ER90S-B3 is for welding 2 1/4 chrome, 1 moly steels, frequently piping in the petroleum industry and for elevated temperature service, Preheat is necessary and a post-weld heat treatment is usually required.

AWS Specification           
A5.28 - 79

AWS Classification            
ER90S-B3

Welding Current
GMAW-DCEP

Typical Wire Certification
C         0.08
Si        0.60
Mn       0.60
Cr        2.50
Mo       1.00

Typical Mechanical Properties (As Welded)
Yield Strength, psi . . . . . . . . . . . . 78,000
Tensile Strength, psi . . . . . . . . . . 90,000
% Elongation in 2” . . . . . . . . . . . . . . . 17

Welding Positions
All

Shielding Gas
CO2 or Ar/O₂ mix

Available Diameters
Spooled: .035”, & .045”
36” lengths: .035”, .045”, 1/16”, 3/32”, 1/8” & 5/32”

Operating Range in Diameters
.035”    100 – 150
.045”    150 – 200

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