Virami Steel Hub is a leading manufacturer, supplier, stockist, and exporter of SS 347 Wires in Mumbai, India. We supply premium-quality Stainless Steel 347 wires in various diameters, finishes, and specifications to meet the requirements of petrochemical, oil & gas, power generation, aerospace, and heat-processing industries.
Our SS 347 wires are supplied across India and exported globally to the USA, Europe, the Middle East, Africa, and Southeast Asia. We ensure strict adherence to international quality standards and provide reliable worldwide delivery.
Stainless Steel 347 Wires are columbium (niobium)-stabilized austenitic stainless steel wire products designed for high-temperature and welded applications. Grade 347 is similar to 304 stainless steel but stabilized with niobium (Nb) to prevent chromium carbide precipitation.
The stabilization with niobium improves resistance to intergranular corrosion after exposure to elevated temperatures, especially in the range of 425°C to 870°C.
SS 347 wires are widely used in applications requiring strong corrosion resistance combined with high-temperature strength.
Key Features of SS 347 Wires
These features make SS 347 wires particularly suitable for high-temperature and pressure applications.
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 |
| Niobium (Nb) + Tantalum (Ta) | 10xC min – 1.0 max |
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 1.0 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.03 max |
| Iron (Fe) | Balance |
Role of Key Elements
The addition of niobium is the key differentiating factor between 347 and 304 stainless steel.
SS 347 wires offer reliable mechanical strength:
Cold working increases strength and hardness while reducing ductility. The grade also offers better creep resistance compared to 304.
These properties ensure dimensional stability and structural integrity at elevated temperatures.
SS 347 wires provide excellent resistance to:
Compared to 304, SS 347 offers improved resistance to carbide precipitation during welding and high-temperature service. It performs exceptionally well in environments where components are exposed to prolonged heating.
Stainless Steel 347 cannot be hardened by heat treatment and is typically supplied in annealed or cold-worked condition.
Annealing Process:
Annealing restores ductility and enhances corrosion resistance.
SS 347 wires exhibit excellent weldability.
Niobium stabilization reduces the risk of intergranular corrosion in the heat-affected zone.
SS 347 has moderate machinability.
Recommendations:
Proper machining practices ensure smooth surface finish and dimensional accuracy.
SS 347 wires are manufactured according to international standards:
Standards:
Size Range:
Surface Finishes:
Custom sizes and finishes are available as per client requirements.
Due to high-temperature stability and corrosion resistance, SS 347 wires are widely used in:
Petrochemical Industry
Oil & Gas Industry
Power Generation
Aerospace Industry
Chemical Processing
Its improved creep resistance makes SS 347 ideal for continuous high-temperature service.
These benefits make SS 347 wires a preferred choice for heat-intensive industrial applications.
At Virami Steel Hub, SS 347 wires undergo comprehensive quality control procedures:
Mill Test Certificates (MTC) are provided in accordance with ASTM and ASME standards. Third-party inspections can be arranged upon request.
To ensure safe transport and storage, SS 347 wires are:
We ensure prompt dispatch and secure worldwide shipping.
Our commitment to quality, reliability, and customer satisfaction makes us a preferred supplier worldwide.
Stainless Steel 347 Wires are niobium-stabilized austenitic stainless steel products designed for high-temperature and welded applications. With excellent resistance to intergranular corrosion, improved creep strength, and superior oxidation resistance, SS 347 wires are widely used in petrochemical, power generation, aerospace, and heavy industrial sectors.
Virami Steel Hub supplies certified SS 347 wires in various sizes and specifications, ensuring durability, reliability, and long-term performance in demanding high-temperature industrial environments worldwide.
