ASTM A437 B4B

ASTM A437/A437M-12 - Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1

This page provides ASTM A437 B4B datasheet, ASTM A437 B4B mechanical properties, chemical element ASTM A437 B4B, technical specifications of ASTM A437 B4B steel material properties. ASTM A437 B4B performance specifications.

Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel ASTM A437 B4B ASTM USA Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service1
S960QL
1.8933
1.8940
S890Q
1.8983
S890QL
1.8941
S960Q
13CrMo44
ASP 2053
Datasheet for:Steel Grades:Special Steel:ASTM A437 B4B

Chemical composition(mass fraction)(wt.%) of the ASTM A437 B4B

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 / Mechanische Eigenschaften / Caracteristiques mecaniques of grade ASTM A437 B4B

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)
849 (≥) 242 (≥) 13 33 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 413
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 - -     0.22 -  
783 393 - 31.3 141   -  
888 - 22 34.2   332 131
Heat treated : 1356°C - 1332°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
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
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