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SK7M

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SK6M SKS2M
#SK7M

Description

Japan JIS SK7M Cold rolled special steel strip and SK7M Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SK7M
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SK7M JIS Japan Cold rolled special steel strip
SKH55
SKH56
SKH57
SKH58
SKH59
SK2M
SK3M
SK4M
SK5M
SK6M

Chemical composition(mass fraction)(wt.%) of the SK7M

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.60-0.70 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 SK7M

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)
914 (≥) 864 (≥) 44 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade SK7M

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
43 - -     0.42 -  
923 987 - 33.3 132   -  
442 - 31 23.2   432 321

Heat Treatment of steel grade SK7M

Heat treated : 1992°C - 1892°C

Technological Curves of steel grade SK7M

Cross Reference Table (Equivalent Grade) of SK7M

Grade Standard Country Application
SK7M JIS Japan Cold rolled special steel strip
SK6M SKS2M
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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