FERRITIC STEEL flanges for use at MDMT not colder than minus 20 degree F could be exempted from impact testing by paragraph UCS-66(c) of ASME code Section VIII, Div 1. Can someone help me with a definition of “ferritic Steel” according to the ASME code.? Can SA 105 be considered ...
不妥吧，那一条写的是“B16.5或B16.7 铁素体钢法兰“，尺寸要满足相关要求，厚度很厚，脆性增加，还是按普通部件的步骤确定MDMT，然后决定是否进行冲击试验吧