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A 193 B8M2 Class 2

Description

USA SAE A 193/A 193M (2012), A 193 B8M2 Class 2 Specialsteel Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 193 B8M2 Class 2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 193 B8M2 Class 2 Precipitation-Hardening SAE USA Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications

Chemical composition(mass fraction)(wt.%) of the A 193 B8M2 Class 2

C Si Mn Ni Cr Al Cu Ti Fe Mo Co Ta Zr W
≤0.13 ≤ ≥ ≤ ≥ ≤ ≥ ≤5.70 ≤6.30 ≤ ≥ ≤ ≥ ≤ ≥ ≤2.00 ≤ ≥ ≤3.00 ≤0.60 ≤11.00

Mechanical Properties of steel grade A 193 B8M2 Class 2

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)
347 (≥) 215 (≥) 23 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade A 193 B8M2 Class 2

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
21 - -     0.12 -  
411 258 - 23.3 122   -  
642 - 24 42.2   343 434

Heat Treatment of steel grade A 193 B8M2 Class 2

Heat treated : 1644°C - 1924°C

Technological Curves of steel grade A 193 B8M2 Class 2

Cross Reference Table (Equivalent Grade) of A 193 B8M2 Class 2

Grade Standard Country Application
M-22

Relevant standard of A 193 B8M2 Class 2

A 193/A 193M (2012) Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications A-193-A-193M-(2012).pdf

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