Conrad Welding Supplies, located in Houston, USA, stands out as a leading manufacturer and supplier of Hastelloy C-4 Coated Electrodes, specifically designed for precision welding in tough, high-temperature settings. These electrodes excel at welding nickel-chromium-molybdenum alloys, offering remarkable resistance to harsh oxidizing agents, high chloride levels, and stress corrosion cracking. Produced under strict quality standards and meeting AWS A5.11 ENiCrMo-7 guidelines, Conrad’s C-4 electrodes provide excellent arc stability, easy slag removal, and durable, crack-resistant weld deposits. They’re perfect for critical applications in industries like chemical, pharmaceutical, pulp & paper, and nuclear, where corrosion resistance is absolutely essential.
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| Classification | AWS A5.11, ENiCrMo-7 |
| Form | Welding Electrode, Welding Rods |
| Type Of Current | Direct Current Electrode Positive (DCEP) |
| Diameters | 3/32”, 1/8”, 5/32”, 3/16” or 2.5mm, Ø 3.2mm, Ø 4.0mm, Ø 5.0mm |
| Size | 2.0mm ∞ 5.0mm |
| AC/DC+ | 50-80, 80-110, 100-135, 140-180 |
| Welding Positions | All positions 5/32” & 3/16” recommended for use in flat & horizontal positions only (F, V, OH, H) |
| HASTELLOY® C-4 Coated Electrodes Application & uses |
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Hastelloy C-4 Coated Electrodes are made up of about 65% nickel, 15–20% chromium, 14–17% molybdenum, along with trace amounts of iron, cobalt, and carbon (≤0.015%). This unique blend ensures exceptional resistance to strong oxidizers, pitting, and intergranular corrosion. The weld metal typically shows a tensile strength of at least 690 MPa, yield strength of at least 370 MPa, and an elongation of at least 30%. The metallurgy of the electrode provides outstanding mechanical strength and thermal stability across a broad temperature range, making them resistant to chloride-induced stress corrosion cracking, ideal for highly corrosive and thermally demanding environments.
| Nickel: | Balance |
|---|---|
| Chromium: | 14.0-18.0 |
| Molybdenum: | 14.0-17.0 |
| Iron: | 3.0 max. |
| Cobalt: | 2.0 max. |
| Manganese: | 1.5 max. |
| Titanium: | 0.70 max. |
| Copper: | 0.50 max. |
| Other | 0.50 max. |
| Tungsten: | 0.50 max. |
| Silicon: | 0.20 max. |
| Phosphorus | 0.04 max. |
| Carbon: | 0.0015max. |
| Sulfur: | 0.03 max. |
| Tensile (psi) | 100,000 |
|---|---|
| Mpa | 690 |
| Elongation (%) | 25 |
| Class | UNS | Haynes |
| ENiCrMo-7 | W860675 | HASTELLOY® C-4 |
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Conrad Welding Supplies is a Top manufacturer and supplier of high-quality Hastelloy C-4 Coated Electrodes in Houston , USA. Specializing in welding solutions, we provide a wide range of products, including coated electrodes, welding electrodes, flux core, MIG & TIG welding wires, SAW flux and filler wires. Known for our reliable delivery and superior customer service, We are committed to offering top-tier welding materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your welding needs.
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Hastelloy C-4 Coated Electrodes are extensively utilized for welding chemical reactors, scrubbers, heat exchangers, evaporators, and pressure vessels that come into contact with ferric and cupric chlorides, as well as hot organic and inorganic acids and chlorinated solvents. They’re particularly well-suited for pharmaceutical processing, nuclear waste containment, pulp and paper bleaching systems, and marine applications, where corrosion resistance is crucial. These electrodes are perfect for both the repair and fabrication of Hastelloy components, ensuring reliability and durability in challenging environments.
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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