Description
ER312 MIG Wire 1.2mm – Superior Stainless Wire for Dissimilar Metal Welding
The ER312 MIG Wire in 1.2mm diameter is engineered for welding dissimilar steels and high-alloy materials. Packaged on a 15kg spool, this wire is ideal for demanding fabrication, repairs, and maintenance tasks across industrial applications. Its high ferrite content and unique chemistry provide outstanding crack resistance and mechanical strength, even on difficult-to-weld base metals.
Ideal for Problematic and Mixed Metal Joints
ER312 MIG wire is widely used to weld steels that are hard to join with conventional filler materials. It works especially well for tool steels, unknown or mixed steels, and stainless-to-carbon steel combinations. The high chromium (~30%) and nickel (~9%) content results in excellent corrosion resistance and thermal stability.
In addition, its microstructure offers a balance of toughness and strength, making it suitable for components exposed to shock, vibration, or thermal cycling.
Consistent Performance, Clean Beads
Thanks to its smooth arc characteristics, ER312 MIG wire provides low spatter levels and high-quality weld beads. It performs reliably in short-circuit, globular, and spray transfer modes. Welders appreciate its predictable handling, especially when working on critical repairs or structural components with unknown base metal compositions.
Perfect for Structural Repairs and Alloy Steel Fabrication
Whether you’re working in the mining sector, power generation, sugar mills, or general engineering, this 1.2mm stainless wire ensures dependable results. It’s perfect for hard-to-weld areas, patch jobs on hardened steels, and applications where exact material composition is unknown.
The 15kg spool is precision-layer wound for smooth feeding and consistent arc performance. It’s compatible with most industrial MIG welding machines used in heavy-duty environments.
Need other wire grades or sizes? View our full MIG wire category to explore more stainless and carbon MIG options.
Learn More About ER312 and Multi-Application Wires
For more on using ER312 and similar wires, see this informative welding article by ESAB, which covers filler selection for difficult metals.
Reliable Welding for Unknown and High-Alloy Materials
When you need a wire that works across many metal types, the ER312 MIG Wire 1.2mm (15kg) is the dependable choice. It ensures clean welds, excellent strength, and minimal risk of cracking—especially in complex fabrication or repair situations.
