SA-193 Grade B8M2 Class 2B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-193 Grade B8M2 Class 2B

AMS SA-193 Grade B8M2 Class 2B

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This page is mainly introduced the SA-193 Grade B8M2 Class 2B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-193 Grade B8M2 Class 2B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for Alloy Steel and Stainless Steel Bolting Materials for High-Temperature Service

Cross Reference Table(Equivalent Materials):

Material Standard Country
A 193 B8M2 Class 2 SAE USA
A 193 B8M2 Class 2B SAE USA
B 388 TM22 SAE USA
B 883 MIM-2200 SAE USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.13
Si  
Mn  
Ni  
Cr   5.70
Al   6.30
Cu  
Ti  
Fe  
Mo   2.00
Co  
Ta   3.00
Zr   0.60
W   11.00

Mechanical Properties

Tensile strength 053~081 σb/MPa
Yield Strength 646 σ 0.2 ≥/MPa
Elongation 30 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 120~590 -
HRC 30 -

Physical Properties

Thermal expansion 65-80 e-6/K
Thermal conductivity 44-27 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8613-2863 째C
Density 8726-9940 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
SA-193 Grade B8M2 Class 2B Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download