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Martensite 4

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Martensite 3 Martensite 11
#Martensite-4

Description

China CNS Martensite 4 CNS standard heat resistant steel bars(CNS 9608-1998) and Martensite 4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: Martensite 4
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy Martensite 4 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 37
Austenitic 38
Austenitic 309
Austenitic 310
Austenitic 330
Austenitic 660
Austenitic 661
Ferrite 46
Martensite 1
Martensite 3

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％)
0.75-0.85 1.75-2.25 0.20-0.60 Max 0.030 Max 0.030 19.0-20.5 1.15-1.65

Mechanical Properties of steel grade Martensite 4

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)
836 (≥) 753 (≥) 44 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade Martensite 4

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 - -     0.23 -  
773 291 - 42.3 442   -  
148 - 31 44.2   142 443

Heat Treatment of steel grade Martensite 4

Heat treated : 1431°C - 1914°C

Technological Curves of steel grade Martensite 4

Cross Reference Table (Equivalent Grade) of Martensite 4

Grade Standard Country Application
Martensite 4 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 3 Martensite 11
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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...

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