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A437 Grade B4D

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America ASTM A437GradeB4D 高温用经特殊处理的涡轮型合金钢螺栓材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A437GradeB4D / A437 Grade B4D
Category Grade Standard Region/Area Standard Content
Metals A437 Grade B4D ASTM A437/A437M America 高温用经特殊处理的涡轮型合金钢螺栓材料

Chemical composition(mass fraction)(wt.%) of the A437 Grade B4D

Element Min Max Similar
V 0.2500 0.3500 -
Si 0.2000 0.3500 -
S - 0.0400 -
P - 0.0400 -
Mo 0.5000 0.6500 -
Mn 0.4500 0.7000 -
Cr 0.8000 1.1500 -
C 0.3600 0.4400 -
Al - 0.0150 -

Mechanical Properties of steel grade A437 Grade B4D

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)
775 (≥) 192 (≥) 31 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade A437 Grade B4D

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
22 - -     0.42 -  
759 886 - 32.3 411   -  
414 - 31 13.2   111 131

Heat Treatment of steel grade A437 Grade B4D

Heat treated : 1527°C - 1371°C

Technological Curves of steel grade A437 Grade B4D

Cross Reference Table (Equivalent Grade) of A437 Grade B4D

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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