Conra Welding Supplies, located in Houston, USA, stands out as a top manufacturer and supplier of premium welding consumables, including AWS Class ERCu MIG and TIG filler metals. With a strong commitment to performance, consistency, and reliability, Conra caters to various industries like plumbing, HVAC, automotive, and general fabrication. Their ERCu filler metal is specifically designed for welding pure copper and copper alloys, ensuring outstanding electrical and thermal conductivity in the final welds. With years of experience and a customer-first mindset, Conra Welding Supplies has earned a reputation as a trusted partner for both large-scale industrial projects and precision welding tasks across the United States.
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AWS Class ERCu MIG and TIG Filler Metal is basically copper-based with small percentages of phosphorus, tin, and zinc. The typical composition is 99% copper, with trace amounts of phosphorus (0.015-0.060%) and other elements depending on the alloy. It has excellent mechanical properties, such as high tensile strength, good ductility, and outstanding resistance to corrosion and oxidation. This filler metal is excellent for forming strong, conductive welds in copper and copper-alloy applications, yielding long-lasting, reliable welds under a wide range of conditions.
| Classification | AWS A5.7, ERCu |
| 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 ERCu MIG & TIG Filler Metal Application & uses |
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AWS Class ERCu is a copper-based MIG and TIG filler metal, made up of at least 98% pure copper. It contains very few impurities, with only trace amounts of elements like phosphorus and silver, depending on the specific grade. Its mechanical properties boast a tensile strength ranging from about 30,000 to 50,000 psi (205 to 345 MPa), along with excellent ductility and high thermal and electrical conductivity. ERCu also provides good corrosion resistance in non-oxidizing environments. It creates smooth, porosity-free welds and is perfect for joining base materials with similar compositions or for overlays where conductivity is crucial.
| Sn | Mn | Si | P | Al | Pb | Other |
| 1.0 | 0.50 | 0.50 | 0.15 | 0.01 | 0.02 | 0.50 |
| Tensile Strength, kpsi: | 8 |
| Yield Strength, kpsi: | 29 |
| Elongation in 2” (%): | 29 |
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AWS Class ERCu MIG and TIG filler metals are commonly used for welding pure copper in situations where electrical and thermal conductivity are vital. Typical applications include electrical bus bars, copper piping, heat exchangers, conductor bars, and decorative architectural elements. It’s also effective for overlaying carbon steels to enhance corrosion resistance. ERCu is favored in sectors like electrical manufacturing, HVAC, refrigeration, and plumbing. Its high conductivity and smooth arc characteristics make it suitable for both automated and manual welding processes. Conra Welding Supplies guarantees consistent quality in every product they offer.
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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