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ASTM M4

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UNS T13123 UNS T13104
#ASTM # # #M4

Description

ASTM M4 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: ASTM M4
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel ASTM M4
ASTM M1
UNS T13101
ASTM M2
UNS T13102
ASTM M2(C)
UNS T13102
ASTM M3 Class1
UNS T13113
ASTM M3 Class2
UNS T13123

Chemical composition(mass fraction)(wt.%) of the ASTM M4

 


C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
1.25-1.4 0.2-0.45 0.15-0.4 0.03 0.03 3.75-4.75  
Mo Al W Nb Ti V Ce
4.25-5.5   5.25-6.5     3.75-4.5  
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ASTM M4

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)
991 (≥) 295 (≥) 22 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade ASTM M4

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
12 - -     0.12 -  
592 333 - 14.3 131   -  
154 - 42 12.2   342 212

Heat Treatment of steel grade ASTM M4

Heat treated : 1822°C - 1178°C

Technological Curves of steel grade ASTM M4

Cross Reference Table (Equivalent Grade) of ASTM M4

Grade Standard Country Application
ASTM 1030 ASTM USA General use carbon steel bar
ASTM 1005 ASTM USA General use carbon steel bar
ASTM 1006 ASTM USA General use carbon steel bar
ASTM 1008 ASTM USA General use carbon steel bar
ASTM 1010 ASTM USA General use carbon steel bar
ASTM 1013 ASTM USA General use carbon steel bar
ASTM 1015 ASTM USA General use carbon steel bar
ASTM 1016 ASTM USA General use carbon steel bar
ASTM 1017 ASTM USA General use carbon steel bar
ASTM 1018 ASTM USA General use carbon steel bar
ASTM 1019 ASTM USA General use carbon steel bar
ASTM 1020 ASTM USA General use carbon steel bar
ASTM 1021 ASTM USA General use carbon steel bar
ASTM W1-A ASTM USA Carbon tool steel
ASTM A182 F55 ASTM USA Super Duplex
ASTM 431 ASTM USA Martensitic special steel
ASTM 440A ASTM USA Martensitic special steel
ASTM 440B ASTM USA Martensitic special steel
ASTM 440C ASTM USA Martensitic special steel
ASTM 501 ASTM USA Martensitic special steel
UNS T13123 UNS T13104
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