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SA-540 Grade B21 Class 5

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America ASME SA-540GradeB21Class5 特殊用途合金钢螺栓连接材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-540GradeB21Class5 / SA-540 Grade B21 Class 5
Category Grade Standard Region/Area Standard Content
Metals SA-540 Grade B21 Class 5 ASME SA-540/SA-540M America 特殊用途合金钢螺栓连接材料

Chemical composition(mass fraction)(wt.%) of the SA-540 Grade B21 Class 5

Element Min Max Similar

Mechanical Properties of steel grade SA-540 Grade B21 Class 5

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)
859 (≥) 557 (≥) 32 32 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade SA-540 Grade B21 Class 5

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 - -     0.42 -  
837 941 - 41.3 343   -  
693 - 32 13.2   111 323

Heat Treatment of steel grade SA-540 Grade B21 Class 5

Heat treated : 1257°C - 1782°C

Technological Curves of steel grade SA-540 Grade B21 Class 5

Cross Reference Table (Equivalent Grade) of SA-540 Grade B21 Class 5

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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