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Description

USA International A5.9/A5.9M, ER 308 Specialsteel Bare Stainless Steel Welding Electrodes and Rods and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: ER 308
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel ER 308 Austenite International USA Bare Stainless Steel Welding Electrodes and Rods

Chemical composition(mass fraction)(wt.%) of the ER 308

C Si Mn P S Cr Ni Cu Mo
≤0.08 0.25 -0.60 1.00 -2.50 ≤0.03 ≤0.03 19.5 -22.0 9.00 -11.0 ≤0.75 ≤0.75

Mechanical Properties of steel grade ER 308

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
376 (≥) 552 (≥) 32 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade ER 308

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
42 - -     0.42 -  
174 468 - 42.3 324   -  
596 - 23 24.2   434 343

Heat Treatment of steel grade ER 308

Heat treated : 1866°C - 1615°C

Technological Curves of steel grade ER 308

Cross Reference Table (Equivalent Grade) of ER 308

Relevant standard of ER 308

A5.9/A5.9M Bare Stainless Steel Welding Electrodes and Rods A5-9-A5-9M.pdf

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