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4Cr9Si2

Favorite Datasheet
1Cr5Mo 4Cr10Si2Mo
#4Cr9Si2

Description

China GB GB/T 1221 (1992) , GB/T 12773 (1991) , JB/T 6398 (2006) , 4Cr9Si2 Specialsteel Valve steel bars for internal combustion engines - Technical requirements and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 4Cr9Si2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 4Cr9Si2 Martensite GB China Valve steel bars for internal combustion engines - Technical requirements

Chemical composition(mass fraction)(wt.%) of the 4Cr9Si2

C Si Mn P S Ni Cr
0.35 -0.50 2.00 -3.00 ≤0.70 ≤0.035 ≤0.030 ≤0.60 8.00 -10.00

Mechanical Properties of steel grade 4Cr9Si2

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
659 (≥) 183 (≥) 23 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade 4Cr9Si2

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
23 - -     0.32 -  
399 986 - 12.3 321   -  
639 - 41 44.2   312 242

Heat Treatment of steel grade 4Cr9Si2

Heat treated : 1881°C - 1326°C

Technological Curves of steel grade 4Cr9Si2

Cross Reference Table (Equivalent Grade) of 4Cr9Si2

Grade Standard Country Application
4Cr9Si2

Relevant standard of 4Cr9Si2

GB/T 1221 (1992) Heat-resisting steel bars GB-T-1221--(1992)-.pdf
GB/T 12773 (1991) Valve steel bars for internal combustion engines - Technical requirements GB-T-12773--(1991)-.pdf
JB/T 6398 (2006) Heavy stainless acid resistant and heat resistant steel forgings JB-T-6398--(2006)--.pdf
1Cr5Mo 4Cr10Si2Mo
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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