ER 308 Stainless Steels to A5.9/A5.9M

ER 308 - Specification & Application

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

Bare Stainless Steel Welding Electrodes and Rods

Chemical composition(wt.%) of ER 308 grade: to A5.9/A5.9M

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

ER 308 - Detail

Bare Stainless Steel Welding Electrodes and Rods

Mechanical properties of grade ER 308 A5.9/A5.9M

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
678 (≥) 328 (≥) 41 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical properties of grade ER 308 A5.9/A5.9M

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
755 (≥) 162 (≥) 23 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 122
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
717 632 457

Equivalent Products

We can customize the production of ER 308 grade, contact us for the best solution.
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