DIPTI METAL INDUSTRIES
Leading ER321 TIG Rod Stockist, ER321 Supplier & ER321 Exporter in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the primary ER321 Supplier and ER321 Stockist of titanium-stabilized stainless steel welding consumables in Mumbai, India. ER321 is a premium filler metal specifically alloyed with Titanium to prevent intergranular chromium carbide precipitation. This stabilization makes it the definitive choice for welding matching base metals like Type 321 and 321H, which are frequently used in high-temperature applications (425°C to 850°C) where standard fillers would be prone to corrosion. As a premier ER321 Exporter, we supply certified TIG rods to aerospace engineers, refinery fabricators, and exhaust system manufacturers across 75+ countries.
🏭 Strategic Stability for Extreme Thermal Environments
As a leading ER321 Supplier in Mumbai, we address the critical need for filler metals that maintain structural integrity during thermal cycling. The addition of Titanium in ER321 ensures that carbon is tied up as titanium carbides rather than chromium carbides, preserving the chromium content at the grain boundaries. This is vital for equipment such as aircraft exhaust stacks and high-temperature chemical reactors, where mechanical strength and corrosion resistance must be maintained at red-hot temperatures.
The ER321 Technical Edge
- Prevents intergranular corrosion (weld decay) in the HAZ
- Superior creep strength and mechanical stability at high temps
- Excellent oxidation resistance up to 850°C
- Clean-surface rods for X-ray quality TIG welds
High-Temperature Solutions
- Aerospace: Exhaust collectors and jet engine parts.
- Petrochemical: High-temperature reactors and vessels.
- Refineries: Flare stacks and heat exchangers.
- Power Plants: Superheater tubes and boiler components.
📘 Technical Profile: ER321 (AWS A5.9) Filler Metal
Typical Chemical Composition (%)
| Element | Typical Range |
|---|---|
| Carbon (C) | 0.08 Max |
| Chromium (Cr) | 18.5 - 20.5 |
| Nickel (Ni) | 9.0 - 10.5 |
| Titanium (Ti) | 9 x C to 1.00 |
| Manganese (Mn) | 1.0 - 2.5 |
| Silicon (Si) | 0.30 - 0.65 |
Mechanical Properties (As Welded)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 550 MPa (80 ksi) |
| Yield Strength | ≥ 350 MPa (51 ksi) |
| Elongation (%) | ≥ 30% |
| Service Temp | Up to 850°C (1560°F) |
Certified to AWS A5.9 ER321. Supplied with full 3.1 Mill Test Certification and Heat Traceability.
ER321 Inventory & Export Standards
- 1.60 mm (1/16")
- 2.00 mm (5/64")
- 2.40 mm (3/32")
- 3.20 mm (1/8")
- 4.00 mm (5/32")
- Standard Length: 1000mm
Ensuring 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 ER321 Consumables
As an established ER321 Exporter, Dipti Metal Industries maintains a seamless logistics network from Mumbai to global high-temperature energy hubs.
- Americas: USA, Canada, Brazil, Mexico.
- Middle East: Saudi Arabia, UAE, Kuwait, Oman, Qatar.
- Europe: Germany, UK, Netherlands, Norway, Italy.
- Asia/Pacific: Singapore, Australia, Vietnam, Japan, South Korea.
Request a Quote for ER321 TIG Welding Rods
📍 Contact Dipti Metal Industries
Headquarters & Global Sales
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