When 35CrMo seamless steel pipe at the time of 500HB hardness less, which is proportional to the tensile strength and hardness, kg / mm2 (óB) = 1/3 X HB = 3.2 X HRC = 2.1 X HS, but the above relation is not in What places have been established from heat side, the tempering temperature is low, kg / m㎡ correlation between HRC and can be destroyed when, 35CrMo hardness relationship seamless steel tempering temperature, hardness and tensile strength with the return temperature decreases with fire, but in the state and below 300 ℃ quenching and tempering, the relationship between hardness and tensile strength is difficult to set up. When the tempering temperature is about 300 ℃, t91, kg / m㎡ has a relationship with HRC, ie, high hardness, tensile strength is high; low hardness, tensile strength is low. In tempering state desires a kg / m㎡ value is very difficult, because the tensile strength values ??are discrete distributions. Because kg / mm2 tempering 35CrMo unstable and can not be determined a seamless steel tube, so the Japanese Industrial Standard (JIS) in the tensile properties measured above 400 ℃ temperature tempering member also pass the test (also 300 ℃ tempered workpiece). In other words is reversed only quality pieces (+ 400 ℃ quenching and tempering) tensile test. Requirements in the industry just in the anti-rotating bending fatigue and abrasion resistance when using tempering pieces. Induction hardening and carburizing application examples that do this. 35CrMo seamless steel tensile stresses do not use low-temperature tempering. However, in low-carbon steel, but it can happen since M quenching and tempering (Ms point so high), there are users in the quenched state. Lath martensite structure of low carbon steel self-tempering, are used in industrial applications, but must now consider 35CrMo seamless steel hardenability and mass effect (if necessary add B, Cr, Mn and other metals ). :( Varieties imported from Japan, Germany, Italy, Spain) of Island t91 alloy tube, alloy steel, stainless steel, carbon steel pipe, elbow, tee, petroleum, chemical, power provide supporting services. Material mainly: T91, A335P22, P91,12Cr1Mo, 10CrMo910, 15CrMo (STFA22 13CrMo44) WB36 (15NiCuMoNb5) 12Cr2MoWvTiB (Steel Institute 102) STFA25 (Cr5Mo) Cr9Mo ST45.8-III (GB5310 20G), SUS321 (1Cr1BNi9Ti), SUS321H316L SUS304 16Mn (GB6479, GB8163) 45 # 20 # (GB6479,5310,9948) and so on. Companies in the quality first, people-oriented, business integrity, mutual benefit policy. In the strong support of our customers, Baosteel steel t91, nearly a decade has gradually grown into a strong financial background, excellent reputation, adequate supply, supporting facilities of leading enterprises. Met with Tianjin Seamless, Steel, Bao Steel, Hengyang Steel, Steel and other major steel mills to form a solid purchase channels, with Hebei Electric Power, China Petroleum, China Railway Construction, Luxi Chemical, CJ Group and other major well-known enterprises to establish a good supplier relations. Company staff sincerely welcome friends to visit the guide, we will be flexible operating integrity, fast and perfect service to win the trust of customers, service to customers, in return for the customer. _ Katherine source of imports t91 alloy steel (certified) _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.