SS 347 Stainless Steel Wire Manufacturer
Precision Alloy is a leading manufacturer and global supplier of SS 347 stainless steel wire, engineered for high-temperature, weld-intensive, and pressure-resistant applications. Manufactured to international standards like ASTM A580, ASME SA580, and EN 10088, SS 347 wire offers long-term durability, excellent resistance to intergranular corrosion, and stability under thermal cycling.
What is SS 347 Stainless Steel Wire?
SS 347 wire is a niobium (columbium)-stabilized austenitic stainless steel wire that resists weld decay, intergranular corrosion, and high-temperature oxidation. It performs well in applications involving frequent welding or exposure to temperatures above 800°C, making it an ideal choice for chemical processing, aerospace, thermal equipment, and refinery systems.
Available in soft, half-hard, and spring-hard conditions, SS 347 wire is supplied in coils, spools, or cut lengths.
SS 347 Stainless Steel Wire Specifications
| Property | Specification |
|---|---|
| Material Grade | SS 347 |
| UNS Number | S34700 |
| EN / WNR | 1.4550 / X6CrNiNb18-10 |
| Diameter Range | 0.10 mm – 10 mm |
| Tempers | Soft Annealed, Half-Hard, Spring-Hard |
| Forms | Coils, Spools, Straight Cut Lengths |
| Surface Finishes | Bright, Matte, Pickled, Electropolished |
| Standards | ASTM A580, ASME SA580, EN 10088, DIN 1.4550 |
Chemical Composition – SS 347 Stainless Steel Wire
| Element | % Composition |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 |
| Niobium (Nb) | ≥ 10x Carbon % |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
Mechanical Properties – SS 347 Stainless Steel Wire
| Property | Value |
|---|---|
| Tensile Strength | 550 – 800 MPa (depending on temper) |
| Yield Strength | 200 – 300 MPa |
| Elongation | 35–40% min |
| Hardness | Up to 95 HRB |
| Service Temperature | Up to 900°C |
Applications of SS 347 Stainless Steel Wire
SS 347 wire is best suited for environments with high heat, stress, or continuous welding, including:
Construction & Infrastructure
Automotive & Transportation
Marine & Offshore
Aerospace & Defence
Oil & Gas Industry
Manufacturing & Industrial Machinery
Why Choose Precision Alloy?
- ISO 9001:2015 Certified Manufacturer
- Wide Range of Stainless Steel Bar Shapes & Sizes in Stock
- Surface Finish Options for Decorative or Industrial Use
- Customized Machining & Fast Lead Times
- Global Delivery with Competitive Pricing
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