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ASTM A437 B4CB

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ASTM A437 B4B ASTM A437 B4D
#B4CB #B4D #B4B

Description

USA ASTM ASTM A437 B4CB Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1 and ASTM A437 B4CB Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: ASTM A437 B4CB
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel ASTM A437 B4CB ASTM USA Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1
1.8933
1.8940
S890Q
1.8983
S890QL
1.8941
S960Q
13CrMo44
ASP 2053
ASTM A437 B4B

Chemical composition(mass fraction)(wt.%) of the ASTM A437 B4CB

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) W(%) Al(%) Ti(%) Other(%)
0.20-0.25 0.20-0.50 0.50-1.00 ≤0.025 ≤0.025 11.0-12.5 0.50-1.00 0.90-1.25 0.20-0.30 0.90-1.25 ≤0.05 ≤0.05 Tin: ≤0.04

Mechanical Properties of steel grade ASTM A437 B4CB

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)
378 (≥) 267 (≥) 24 14 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade ASTM A437 B4CB

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
24 - -     0.31 -  
341 938 - 41.3 224   -  
534 - 44 14.2   332 112

Heat Treatment of steel grade ASTM A437 B4CB

Heat treated : 1462°C - 1861°C

Technological Curves of steel grade ASTM A437 B4CB

Cross Reference Table (Equivalent Grade) of ASTM A437 B4CB

Grade Standard Country Application
ASTM A437 B4B ASTM USA Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1
ASTM A437 B4CB ASTM USA Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1
ASTM A437 B4D ASTM USA Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1
ASTM A437 B4B ASTM A437 B4D
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