DIPTI METAL INDUSTRIES
Leading ER320LR TIG Rod Stockist, ER320LR Supplier & ER320LR Exporter in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the globally recognized ER320LR Supplier and the primary ER320LR Stockist of premium Low-Residual stainless steel welding consumables in Mumbai, India. ER320LR is the advanced version of standard ER320, where residual elements such as Carbon, Silicon, Phosphorus, and Sulfur are kept at ultra-low levels. This precise control is mandatory to prevent micro-fissuring and hot-shortness in the fully austenitic weld deposit of Alloy 20. As a premier ER320LR Exporter, we supply certified TIG rods to critical chemical plants, pharmaceutical reactors, and fertilizer production units across 75+ countries.
🏭 Solving the Challenge of fully Austenitic Weld Cracking
As a leading ER320LR Supplier in Mumbai, we address the technical difficulty of welding Alloy 20. Because Alloy 20 welds lack ferrite, they are highly sensitive to hot cracking. ER320LR’s "Low Residual" chemistry provides the highest level of weld integrity for equipment handling hot sulfuric acid. By keeping residuals low and Niobium stabilization high, the weld maintains exceptional ductility and corrosion resistance without the risk of structural micro-cracks.
The ER320LR Technical Edge
- Guaranteed resistance to hot cracking and micro-fissuring
- Exceptional resistance to sulfuric acid (20% to 40% concentration)
- Superior protection against Stress Corrosion Cracking (SCC)
- High-purity chemistry for critical pharmaceutical audits
Critical Industry Solutions
- Chemical: Heat exchangers and acid pickling tanks.
- Pharma: High-pressure vessels for corrosive reagents.
- Food Processing: Mixing tanks for high-acid additives.
- Fertilizers: Piping systems for phosphoric acid.
📘 Technical Profile: ER320LR (AWS A5.9) Filler Metal
Typical Chemical Composition (%)
| Element | Typical Range |
|---|---|
| Carbon (C) | 0.03 Max |
| Nickel (Ni) | 32.0 - 36.0 |
| Chromium (Cr) | 19.0 - 21.0 |
| Copper (Cu) | 3.0 - 4.0 |
| Silicon (Si) | 0.15 Max |
| Phosphorus (P) | 0.015 Max |
| Sulfur (S) | 0.010 Max |
Mechanical Properties (Typical)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 560 MPa (81 ksi) |
| Yield Strength | ≥ 360 MPa (52 ksi) |
| Elongation (%) | ≥ 30% |
| Ferrite Number | 0 FN (Fully Austenitic) |
Certified to AWS A5.9 ER320LR / UNS S8021. Supplied with full 3.1 Mill Test Certification and Anti-Cracking Compliance.
Inventory Availability & Export Standards
- 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 ultra-high purity for international projects:
- Sealed plastic tubes (5kg / 10kg units) with moisture desiccant.
- 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 ER320LR Consumables
As an established ER320LR Exporter, Dipti Metal Industries ensures that time-critical industrial projects receive premium filler metals worldwide from our Mumbai hub.
- Americas: USA, Canada, Mexico, Brazil, Chile.
- Middle East: UAE, Saudi Arabia, Kuwait, Oman, Qatar.
- Europe: Germany, UK, Netherlands, Norway, Italy.
- Asia: Singapore, Australia, Vietnam, Japan, South Korea.
Request a Quote for ER320LR 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