DIPTI METAL INDUSTRIES
Dipti Metal Industries (A KMR Group Company) is the primary ER439 Supplier and ER439 Stockist of premium ferritic stainless steel welding consumables in Mumbai, India. ER439 is a technical advancement over standard 409 filler metals, containing a higher Chromium content (~18%) and Titanium stabilization. It is specifically engineered to provide superior resistance to high-temperature oxidation and atmospheric corrosion. As a premier ER439 Exporter, we supply certified TIG rods to automotive exhaust manufacturers, sugar refinery fabricators, and power plant engineers across 75+ countries.
As a leading ER439 Supplier in Mumbai, we address the rigorous requirements of high-heat industrial sectors. The Titanium addition in ER439 filler metal prevents sensitization and intergranular corrosion by tying up carbon, ensuring the weld deposit remains stable during repetitive heating and cooling. With its 18% Chromium base, ER439 offers corrosion resistance comparable to Type 304 in many environments, but with the added structural benefit of resistance to Stress Corrosion Cracking (SCC) inherent to ferritic alloys.
| Element | Typical Range |
|---|---|
| Carbon (C) | 0.04 Max |
| Chromium (Cr) | 17.0 - 19.0 |
| Titanium (Ti) | 10 x C to 1.10 |
| Manganese (Mn) | 0.80 Max |
| Silicon (Si) | 0.80 Max |
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 480 MPa (70 ksi) |
| Yield Strength | ≥ 320 MPa (46 ksi) |
| Elongation (%) | ≥ 18% |
| Magnetic Status | Magnetic (Ferritic) |
Certified to AWS A5.9 ER439. Supplied with full 3.1 Mill Test Certification and Heat Traceability.
Maintaining material purity for international automotive and sugar projects:
Shipping premium ER439 TIG rods from Mumbai port to global industrial hubs.
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