Lincoln Excalibur 8018-B2 MR is an AWS A5.5/A5.5M E8018-B2 SMAW stick electrode family with 80 ksi minimum tensile and DC+ or AC, all positions operation. WeldingMart stocks 5 package and diameter variants of this grade, all sharing the same AWS classification - select the diameter and package format that fits your application below.
E8018-B2 is an AWS A5.5 low-alloy low-hydrogen SMAW electrode with 80 ksi minimum tensile and a 1.25 Cr / 0.5 Mo alloy composition for elevated-temperature service. It is the standard for welding 1.25 Cr-0.5 Mo (P11) piping and pressure vessels in power generation, refinery, and petrochemical service. Runs DC+ or AC in all positions; PWHT (post-weld heat treatment) is typically required for code work.
| AWS classification | AWS A5.5/A5.5M E8018-B2 |
|---|---|
| Minimum tensile | 80 ksi minimum |
| Polarity / position | DC+ or AC, all positions |
| Available diameters | 3/32 in through 1/4 in (varies by package) |
| Package formats | see size variants below |
- Brand-authorized distributor - factory-fresh stock, full warranty pass-through
- Multiple diameter and package variants in stock - select the SKU below that matches your job
- US warehouse fulfillment, 1 business day ship time
- 30-day returns on unopened cartons





