Conrad Welding Supplies, located in Houston, USA, has built a solid reputation as a reliable manufacturer and supplier of AWS Class ER90S-B3 MIG and TIG Filler Metal. This product is specifically designed for welding chrome-moly steels, which are often used in high-temperature and high-pressure environments. It’s particularly effective for joining 2.25% Cr – 1% Mo steels, materials you’ll frequently find in power plants, refineries, and pressure vessels. With its consistent arc performance, clean weld finish, and outstanding mechanical properties, Conrad’s ER90S-B3 wire meets the rigorous standards set by ASME codes and other industrial welding guidelines.
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ER90S-B3 is a low-alloy steel filler metal that typically contains about 0.10% carbon, 2.0–2.5% chromium, and 0.9–1.2% molybdenum. It boasts impressive tensile strength, ranging from 90–100 ksi, and maintains excellent creep resistance and structural stability even at elevated temperatures. The wire is also enhanced with silicon and manganese, which help with deoxidation and ensure sound welds that have a good bead shape and minimal spatter. It performs exceptionally well in both MIG and TIG processes, offering deep penetration and smooth arc characteristics on chrome-moly base metals.
| Classification | AWS A5.28, ER90S-B3 |
| Form | MIG spools, TIG cut lengths, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Standard TIG straight lengths are available | 36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request. |
| AWS A5.28, ER90S-B3 MIG & TIG Filler Metal Application & uses |
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Conrad Welding Supplies is a leading manufacturer and distributor of MIG & TIG welding filler metal rods and wires, including AWS Class ER90S-B3, based in Houston , USA. Our high-performance welding solutions are made from premium materials to ensure exceptional strength, weldability, and durability. The ER90S-B3 filler metal is ideal for critical applications in industries such as power plants, pressure vessels, and structural welding. With a commitment to timely delivery and outstanding customer service, Conrad Welding Supplies provides top-quality materials that guarantee superior performance and reliability in high-temperature environments.
|
Carbon (C) |
0.08 |
|
Chromium (Cr) |
2.50 |
|
Copper (Cu) |
0.12 |
|
Manganese (Mn) |
0.60 |
|
Molybdenum (Mo) |
1.00 |
|
Phosphorous (P) |
0.01 |
|
Silicon (Si) |
0.60 |
|
Sulfur (S) |
0.01 |
|
TENSILE STRENGTH 650 MPA |
94,500 PSI |
|
YIELD STRENGTH 550 MPA |
80,500 PSI |
|
ELONGATION IN 2” |
19% |
|
IMPACT STRENGTH @ 68°F |
80 ft. lbs |
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You’ll often find ER90S-B3 filler metal being used in the fabrication and repair of boilers, heat exchangers, pressure vessels, and piping systems that operate under high temperature and pressure. It’s particularly well-suited for applications in power generation, petrochemical processing, and oil refining, where strong, creep-resistant welds are essential. Additionally, this filler metal is used for welding ASTM A387 Grade 22 and similar alloys. Thanks to its excellent mechanical and metallurgical properties, ER90S-B3 ensures reliable weld joints that meet critical performance and safety standards throughout an extended service life.
We provide high-quality electrodes, filler wire, MIG and TIG welding wires to a wide range of industries, including oil and gas, food, marine, petrochemical, power generation, and aerospace.
Conrad Welding Supplies is a leading manufacturer, supplier and exporter of high-quality Coated Electrodes, Flux Core, MIG & TIG wires, SAW & Flux, Welding Wires, and Filler Wires, catering to various industries in Houston , USA
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