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ER90S-B3 chrome-moly TIG welding rod - MapleWeld
ER90S-B3 chrome-moly TIG welding rod - MapleWeld

ER90S-B3 Steel TIG Welding Rods

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Unibraze
|
MW90SB3332
$196.00 $0.00( / )
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QTY Discount
2+ 3%
10+ 5%
20+ 7%
  • 1/16 inch (1.6mm) 10lbs.
  • 3/32 inch (2.4mm) 10lbs.
  • 1/8 inch (3.2mm) 10lbs.
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ER90S-B3 Steel TIG Welding Rods

ER90S-B3 TIG rods are designed for TIG welding applications that involve high-temperature service conditions and require exceptional strength and toughness. Crafted from a low-alloy steel containing 2.25% chromium and 1% molybdenum, they're highly effective for welding creep-resistant steels used in high-pressure, high-temperature environments such as power generation and petrochemical industries. They offer excellent resistance to oxidation and corrosion at elevated temperatures, ensuring durable, long-lasting welds, and are particularly suited to repairing and constructing boilers, pressure vessels, and heat exchangers. Available in 1/16", 3/32", and 1/8" diameters.

Key Features

  • Low-alloy steel with 2.25% chromium and 1% molybdenum
  • Highly effective for welding creep-resistant steels
  • Excellent resistance to oxidation and corrosion at elevated temperatures
  • Durable, long-lasting welds in high-pressure, high-temperature service
  • Stable arc, smooth flow, and a clean finish
  • Suited to boiler, pressure vessel, and heat exchanger repair and construction

Technical Specifications

AWS ClassificationER90S-B3
Filler TypeTIG welding rod
Alloy Content2.25% chromium, 1% molybdenum
Service ConditionsHigh-temperature, high-pressure
Typical ApplicationsPower generation, petrochemical, boilers, pressure vessels, heat exchangers

Part Number & Size Reference

1/16" (1.6mm) 10lbs. – SKU MW90SB3116 – $199.00 CAD
3/32" (2.4mm) 10lbs. – SKU MW90SB3332 – $196.00 CAD
1/8" (3.2mm) 10lbs. – SKU MW90SB318 – $194.00 CAD

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