DIPTI METAL INDUSTRIES
Leading ER347Si TIG Rod Stockist, ER347Si Supplier & ER347Si Exporter in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the globally recognized ER347Si Supplier and the primary ER347Si Stockist of premium Niobium-stabilized high-silicon welding consumables in Mumbai, India. ER347Si is a specialized filler metal engineered for welding AISI 347 and 321 base metals. It contains Niobium (Columbium) to prevent intergranular chromium carbide precipitation, ensuring maximum corrosion resistance in service temperatures up to 800°C. The elevated Silicon (Si) content (typically 0.65% to 1.00%) significantly improves arc stability and puddle fluidity, making it the definitive choice for precision manual and automated TIG welding. As a premier ER347Si Exporter, we supply certified rods to aerospace, refinery, and nuclear engineering sectors across 75+ countries.
🏭 Strategic High-Silicon Fluidity for High-Temp Joints
As a leading ER347Si Supplier in Mumbai, we address the critical need for productivity and weld integrity in thermal cycling environments. The addition of Silicon in ER347Si acts as a deoxidizer and reduces surface tension in the molten weld pool. This allows the filler metal to "wet" the joint edges more effectively, resulting in a cleaner bead transition and reducing the risk of undercuts. This is particularly vital for equipment such as aircraft exhaust manifolds and high-temperature chemical reactors where weld aesthetics and structural durability are paramount.
The ER347Si Technical Edge
- Niobium stabilization prevents intergranular "weld decay"
- Superior puddle fluidity for smoother bead finishes
- Excellent creep strength and mechanical stability at high temps
- Enhanced arc stability for high-speed automated lines
Critical Industry Solutions
- Aerospace: Exhaust collectors and jet engine parts.
- Petrochemical: High-temperature reactors and vessels.
- Nuclear: Structural welding in heat-affected zones.
- Refineries: Flare stacks and heat exchangers.
📘 Technical Profile: ER347Si (AWS A5.9) Filler Metal
Typical Chemical Composition (%)
| Element | Typical Range |
|---|---|
| Carbon (C) | 0.08 Max |
| Chromium (Cr) | 19.0 - 21.5 |
| Nickel (Ni) | 9.0 - 11.0 |
| Silicon (Si) | 0.65 - 1.00 |
| Niobium (Nb) | 10 x C to 1.00 |
| Manganese (Mn) | 1.0 - 2.5 |
Mechanical Properties (Typical)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 590 MPa (85 ksi) |
| Yield Strength | ≥ 420 MPa (61 ksi) |
| Elongation (%) | ≥ 30% |
| Service Temp | Up to 800°C (1470°F) |
Certified to AWS A5.9 ER347Si. Supplied with full 3.1 Mill Test Certification and Heat Traceability.
Inventory Availability & Export Standards
- 1.20 mm (0.045")
- 1.60 mm (1/16")
- 2.00 mm (5/64")
- 2.40 mm (3/32")
- 3.20 mm (1/8")
- Length: 1000mm (Standard Cut Length)
Maintaining material purity for international aerospace and energy hubs:
- 5kg (11lb) / 10kg (22lb) moisture-proof plastic tubes.
- Individually embossed Heat Number and Grade on every rod.
- VCI vapor-barrier protection for anti-rust sea transit.
- ISPM-15 wooden boxes for international air/ocean shipments.
Global Supply Network for ER347Si Consumables
As an established ER347Si Exporter, Dipti Metal Industries maintains a seamless logistics network from Mumbai to global high-temperature energy hubs.
- Americas: USA, Canada, Brazil, Mexico.
- Middle East: UAE, Saudi Arabia, Kuwait, Oman, Qatar.
- Europe: Germany, UK, Netherlands, Norway, Italy, France.
- Asia: Singapore, Australia, Vietnam, Japan, South Korea.
Request a Quote for ER347Si TIG Welding Rods
📍 Contact Dipti Metal Industries
Headquarters & Global Hub
Dipti Metal Industries (A KMR Group Company)
No.9, Shreepati Castle, D-1, 10–11th Khetwadi Back Road, Mumbai – 400004, India
Phone: +91-22-66381301
WhatsApp: +91-9975266499