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 106~104 σb/MPa
Yield Strength 143 σ 0.2 ≥/MPa
Elongation 61 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 956~921 -
HRC 30 -

Physical Properties

Thermal expansion 86-64 e-6/K
Thermal conductivity 07-01 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8018-5858 째C
Density 3646-1679 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