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Carpenter 20 Mo 4

Description

Carpenter 20 Mo 4 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: Carpenter 20 Mo 4

Chemical composition(mass fraction)(wt.%) of the Carpenter 20 Mo 4

C
Si
Mn
P
S
Cr Ni
0.03 0.5 1.0     22.5-25 35-40
Mo Al Cu Nb Ti V Ce
3.5-5.0   0.5-1.5        
N Co Pb B Other    
        Fe...
Nb/Ta0.15-0.35
   
             

Mechanical Properties of steel grade Carpenter 20 Mo 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)
952 (≥) 535 (≥) 11 32 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade Carpenter 20 Mo 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
12 - -     0.12 -  
458 269 - 32.3 424   -  
287 - 13 11.2   133 324

Heat Treatment of steel grade Carpenter 20 Mo 4

Heat treated : 1747°C - 1629°C

Technological Curves of steel grade Carpenter 20 Mo 4

Cross Reference Table (Equivalent Grade) of Carpenter 20 Mo 4

Grade Standard Country Application
UNS G10120 UNS USA General use carbon steel bar
ASTM 1020 ASTM USA General use carbon steel bar
UNS G10200 UNS USA General use carbon steel bar
T20811 UNS USA Alloy tool steel
T20810 UNS USA Alloy tool steel
T20812 UNS USA Alloy tool steel
H13 ASTM USA Alloy tool steel
T20813 UNS USA Alloy tool steel
T20814 UNS USA Alloy tool steel
T20819 UNS USA Alloy tool steel
T20821 UNS USA Alloy tool steel
T20822 UNS USA Alloy tool steel
H23 ASTM USA Alloy tool steel
T20823 UNS USA Alloy tool steel
T20824 UNS USA Alloy tool steel
T20825 UNS USA Alloy tool steel
T20826 UNS USA Alloy tool steel
T20841 UNS USA Alloy tool steel
T20842 UNS USA Alloy tool steel
T20843 UNS USA Alloy tool steel

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