DIPTI METAL INDUSTRIES
Leading ER309Mo TIG Rod Stockist, ER309Mo Supplier & ER309Mo Exporter in Mumbai, India
Dipti Metal Industries (A KMR Group Company) is the globally recognized ER309Mo Supplier and the primary ER309Mo Stockist of over-alloyed stainless steel welding consumables in Mumbai, India. ER309Mo (23% Cr, 13% Ni, 2.5% Mo) is a premium filler metal designed for the most demanding dissimilar metal joining applications, such as welding stainless steel to carbon or low-alloy steels. The addition of Molybdenum provides superior resistance to pitting and crevice corrosion, making it the strategic choice for the first layer (buffer layer) when cladding carbon steel with 316L stainless steel. As a premier ER309Mo Exporter, we supply certified TIG rods to petrochemical refineries, shipyards, and heavy engineering firms across 75+ countries.
🏭 Strategic Over-Alloyed Performance of ER309Mo
As a leading ER309Mo Supplier in Mumbai, we address the critical need for weld integrity in transition joints. ER309Mo's over-alloyed composition compensates for the dilution effect when welding stainless steel to carbon steel, ensuring the weld deposit remains fully austenitic and crack-resistant. The Molybdenum content not only improves corrosion resistance but also enhances high-temperature tensile and creep strength, outperforming standard 309L in aggressive environments.
The ER309Mo Technical Edge
- Excellent resistance to pitting and crevice corrosion
- Superior joining of stainless steel to low-alloy steels
- Ideal buffer layer for 316-type stainless cladding
- High mechanical properties and crack resistance
Critical Engineering Solutions
- Petrochemical: Cladding of pressure vessels.
- Marine: Joining SS components to mild steel hulls.
- Power Plants: High-temperature boiler components.
- Refineries: Transition joints in corrosive piping.
📘 Technical Profile: ER309Mo (AWS A5.9) Filler Metal
Typical Chemical Composition (%)
| Element | Typical Range |
|---|---|
| Carbon (C) | 0.12 Max |
| Chromium (Cr) | 23.0 - 25.0 |
| Nickel (Ni) | 12.0 - 14.0 |
| Molybdenum (Mo) | 2.0 - 3.0 |
| Manganese (Mn) | 1.0 - 2.5 |
| Silicon (Si) | 0.30 - 0.65 |
Mechanical Properties (Typical)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 620 MPa (90 ksi) |
| Yield Strength | ≥ 440 MPa (64 ksi) |
| Elongation (%) | ≥ 30% |
| Impact Strength | High at Room Temp |
Certified to AWS A5.9 ER309Mo / ASME SFA 5.9. Supplied with full 3.1 Mill Test Certification and Heat Traceability.
Inventory Availability & Export Packaging 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")
- Standard Length: 1000mm (39")
Maintaining material purity for international shipments:
- 5kg (11lb) / 10kg (22lb) plastic tubes.
- Individually embossed Heat Number on each rod.
- VCI vapor-barrier protection for anti-rust sea transit.
- ISPM-15 wooden boxes for international air/ocean shipments.
Global Supply Network for ER309Mo Consumables
As an established ER309Mo Exporter, Dipti Metal Industries ensures that time-critical industrial projects receive premium filler metals worldwide.
- Middle East: UAE, Saudi Arabia, Kuwait, Oman, Qatar.
- Americas: USA (Houston), Canada, Mexico, Brazil.
- Europe: Germany, UK, Netherlands, Norway, Italy.
- Asia: Singapore, Australia, Vietnam, Japan, South Korea.
Request a Quote for ER309Mo 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