35CRMO seamless steel pipe and the general application of a fluid with seamless steel pipe: GB8163-992, boiler seamless steel pipe: GB3087-19993, high pressure boiler seamless pipe: GB5310-95 (ST45.8-Ⅲ type) 4 , fertilizers, equipment, high pressure seamless steel: GB6479-19995, geological drilling seamless: YB235-706, oil drilling seamless: YB528-657, petroleum cracking seamless steel pipe: GB9948-888, oil drill collar special Seamless: YB691-709, car axle seamless steel pipes: GB3088-199910, ship with seamless steel pipe: GB5312-1999 ① carbon steel solid solution strengthening effect is most obvious elements of Baosteel t91 alloy tube, with the carbonaceous increase the amount of short-term increase in the strength of steel, ductility, toughness down on this type of martensitic steel T91, the carbon content of the rise will accelerate carbide ball and gathering speed, accelerate the redistribution of alloying elements, reduce steel welding, corrosion resistance and oxidation resistance, it is generally desirable to reduce the heat-resistant steel carbon content, but low t91 seamless carbon content, the strength of steel will be reduced. Compared with 12Cr1MoV steel T91 steel, carbon content is reduced by 20%, which is considering the impact of the above factors and decisions. t91 alloy 51X3.5 | Pinggu t91 | Katherine source of steel provided by source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Katherine source of innovative ideas will lead pipe and you work into the brilliant, for a better future!