Harris Products Group, 90SB3H8, Welding Alloy, Low Alloy Steel, ER90S-B3, For High-Pressure Piping, GMAW

ER90S-B3 low alloy steel MIG (GMAW) for welding 2-1/4 in. chromium-molybdenum steels used in high-pressure piping and pressure vessels. Also, used for joining dissimilar combinations of chromium-molybdenum and carbon steels. Conforms to AWS 5.28, ER90S-B3.

Features

• Control pre-heat, inter-pass and post heat to avoid cracking
• General purpose MIG (GMAW) welding wire for chromium and molybdenum low-alloy steel
• Welds 2-1/4% chromium/1% molybdenum steel alloys
• Use with pre-heat and inter-pass temperature of 375◦F min. (191◦C min.)
• Joining carbon steels to chromium-molybdenum steels
• Often used in high temperature and high-pressure piping vessels
• Conforms to AISI/AWS A5.28 & ASME SFA 5.28 ER 90S-B3

• Weight: 1.05 lbs
• Material: Low Alloy Steel, Chromium, Molybdenum
• Steel Alloy Composition: 2.3-2.7% Chromium, 0.9-1.2% Molybdenum
• Carbon Content: 0.07-0.12%
• Phosphorus: 0.025% max
• Copper: 0.50% max
• Manganese: 0.40-0.70%
• Sulfur: 0.025% max
• Nickel: 0.20% max
• Silicon: 0.40-0.70%
• Iron Balance: Balance
• Tensile Strength: 94,000 psi
• Yield Strength: 80,500 psi
• Elongation: 19% in 2 in
• Welding Method: GMAW (MIG)
• Preheat Temperature: 375 F minimum
• Compliance: AISI/AWS A5.28, ASME SFA 5.28 ER 90S-B3

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