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SA-193 Grade B8M2 Class 2B

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B 883 MIM-2200 M-252
#M-22

Description

USA AMS SA-193/SA-193M, SA-193 Grade B8M2 Class 2B Specialsteel Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-193 Grade B8M2 Class 2B
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-193 Grade B8M2 Class 2B Precipitation-Hardening AMS USA Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service

Chemical composition(mass fraction)(wt.%) of the SA-193 Grade 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 SA-193 Grade 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)
286 (≥) 857 (≥) 33 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade SA-193 Grade 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
22 - -     0.44 -  
169 714 - 11.3 323   -  
768 - 33 22.2   311 343

Heat Treatment of steel grade SA-193 Grade B8M2 Class 2B

Heat treated : 1943°C - 1598°C

Technological Curves of steel grade SA-193 Grade B8M2 Class 2B

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

Grade Standard Country Application
M-22

Relevant standard of SA-193 Grade B8M2 Class 2B

SA-193/SA-193M Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service SA-193-SA-193M.pdf
B 883 MIM-2200 M-252
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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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