ER80S-B6
AWS A5.28 ER80S-B6
80S-B6 is a low alloy Cr-Mo filler commonly used in the oil and chemical industries where base metal such as 5% Cr, 1/2% Mo steels are found. Typical base metals found in this group are ASTM grades: A182-F5/F5a, A336-F5/F5a, A199-T-5, A200-T5, A213-T5, A335-P5, A369-FP5, A426-CP5, A217-C5, and A387-Gr5. Controlled preheat, interpass and postheat treatment may be needed. 80S-B6 is similar to the previously classified ER502 in AWS A5.9-93.
USA 80S-B6 (502) is used for welding AISI type 502 stainless steels and 5% chrome moly steels.
TYPICAL WIRE CHEMISTRY (%)
- | ER80S-B6 | AWS Spec |
|---|---|---|
C | 0.10 max. | |
Mn | 0.40-0.70 | |
Si | 0.50 max. | |
P | 0.025 max. | |
S | 0.025 max. | |
Ni | 0.60 max. | |
Cr | 4.50-6.00 | |
Mo | 0.45-0.65 | |
Cu | 0.35 max. |
Typical mechanical properties of weld metal (C02 shielding gas)
- | ER80S-B6 | AWS Spec |
|---|---|---|
Yield strength (psi) | 68,000 min | |
Ultimate tensile strength (psi) | 80,000 min | |
Elongation in 2" (%) | 17 min | |
Charpy V-notch at 0 F (ft. lbs) | N/A |