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M20

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M10 M30
#M20

Description

Japan JIS M20 Carbide for cutting tools and M20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: M20
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy M20 JIS Japan Carbide for cutting tools
SKC3
SKC11
SKC24
SKC31
P01
P10
P30
P40
BW1A
M10

Chemical composition(mass fraction)(wt.%) of the M20

W(%) Co(%) Other(%)
89-95 5-11 Ti,Ta(Nb)(%): 2-20

Mechanical Properties of steel grade M20

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)
646 (≥) 952 (≥) 32 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade M20

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
33 - -     0.44 -  
274 353 - 23.3 432   -  
817 - 14 24.2   112 213

Heat Treatment of steel grade M20

Heat treated : 1443°C - 1129°C

Technological Curves of steel grade M20

Cross Reference Table (Equivalent Grade) of M20

Grade Standard Country Application
M20 JIS Japan Carbide for cutting tools
STKM20A CNS China China Taiwan Structural steel
M10 M30
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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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