ER 308 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ER 308

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International ER 308

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This page is mainly introduced the ER 308 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ER 308,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Bare Stainless Steel Welding Electrodes and Rods
  • Steel Garde:ER 308
  • Type:Stainless Steels
  • Country:USA
  • Standard:International
  • Standard Number:
    ITEM Standard Number Descriptions
    1 A5.9/A5.9M Bare Stainless Steel Welding Electrodes and Rods
  • Metallographic Structure:Austenite
  • Application:Bare Stainless Steel Welding Electrodes and Rods

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
Cu   0.75
Mo   0.75

Mechanical Properties

Tensile strength 077~140 σb/MPa
Yield Strength 878 σ 0.2 ≥/MPa
Elongation 24 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 954~133 -
HRC 30 -

Physical Properties

Thermal expansion 67-78 e-6/K
Thermal conductivity 88-45 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7699-7109 째C
Density 3462-5435 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)
ER 308 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