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 Classification | ER90S-B3 |
| Filler Type | TIG welding rod |
| Alloy Content | 2.25% chromium, 1% molybdenum |
| Service Conditions | High-temperature, high-pressure |
| Typical Applications | Power generation, petrochemical, boilers, pressure vessels, heat exchangers |
Part Number & Size Reference
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