellent toughness to retain essentially all the strength and toughness is provided. This processing is needed for the fabrication of high strength fittings that are used in the construction of linepipe for transport of natural gas, crude oil, as well as other applications. Furthermore, the hot formed high strength steel may be weldable with a Pcm of less than or equal to 0.35.

    摘要翻译: 提供了一种用于处理具有至少约730MPa(105ksi)的极限拉伸强度(UTS)和优异韧性以保持基本上所有强度和韧性的热成型的高拉伸强度钢的方法。 这种加工是制造用于天然气,原油以及其他应用的运输管线管道中使用的高强度配件所必需的。 此外,热成型的高强度钢可以以小于或等于0.35的Pcm可焊接。