确定压力容器安全系数原则

Abstract The pressure vessel safety coefficient is directly affected by material parameters which requires consideration of yieldstrength as well as tensile strength when choosing the material's allowable stress value. Austenitic stainless steel has strong strain capacity strengthening ability and toughness. In order to put these characteristics fully play out its allowable stress value should BE especiallyconsidered. With the maturity of science and technology and author's experience it can not only ensure the safety of pressure vessels butalso could save material and reduce costs. Pressure vessel safety coefficient has a lower trend which is the result of integrating theory withpractice. 院压力容器 安全系数 许用应力值 抗拉强度 屈服强度Key words pressure vessel safety coefficient allowable stress value tensile strength yield strength中图分类号院X933.4 文献标识码院A 文章编号院1006-4311（2014）15-0070-02