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 reached 1.9X105 hour long running time t91 seamless pipe, and a large number of test data tracking, When the persistent strength of the single specimen of test time has exceeded 105 hours outside the arc tube fiber elongation is less than 5%, do not bend to stress post-annealing treatment of domestic 1000MW unit boiler pressure boiler tube materials (part) with: the current domestic 1000MW Ultra supercritical boiler superheater, reheater material used: the low temperature superheater: 15CrMoG, 12Cr1MoVG, SA-213T91, SA-213TP347H; divider screen superheater: SA-213T23, SA-213T91, Super304H, Super304H SB (shot) , HR3C; Overheater: Super304H, Super304HSB (shot), HR3C; final superheater: Super304H, Super304HSB (shot), HR3C; low temperature reheater: 20G, SA210C, 15CrMoG, 12Cr1MoVG, SA-213T22, SA-213T23, SA-213T91, SA-213TP347H; last stage reheater: SA-213TP347H, Super304H, Super304HSB (shot). _ Katherine source t91 steel pipe (certified) _ Sanming t91 provided by source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) Shandong Liaocheng, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Katherine source leader in steel with the staff warmly welcome all inquiries negotiations to create Katherine source steel a better future.