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A 193 B8M2 Class 2B

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A 193 B8M2 Class 2 B 388 TM22
#M-22

Description

USA SAE A 193/A 193M (2012), A 193 B8M2 Class 2B 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 2B
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 193 B8M2 Class 2B 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 2B

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 2B

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)
455 (≥) 169 (≥) 23 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade A 193 B8M2 Class 2B

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
14 - -     0.22 -  
774 425 - 21.3 221   -  
731 - 32 41.2   441 124

Heat Treatment of steel grade A 193 B8M2 Class 2B

Heat treated : 1358°C - 1486°C

Technological Curves of steel grade A 193 B8M2 Class 2B

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

Grade Standard Country Application
M-22

Relevant standard of A 193 B8M2 Class 2B

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
A 193 B8M2 Class 2 B 388 TM22
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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