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
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 |
TECHNICAL
| 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 |
