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A334 Grade 7

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America ASTM A334Grade7 低温设备用无缝与焊接碳素和合金钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A334Grade7 / A334 Grade 7
Category Grade Standard Region/Area Standard Content
Metals A334 Grade 7 ASTM A334/A334M America 低温设备用无缝与焊接碳素和合金钢管

Chemical composition(mass fraction)(wt.%) of the A334 Grade 7

Element Min Max Similar

Mechanical Properties of steel grade A334 Grade 7

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)
796 (≥) 451 (≥) 42 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade A334 Grade 7

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 - -     0.42 -  
675 866 - 21.3 221   -  
192 - 31 22.2   424 112

Heat Treatment of steel grade A334 Grade 7

Heat treated : 1851°C - 1644°C

Technological Curves of steel grade A334 Grade 7

Cross Reference Table (Equivalent Grade) of A334 Grade 7

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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