Esab Tigrod ER80S-B8 description: ER80S-B8 is a non-copper-coated solid wire for TIG welding requiring creep strength. This 9% Chromium - 1% Molybdenum TIG rod is used to weld 9% Chromium - 1% Molybdenum steels (ASTM Section IX, P No 5B, Group 1) such as ASTM A335 Grade P9 or ASTM A213 Grade T9. Tigrod products are embossed on opposite ends with the alloy identification.