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A668 Class G

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America ASTM A668ClassG 一般工业用碳素钢和合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A668ClassG / A668 Class G
Category Grade Standard Region/Area Standard Content
Metals A668 Class G ASTM A668/A668M America 一般工业用碳素钢和合金钢锻件

Chemical composition(mass fraction)(wt.%) of the A668 Class G

Element Min Max Similar
P - 0.0400 -
S - 0.0250 -
S - 0.0400 -
P - 0.0400 -

Mechanical Properties of steel grade A668 Class G

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)
395 (≥) 511 (≥) 11 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade A668 Class G

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
41 - -     0.44 -  
569 664 - 14.3 421   -  
884 - 41 44.2   212 344

Heat Treatment of steel grade A668 Class G

Heat treated : 1115°C - 1272°C

Technological Curves of steel grade A668 Class G

Cross Reference Table (Equivalent Grade) of A668 Class G

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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