Stainless Steel MIG & TIG Welding Wire
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Stainless steel MIG and TIG welding wires are solid filler metals that can join austenitic, ferritic, martensitic, and duplex stainless steel grades with the appropriate filler selection. These wires match or slightly over-alloy the chemistry of the base metal to produce welds that resist corrosion and hold up under service conditions.
Stainless steel MIG and TIG wires are highly resistant to intergranular corrosion, low carbon pickup, and clean weld bead profiles. Low-carbon (L) grades reduce the risk of carbide precipitation in the heat-affected zone. Silicon-bearing variants improve wetting and arc stability during MIG welding.
Engineers choose stainless steel MIG and TIG wires when the welded joint must retain full corrosion resistance after fabrication. These wires allow the weld metal to match the base material in strength, ductility, and chemical resistance. This is critical in process piping, pressure vessels, and equipment exposed to acids, chlorides, or high temperatures.
Common applications include food and beverage processing, pharmaceutical equipment, chemical reactors, heat exchangers, power plant piping, pulp and paper machinery, and offshore platforms. These wires also serve in cryogenic systems and nuclear fabrication with strict weld quality standards.
At Nicorex Alloys, we stock a wide range of stainless steel MIG and TIG welding wires at our Mumbai facility. As a supplier and stockist, we source these products from recognised global producers and supply them to fabrication shops, EPC contractors, and plant operators across India.
Complete Range of Stainless Steel MIG & TIG Welding Wire
| Product Grade | Best Metals They Can Weld | Reason |
|---|---|---|
AWS Class ER308L/308LSi/308H MIG & TIG
|
AISI 304, 304L, 304H stainless steel | Matching chemistry provides full corrosion resistance in standard austenitic grades |
AWS Class ER309/309L/309LSi MIG & TIG
|
Dissimilar joints between stainless and carbon steel | Higher chromium and nickel content compensates for dilution from carbon steel |
Alloy 309LMo MIG & TIG
|
Dissimilar joints needing added pitting resistance | Molybdenum addition improves resistance to chloride attack at the fusion zone |
AWS Class ER310 MIG & TIG
|
AISI 310, 310S high-temperature stainless steel | Matches the 25Cr-20Ni composition for service up to 1100 degrees C |
AWS Class ER312 MIG & TIG
|
Dissimilar and hard-to-weld stainless combinations | High ferrite content reduces hot cracking in mixed-alloy welds |
AWS Class ER316L/316H/316LSi MIG & TIG
|
AISI 316, 316L, 316H molybdenum-bearing stainless steel | Molybdenum provides pitting and crevice corrosion resistance in chloride environments |
AWS Class ER317L MIG & TIG
|
AISI 317L stainless steel | Higher molybdenum than 316L for improved resistance in aggressive chemical service |
AWS Class ER320LR MIG & TIG
|
Alloy 20 (CN-7M) stainless steel | Matched composition resists sulfuric acid and mixed-acid environments |
AWS Class ER330 MIG & TIG
|
AISI 330 and high-nickel heat-resistant alloys | High nickel and chromium provide stability under thermal cycling above 1100 degrees C |
AWS Class ER347 MIG & TIG
|
AISI 347, 321 stabilised stainless steels | Niobium stabilisation prevents intergranular corrosion in high-temperature service |
AWS Class ER385 MIG & TIG
|
Alloy 904L (UNS N08904) super austenitic stainless steel | High nickel, chromium, and molybdenum match 904L for strong acid resistance |
AWS Class ER410 MIG & TIG
|
AISI 410, 410S martensitic stainless steel | Matching 12% chromium deposit for moderate corrosion and wear resistance |
AWS Class ER410NiMo MIG & TIG
|
CA6NM and 410NiMo castings and wrought components | Nickel and molybdenum additions improve toughness and corrosion resistance over standard 410 |
AWS Class ER630 MIG & TIG
|
17-4 PH (AISI 630) precipitation-hardening stainless steel | Matched composition allows post-weld age hardening to restore full strength |
Quick Selection Matrix
| Base Metal Being Welded | Recommended Wire | AWS Class | Why This Choice |
|---|---|---|---|
| AISI 304L Piping | ER308L MIG & TIG | ER308L | Low carbon deposit prevents sensitisation in 304L welds |
| Carbon Steel To 316L Stainless Joint | ER309L MIG & TIG | ER309L | Over-alloyed filler compensates for dilution at the dissimilar interface |
| AISI 316L Vessel Shells | ER316L MIG & TIG | ER316L | Molybdenum-bearing deposit matches base metal pitting resistance |
| Alloy 904L Reactor Lining | ER385 MIG & TIG | ER385 | High Mo and Ni content matches 904L for sulfuric and phosphoric acid service |
| AISI 347 Superheater Tubes | ER347 MIG & TIG | ER347 | Niobium stabilisation prevents carbide precipitation during elevated temperature operation |
| 17-4 PH Turbine Components | ER630 MIG & TIG | ER630 | Allows precipitation hardening after welding to restore high tensile strength |
Get Stainless Steel MIG & TIG Welding Wire Prices
OUR PRODUCTS
- Welding Consumables
- Coated Electrodes
- MIG & TIG
- Nickel Alloys MIG & TIG
- Stainless Steel MIG & TIG
- AWS Class ER308L/308LSi/308H MIG & TIG
- AWS Class ER309/309L/309LSi MIG & TIG
- Alloy 309LMo MIG & TIG
- AWS Class ER310 MIG & TIG
- AWS Class ER312 MIG & TIG
- AWS Class ER316L/316H/316LSi MIG & TIG
- AWS Class ER317L MIG & TIG
- AWS Class ER320LR MIG & TIG
- AWS Class ER347 MIG & TIG
- AWS Class ER385 MIG & TIG
- AWS Class ER410 MIG & TIG
- AWS Class ER410NiMo MIG & TIG
- AWS Class ER630 MIG & TIG
- Duplex & Super Duplex Steel MIG & TIG
- Chrome Moly MIG & TIG
- Titanium MIG & TIG
- Zirconium MIG & TIG
- Aluminum MIG & TIG
- Bronze Alloys MIG & TIG
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- SAW & Flux
- Round bars
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