Conra Welding Supplies is a reputable manufacturer and supplier located in Houston, USA, focusing on top-notch stainless steel ER307 filler wires. With a strong dedication to providing dependable welding solutions, Conra serves a variety of industries, including construction, automotive, shipbuilding, and heavy machinery. Renowned for their consistent quality and performance, their ER307 filler wires are produced using cutting-edge technology and rigorous quality control measures. Customers throughout the USA trust Conra for prompt delivery, expert technical support, and a wide array of welding products that comply with both national and international standards.
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Classification : AWS A5.9 ER-307, A5.9M:2006
Soft Wire Diameter Range : 0.06mm – 2.30 mm
Hard Wire Diameter Range : 0.30mm – 3.00mm
Diameter : .035”, .045”, 1/16”, 3/32”, 1/8”, 5/32”
Length : 36″ (914mm) Customized
Materials : 307 Stainless Steel
Form : Filler Wires
Stainless steel ER307 filler wires typically have a chemical makeup that includes 18-20% chromium, 8-10% nickel, and 4-6% manganese, along with low carbon content to ensure excellent corrosion resistance and weldability. These wires boast a tensile strength of about 550 MPa, an elongation of roughly 30%, and impressive impact toughness. The high manganese content helps minimize cracking and boosts ductility, making them perfect for joining different metals, like stainless steel to carbon steel. Their mechanical and chemical properties are designed to create strong, durable welds even in tough environments.
| Weight% | C | Cr | Ni | Mo | Mn | Si | P | S | N | Cu |
| ER 307 | 0.04-0.14 | 19.5-22.0 | 8.0-10.7 | 0.5-1.5 | 3.3-4.75 | 0.30-0.65 | 0.03 | 0.03 | – | 0.75 |
| STANDARD | AWS | UNS | DIN | Class | EN | BS |
| SS ER 307 | A5.9 | S30780 | 1.4370 | ER307 / ER307Si | 18 8 Mn | 307S94 / 307S98 |
| 0.2% proof stress, Rp0.2% | Tensile strength, Rm | Elongation, 4d/5d | Hardness, HV |
| ≥500MPa. | ≥25% | ≥350MPa. | ~200HV as-deposited ~400HV work-hardened |
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Conrad Welding Supplies is a prominent manufacturer and supplier of top-tier Stainless Steel ER307 Filler Wires in Houston , USA. We specialize in providing advanced welding solutions and offer a wide range of products, including coated electrodes, welding electrodes, flux core, MIG & TIG welding wires, SAW flux, and filler wires. Known for reliable delivery and outstanding customer service, we are committed to offering high-quality welding materials that ensure durability and optimal performance for various industrial applications. Our dedication to excellence has made us a trusted partner for all your welding needs.
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These stainless steel ER307 filler wires are commonly used in situations where welding dissimilar metals is necessary, especially in sectors like petrochemical, shipbuilding, railways, and heavy machinery. They excel at joining stainless steel to mild steel, providing robust welds with outstanding resistance to heat and corrosion. These wires perform admirably under high-stress conditions and are also utilized in the construction of storage tanks, pressure vessels, and piping systems. Their versatility and performance make them a go-to choice for critical structural and maintenance welding tasks across various industries.
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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