Properties and MetallurgicaIAspects of Heavy Wall Q& TLine Pipe Steels

摘要：

The production of Q&T line pipe steels for heavy wall pipe requires several properties to be fully matched.Among them is the yield strength for strain based criteria pipelines for subsea application. Yield strength must match the required mimmum under elevated temperature conditions 60 & 160 C and at the same time do not exceed the surface hardness that will make the welding inadequate. Maximum of 220 vickers hardness has been set for some of the subsea projects. Production in a busy Q&T line requires simple tools to predict the time and temperatures to achieve the desired properties. The classical strength and logarithm of time, after Bhadeshia 1, has been used with excellent results in these line pipe steels of different wall thickness.s. Production in a busy Q&T line requires simple tools to predict the time and temperatures to achieve the desired properties. The classical strength and logarithm of time, after Bhadeshia 1, has been used with excellent results in these line pipe steels of different wall thickness.

关键词： bainite heavy wall wall thickness tempering temperature yield point toughness

作者: Eloy Martinez R

作者单位: SvMet Engineering S.A.Puebla, Mexico

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 68-70

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）