SA-299 Grade B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-299 Grade B

AMS SA-299 Grade B

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This page is mainly introduced the SA-299 Grade B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-299 Grade B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Pressure Vessel Plates, Carbon Steel, Manganese-Silicon

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08  0.15
Si   0.75
Mn 1.00  2.00
P  
S   0.03
Ni 8.50  10.50
Cr 27.00  31.00
Al  
Cu   0.50
Ti  
Fe  
N  
Mo   0.50

Mechanical Properties

Tensile strength 910~742 σb/MPa
Yield Strength 138 σ 0.2 ≥/MPa
Elongation 01 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 934~688 -
HRC 30 -

Physical Properties

Thermal expansion 91-73 e-6/K
Thermal conductivity 94-74 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4214-4499 째C
Density 4299-3184 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-299 Grade B 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