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SK4M

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SK3M SK5M
#SK4M

Description

Japan JIS SK4M Cold rolled special steel strip and SK4M Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SK4M
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SK4M JIS Japan Cold rolled special steel strip
SKH52
SKH53
SKH54
SKH55
SKH56
SKH57
SKH58
SKH59
SK2M
SK3M

Chemical composition(mass fraction)(wt.%) of the SK4M

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.90-1.00 Max 0.35 Max 0.50 Max 0.030 Max 0.030 Max 0.30 Max 0.25 Max 0.25

Mechanical Properties of steel grade SK4M

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)
521 (≥) 496 (≥) 34 43 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade SK4M

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
32 - -     0.31 -  
749 845 - 41.3 424   -  
635 - 31 24.2   211 141

Heat Treatment of steel grade SK4M

Heat treated : 1529°C - 1166°C

Technological Curves of steel grade SK4M

Cross Reference Table (Equivalent Grade) of SK4M

Grade Standard Country Application
SK4M JIS Japan Cold rolled special steel strip
SK3M SK5M
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
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...

Rfq.: sales@longhaisteel.com
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