ER90S-B3
Class: ER90S-B3
AWS: A5.28
Conforms to Certification: AWS A5.28 | ASME SFA A5.28
Weld Process: Tig (GTAW) Welding Processes
| AWS Chemical Composition Requirements | |
| C = 0.07 – 0.12 | Mn = 0.40 – 0.70 |
| Si = 0.40 – 0.70 | P = 0.025 max |
| S = 0.025 max | Ni = 0.20 max |
| Cr = 2.30 – 2.70 | Mo = 0.90 – 1.20 |
| Cu = 0.35 max | Other = 0.50 max |
Available Sizes
.030 x 36
.035 x 36
.045 x 36
1/16 x 36
3/32 x 36
1/8 x 36
3/16 x 36
5/32 x 36
Application
ER90S-B3 is for welding 2¼ chrome, 1 moly steels, pipe material in the petroleum industry for elevated temperature service. Requires controlled preheat, inter-pass and post weld treatment.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.10 | P = 0.009 | Cr = 2.55 |
| Mn = 0.62 | S = 0.008 | Mo = 1.08 |
| Si = 0.48 | Ni = 0.06 | Cu = 0.12 |
| Deposited All Weld Metal Properties % (AW) | |
| Tensile Strength | 94,000 psi |
| Yield Strength | 80,500 psi |
| Elongation | 19% |
Deposited Charpy-V-Notch Impact Properties %
At +68ºF 80 ft. lbs.
Available Sizes & Recommended Welding Parameters |
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| Process | Diameter of Wire | Voltage (V) | Amperage (A) | Gas |
| Tig | .035 inches x 36 | 10 – 12 | 50 – 70 | 100% Argon |
| .045 inches x 36 | 10 – 12 | 70 – 100 | 100% Argon | |
| 1/16 inches x 36 | 12 – 15 | 100 – 125 | 100% Argon | |
| 3/32 inches x 36 | 15 – 20 | 125 – 175 | 100% Argon | |
| 1/8 inches x 36 | 15 – 20 | 175 – 250 | 100% Argon | |