SA-479 Type ER308 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-479 Type ER308

AMS SA-479 Type ER308

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This page is mainly introduced the SA-479 Type ER308 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-479 Type ER308,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SA-479/SA-479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
For extruded shapes a minimum tensile strength of 485 N/mm2 is permitted; Nominal composition: 20Cr–10Ni
  • Steel Garde:SA-479 Type ER308
  • Type:Stainless Steels
  • Country:USA
  • Standard:AMS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SA-479/SA-479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
  • Metallographic Structure:Austenite
  • Application:Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si 0.25  0.60
Mn 1.00  2.50
P   0.03
S   0.03
Cr 19.5  22.0
Ni 9.00  11.0

Mechanical Properties

Tensile strength 831~291 σb/MPa
Yield Strength 287 σ 0.2 ≥/MPa
Elongation 41 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 858~789 -
HRC 30 -

Physical Properties

Thermal expansion 92-40 e-6/K
Thermal conductivity 07-24 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0316-5391 째C
Density 5284-1758 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-479 Type ER308 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