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A442 Grade 55

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America ASTM A442Grade55 压力容器板，碳素钢，改进的过渡性质 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A442Grade55 / A442 Grade 55
Category Grade Standard Region/Area Standard Content
Metals A442 Grade 55 ASTM A442/A442M America 压力容器板，碳素钢，改进的过渡性质

Chemical composition(mass fraction)(wt.%) of the A442 Grade 55

Element Min Max Similar
Si 0.1300 0.3300 -
S - 0.0400 -
P - 0.0350 -
Mn 0.7400 1.2000 -
C - 0.2200 -

Mechanical Properties of steel grade A442 Grade 55

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)
762 (≥) 928 (≥) 12 22 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade A442 Grade 55

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
13 - -     0.43 -  
153 569 - 43.3 331   -  
663 - 41 34.2   133 444

Heat Treatment of steel grade A442 Grade 55

Heat treated : 1656°C - 1441°C

Technological Curves of steel grade A442 Grade 55

Cross Reference Table (Equivalent Grade) of A442 Grade 55

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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