ER90S-B3 (GTAW) TIG

Description: Low Alloy Steel

For welding 2-1/4” Cr - 1 Mo Steels used for high pressure piping and pressure vessels; also used for joining dissimilar combinations of Cr-Mo and carbon steels.

DETAILS
TECHNICAL
RESOURCES

Procedure:
- DC- straight polarity
- Shielding gas - Argon
- Tungsten - 2% Thoriated
Part Number Size
90SB3F8 .035” 33# Spool
90SB3H8 .045” 33# Spool
90SB350 3/32” x 36” - 10# Box
90SB360 1/8” x 36” - 10# Box

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Chemical Composition AWS
Si - 0.4-0.7%
Mn - 0.4-0.7%
Cr - 0.2%
P - 0.025%
C - 0.07-0.12%
Mo - 0.9-1.2%
S - 0.25%
Ni - 2.3-2.7%
AWS 5.28, ER90S-B3

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