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ASTM 8640H

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UNS H86370 UNS H86400
#ASTM # # #8640H

Description

ASTM 8640H Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: ASTM 8640H
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel ASTM 8640H
ASTM 8625H
UNS H86250
ASTM 8627H
UNS H86270
ASTM 8630H
UNS H86300
ASTM 86B30H
UNS H86301
ASTM 8637H
UNS H86370

Chemical composition(mass fraction)(wt.%) of the ASTM 8640H

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
 0.37-0.44 0.15-0.35   0.7-1.05     0.35-0.65  0.35-0.75 
Mo Al Cu Nb Ti V Ce
 0.15-0.25            
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ASTM 8640H

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)
121 (≥) 443 (≥) 21 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade ASTM 8640H

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 -  
955 331 - 14.3 423   -  
646 - 32 23.2   133 142

Heat Treatment of steel grade ASTM 8640H

Heat treated : 1667°C - 1245°C

Technological Curves of steel grade ASTM 8640H

Cross Reference Table (Equivalent Grade) of ASTM 8640H

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 H86370 UNS H86400
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