Copyright Goodheart-Willcox Co., Inc. 130 Gas Tungsten Arc Welding Handbook Solid Wires for HSLA Steel Per AWS 15.28 Classification Compositiona,b Characteristics, Applications C Mn Si P S Ni Cr Mo V Cu Cr-Mo ER80S-B2 0.07– 0.12 Use to weld 1/2 Cr-1/2 Mo, 1 Cr-1/2 Mo, 1-1/4 Cr-1/2 Mo steels for high- temperature and corrosive service and for Cr-Mo to carbon-steel welds. Lower carbon content improves resistance to cracking. Use where postweld heat treatment is not performed. Use for 2-1/4 Cr-1 Mo steel for high-temperature high-pressure piping and vessels. For all Cr-Mo-to-carbon-steel joints. Lower carbon content improves resistance to cracking. Use where postweld heat treatment is not performed. Use to weld HSLA steels and nickel steels up to 3-1/2%. Gives high strength and good toughness down to -100°F (-73°C). High Mn and Si contents reduce porosity. For single and multipass welding of carbon and low-alloy steels. Use on S-bearing (free machining) steel. Farm implements, auto parts, light-gauge steel, AISI 4130, T-1. High-strength, tough weld metal for critical welds. HY80, HY100 and higher-strength steels, structural applications for service as low as -60°F (-51°C). ER80S-B2L 0.05 0.40– 0.40– 0.025 0.025 0.20 1.20– 0.40– – 0.35 0.70 0.70 1.50 0.65 ER90S-B3 0.07– 2.30– 0.90– 0.12 2.70 1.20 ER90S-B3L 0.05 2.30– 0.90– 2.70 1.20 Ni steel ER80S-Ni3 0.12 1.25 0.40– 0.25 0.25 3.00– – – – – 0.80 3.75 Mn-Mo ER80S-D2 0.07– 1.60– 0.50– 0.025 0.025 0.15 – 0.40– – 0.50 0.12 2.10 0.80 0.60 Otherd ER100S-1 0.08 1.25– 0.20– – – 1.40– 0.30 0.25– 0.05 0.25 1.80 0.50 2.10 0.55 ER100S-2 0.12 1.25– 0.20– 0.010 0.010 0.80– 0.30 0.20– 0.05 0.35– 1.80 0.60 1.25 0.55 0.65 ER110S-1 0.09 1.40– 0.20– 1.90– 0.50 0.25– 0.04 0.25 1.80 0.55 2.60 0.55 ER120S-1 0.10 1.40– 0.25– 2.00– 0.60 0.30– 0.03 0.25 1.80 0.60 2.80 0.65 ERXXS-Gc 1.20– 0.40– 1.50 0.65 a. As manufactured. b. Total other elements, 0.50. c. Minimum 0.50 nickel, 0.30 chromium, or 0.20 molybdenum. d. Ti, Zr, Al, 0.10 each, except –G wires. Figure 8-2. The letters HSLA identify the steels as high-strength, low-alloy materials.