Buy Stainless Steel Welding Rods Online in Australia
Stainless Steel Welding Rods and Electrodes for Australian Fabrication
Stainless steel welding rods and electrodes deposit corrosion-resistant weld metal on stainless steel parent material — providing the chemistry continuity that stainless steel applications require. For Australian fabricators, food-equipment manufacturers, marine engineers, and chemical-process equipment makers, the right stainless rod matched to the parent material is essential. Wrong rod selection produces welds that corrode in service, defeating the purpose of the stainless construction. AIMS Industrial supplies stainless steel welding rods from Bossweld and approved welding consumable brands.
The stainless rod grades we stock
- 308L — for welding 304 and 304L stainless steel; the most common general-purpose stainless rod
- 309L — for welding dissimilar metals (carbon steel to stainless), and 309 stainless parent material
- 316L — for welding 316 and 316L stainless steel; marine-grade and chemical-resistant applications
- 312 — high-chromium rod for difficult-to-weld stainless and dissimilar applications
- 347 — for stabilised stainless grades and high-temperature applications
The "L" in 308L, 316L, etc.
The "L" indicates low carbon content. Standard 308 and 316 grades have higher carbon, which can lead to chromium carbide precipitation at grain boundaries during welding (sensitisation). Sensitised stainless is susceptible to intergranular corrosion in service. Low-carbon "L" grades resist sensitisation, making them the preferred choice for welded stainless components — particularly in chemical and food-grade applications.
Stick electrodes versus TIG rods
- Stick (covered) electrodes — coated rods for SMAW (manual metal arc) welding; the everyday choice for repair and field welding
- TIG (bare) rods — uncoated rods for GTAW (TIG) welding; produce the cleanest welds for food-grade and high-finish work
- MIG wire (welding wire) — see MIG consumables for stainless MIG wire
Where each grade earns its place
- 308L — general 304 stainless fabrication, indoor food equipment, light chemical exposure
- 316L — marine fabrication, food and beverage processing, chemical equipment, pharmaceutical manufacturing
- 309L — repair welds bridging stainless and carbon steel, mismatched alloy joining
- 312 — repair welds on unknown stainless grades, difficult-to-weld stainless, hardfacing transitions
Welding stainless — practical notes
Stainless steel welding has specific requirements that differ from carbon steel work:
- Lower heat input — stainless retains heat and distorts more than carbon steel; use lower amperage where possible
- Inter-pass temperature control — keep parent metal cooled between passes (typically below 150°C)
- Back-purging — the back side of the weld must be shielded with argon during welding to prevent oxidation
- Post-weld passivation — pickling or passivation restores the corrosion-resistant chrome oxide layer that welding disrupts (see our Pelox range)
Brands stocked at AIMS
Bossweld covers the everyday stainless welding consumable range — Australian-supplied and matched to the welding equipment commonly running in Australian workshops. Other approved welding consumable brands fill specific roles in the broader range.
Storage
Stainless welding electrodes (covered rods) absorb moisture from atmosphere, which causes weld defects (porosity, cracking). Store electrodes in their original sealed packaging until use; for opened packs, transfer to a heated rod oven (typically 110-150°C) for storage. Electrodes that have been exposed to humid conditions should be re-baked per manufacturer specification before use.
Companion ranges at AIMS
Stainless welding rods sit alongside our broader welding consumable and stainless work range — see MIG consumables, MIG welding accessories, Pelox stainless treatment, and multiprocess welders for the related products.
Need help selecting stainless rod grade for a specific parent material or application? contact our team — we'll match grade, size, and welding process to your work.