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ASTM CN-7M

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21Cr-24Ni+Mo+N 20Cr-29Ni+Mo+Cu
#ASTM # # #CN-7M

Description

ASTM CN-7M Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: ASTM CN-7M
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel ASTM CN-7M
ASTM CG-6MMnN
19Cr-10Ni+Mo+N
ASTM CG-3M
19Cr-11Ni+Mo
ASTM CG-8M
19Cr-11Ni+Mo
ASTM CN-3M
21Cr-25Ni+Mo
ASTM CN-3MN
21Cr-24Ni+Mo+N

Chemical composition(mass fraction)(wt.%) of the ASTM CN-7M

 

 

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
0.07 1.5 1.5 0.04 0.04 19.0-22.0 27.0-30.5
Mo Al Cu Nb Ti V Ce
2.0-3.0   3.0-4.0        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ASTM CN-7M

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)
586 (≥) 379 (≥) 44 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade ASTM CN-7M

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
24 - -     0.13 -  
842 943 - 33.3 443   -  
846 - 32 23.2   142 141

Heat Treatment of steel grade ASTM CN-7M

Heat treated : 1754°C - 1725°C

Technological Curves of steel grade ASTM CN-7M

Cross Reference Table (Equivalent Grade) of ASTM CN-7M

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
21Cr-24Ni+Mo+N 20Cr-29Ni+Mo+Cu
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