ER 307 Stainless Steels to SFA-5.9/SFA-5.9M

ER 307 - Specification & Application

  • SFA-5.9/SFA-5.9M - Bare Stainless Steel Welding Electrodes and Rods

Bare Stainless Steel Welding Electrodes and Rods

Chemical composition(wt.%) of ER 307 grade: to SFA-5.9/SFA-5.9M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 1.00
Mn 3.75 4.75
P - 0.045
S - 0.03
Ni 9.00 10.50
Cr 19.00 22.00
Al - -
Cu - -
Ti - -
Fe - -
N - -
Mo - -
V - -

ER 307 - Detail

Bare Stainless Steel Welding Electrodes and Rods

Mechanical properties of grade ER 307 SFA-5.9/SFA-5.9M

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)
556 (≥) 666 (≥) 42 23 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical properties of grade ER 307 SFA-5.9/SFA-5.9M

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
521 (≥) 451 (≥) 14 24 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
972 651 247
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