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SA-372 Type V Grade 4 Class 55

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America ASME SA-372TypeVGrade4Class55 压力容器薄壁碳素钢和合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-372TypeVGrade4Class55 / SA-372 Type V Grade 4 Class 55
Category Grade Standard Region/Area Standard Content
Metals SA-372 Type V Grade 4 Class 55 ASME SA-372/SA-372M America 压力容器薄壁碳素钢和合金钢锻件

Chemical composition(mass fraction)(wt.%) of the SA-372 Type V Grade 4 Class 55

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0250 -
P - 0.0250 -
Mo 0.1500 0.2500 -
Mn 0.7500 1.0500 -
Cr 0.4000 0.6500 -
C 0.3000 0.4000 -

Mechanical Properties of steel grade SA-372 Type V Grade 4 Class 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)
185 (≥) 136 (≥) 24 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade SA-372 Type V Grade 4 Class 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
11 - -     0.23 -  
736 121 - 41.3 312   -  
932 - 41 22.2   111 412

Heat Treatment of steel grade SA-372 Type V Grade 4 Class 55

Heat treated : 1267°C - 1411°C

Technological Curves of steel grade SA-372 Type V Grade 4 Class 55

Cross Reference Table (Equivalent Grade) of SA-372 Type V Grade 4 Class 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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