AWS A5.28 ER80S-B3L
Chromium-Molybdenum Steel Electrodes and Rods — ER80S-B3L
ER80S-B3L
ER80S-B3L [ER55-B3L] are identical to type ER90S-B3 [ER62S-B3] except for the low-carbon content (0.05 percent maximum) and, therefore, the lower strength levels. These alloys exhibit greater resistance to cracking and are more suitable for welds to be left in the as-welded condition. This classification was previously ER90S-B3L in the AWS A5.28-79 specification. The strength requirements and classification designator have been changed to reflect the true strength capabilities of the chemical composition.
| Nominal Chemical Composition (%) | Tensile Strength | Yield Strength | Elongation | Average Impact Strength | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Ni | Cr | Mo | V | Ti | Zr | Al | Cu | TOE | psi (min) | MPa (min) | psi (min) | MPa (min) | % (min) | 20 ft•lbf @ |
| 0.05 max | 0.40-0.70 | 0.40-0.70 | 0.025 max | 0.025 max | 0.20 max | 2.30-2.70 | 0.90-1.20 | – | – | – | – | 0.35 max | 0.50 max | 80,000 | 550 | 68,000 | 470 | 17 | Not Required |