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SA-723 Grade 2 Class 2a

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America ASME SA-723Grade2Class2a 压力部件用高强度合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-723Grade2Class2a / SA-723 Grade 2 Class 2a
Category Grade Standard Region/Area Standard Content
Metals SA-723 Grade 2 Class 2a ASME SA-723/SA-723M America 压力部件用高强度合金钢锻件

Chemical composition(mass fraction)(wt.%) of the SA-723 Grade 2 Class 2a

Element Min Max Similar
V - 0.2000 -
Si - 0.3500 -
S - 0.0150 -
P - 0.0150 -
Ni 2.3000 3.3000 -
Mo 0.3000 0.5000 -
Mn - 0.9000 -
Cr 0.8000 2.0000 -
C - 0.4000 -

Mechanical Properties of steel grade SA-723 Grade 2 Class 2a

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)
211 (≥) 553 (≥) 23 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade SA-723 Grade 2 Class 2a

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
31 - -     0.11 -  
181 894 - 41.3 243   -  
194 - 43 13.2   143 241

Heat Treatment of steel grade SA-723 Grade 2 Class 2a

Heat treated : 1961°C - 1167°C

Technological Curves of steel grade SA-723 Grade 2 Class 2a

Cross Reference Table (Equivalent Grade) of SA-723 Grade 2 Class 2a

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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