Martensite 4

Martensite 4

China CNS Martensite 4 China Taiwan Heat-Resistant Steel and Martensite 4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Category Type Steel Grade Standard Country Application
Steel Grades Heat-Resistant Steel Martensite 4 CNS China China Taiwan Heat-Resistant Steel
Ferrite 409L
Ferrite 446
Austenitic 31
Austenitic 35
Austenitic 36
Austenitic 37
Austenitic 38
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 0.03 0.03 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)
396 (≥) 318 (≥) 44 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

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
23     0.33  
212 143 11.3 324    
362 33 23.2   334 112

Heat Treatment of steel grade Martensite 4

Heat treated : 1215°C – 1437°C

Technological Curves of steel grade Martensite 4

Cross Reference Table (Equivalent Grade) of Martensite 4

Grade Standard Country Application
Martensite 1 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 3 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 4 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 11 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 600 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 616 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Martensite 1 CNS China China Taiwan Heat-Resistant Steel
Martensite 3 CNS China China Taiwan Heat-Resistant Steel
Martensite 4 CNS China China Taiwan Heat-Resistant Steel
Martensite 11 CNS China China Taiwan Heat-Resistant Steel
Martensite 600 CNS China China Taiwan Heat-Resistant Steel
Martensite 616 CNS China China Taiwan Heat-Resistant Steel
Q345q E China Bridge structure with steel
Q345q C China Bridge structure with steel
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