G20CrMo 4118H SCM421 B22(20MnCr4-2) bearing steel

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Posting date : Feb 18, 2013

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METALS | Iron and s

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72-

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1. Chemical composition C: 0.17 ~ 0.23 (promised error: ± 0.02) Si: 0.20 ~ 0.35 (promised error: ± 0.03) Mn: 0.65 ~ 0.95 to bias: ± 0.04 S: ≤ 0.030 (promised deviation: 0.005) P ≤ 0.030 (promised deviation: 0.005) Cr:0.35 ~ 0.65 to bias: ± 0.15 Cu ≤ 0.25 (promised bias: +0.05) Mo:0.08 ~ 0.15 (promised deviation: ± 0.02) 2. Features and scope of application: By high hardenability, no temper brittleness, welding performance is quite good, the formation of cold cracking is very small, machinability and cold strain plasticity is good.Generally used in hardening or carburizing and quenching condition, used to work in the manufacture of non - corrosive medium and the temperature is below 250 ℃, containing a mixture of nitrogen and hydrogen medium pressure pipe and all kinds of fasteners, higher carburizing parts, such as gears, shaft. 3.Dimension：3mm~600mm 4.Brand name：Yuji 5.Delivery time：7-15days after receiving advanced payment 6.Packing detail：under requirement 7.Supplying Ability：800Tons/month 8.Place of origin：China 9. MOQ: 20tons easy for containers loading 10.Payment：T/T L/C