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ASTM CH20

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UNS J93401 UNS J93402
#ASTM # #CH20

Description

USA AISI ASTM CH20 and ASTM CH20 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ASTM CH20
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ASTM CH20 AISI USA
ASTM CG8M
UNS J93000
UNS J93254
ASTM CK3MCuN
UNS J93202
ASTM CK20
ASTM CH8
UNS J93400
ASTM CH10
UNS J93401

Chemical composition(mass fraction)(wt.%) of the ASTM CH20

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.04-0.20 Max 2.00 Max 1.50 Max 0.04 Max 0.040 22.0-26.0 12.0-15.0 Max 0.50

Mechanical Properties of steel grade ASTM CH20

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)
679 (≥) 451 (≥) 22 44 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade ASTM CH20

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 - -     0.24 -  
941 438 - 14.3 122   -  
826 - 41 33.2   414 111

Heat Treatment of steel grade ASTM CH20

Heat treated : 1645°C - 1114°C

Technological Curves of steel grade ASTM CH20

Cross Reference Table (Equivalent Grade) of ASTM CH20

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 J93401 UNS J93402
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