Mild Steel - Flux Cored Wire
Mild steel flux-cored welding wire (FCAW) from HYW Products — gas-shielded E71T-1, self-shielded (gasless) E71T-GS and E71T-11, high-efficiency metal-cored wire, and wear-resistant hardfacing wire. Whether you need high deposition under gas or true gasless portability, there's a wire here in common .030", .035", and .045" sizes.
Buying guide, comparison chart, brand cross-reference & FAQ — click to expand
| Wire | Shielding | Polarity | Position | Best For |
|---|---|---|---|---|
| E71T-1 | Gas (CO² / Ar-CO²) | DC+ (DCEP) | All-position | High-deposition structural fabrication, smooth arc |
| E71T-GS | Self-shielded (gasless) | DC− (DCEN) | All-position | Single-pass, thin steel, no-gas portable MIG |
| E71T-11 | Self-shielded (gasless) | DC− (DCEN) | All-position | Multi-pass general-purpose gasless welding |
| Metal-Cored | Gas (Ar-CO²) | DC+ (DCEP) | — | High deposition & efficiency, low spatter, production |
| Hardfacing | Varies | — | — | Abrasion/impact-resistant overlay on worn parts |
Key distinction: gas-shielded wires (E71T-1, metal-cored) run on DC+ and need shielding gas; self-shielded wires (E71T-GS, E71T-11) run on DC− and need no gas bottle.
Cross-Reference & Brand Equivalents
Already buying a name-brand flux-cored or metal-cored wire? The wires below are spec-equivalent to ours and can be replaced with them. Match the diameter, shielding, and polarity, and confirm your welding procedure or code before switching.
| Brand | Their Product | Replace With (HYW) |
|---|---|---|
| ESAB | Dual Shield 71 | E71T-1 (gas-shielded) |
| Lincoln Electric | Outershield 71 | E71T-1 (gas-shielded) |
| Kobe Welding (Kobelco) | DW-100 | E71T-1 (gas-shielded) |
| Hyundai Welding | Supercored 71 | E71T-1 (gas-shielded) |
| Lincoln Electric | Innershield NR-211-MP | E71T-11 (gasless) |
| Hobart | Fabshield 21B | E71T-11 (gasless) |
| Lincoln Electric | Metalshield MC-6 | Metal-Cored |
| Hobart | Metalloy 76 | Metal-Cored |
| Kobe Welding (Kobelco) | MX-100 | Metal-Cored |
Cross-references identify comparable products by AWS classification and are provided as a general guide only. Gas-shielded, self-shielded, and metal-cored wires are not interchangeable — match the wire type, shielding, polarity, and your welding procedure or code before substituting. All third-party brand and product names — Dual Shield® and ESAB® (ESAB), Outershield®, Innershield®, Metalshield® and Lincoln Electric® (The Lincoln Electric Company), Fabshield®, Metalloy® and Hobart® (Hobart Brothers / ITW), DW-100, MX-100 and KOBELCO® / Kobe Welding (Kobe Steel, Ltd.), and Supercored® and Hyundai Welding (Hyundai Welding Co., Ltd.) — are trademarks of their respective owners. HYW Products / Hy-Weld Inc. is an independent distributor and is not affiliated with, authorized by, sponsored by, or endorsed by these companies; their names are used solely for identification and accurate comparison.
Shop by Wire
- › E71T-1 — gas-shielded all-position structural wire
- › E71T-GS — gasless single-pass wire
- › E71T-11 — gasless multi-pass wire
- › Metal-Cored Wire — high-efficiency production wire
- › Hardfacing Wire — wear-resistant overlay
Frequently Asked Questions
What is the difference between gas-shielded and self-shielded flux-cored wire?
Gas-shielded wire (E71T-1, metal-cored) needs a shielding-gas bottle and runs on DC+; it gives smooth, high-quality welds for shop fabrication. Self-shielded wire (E71T-GS, E71T-11) makes its own shielding as the flux burns and runs on DC− — no gas needed, ideal for portable and outdoor work.
What is the difference between E71T-GS and E71T-11?
Both are gasless. E71T-GS is rated for single-pass welds on thinner steel; E71T-11 supports multi-pass welding and a wider thickness range.
Also see: Mild Steel MIG Wire · Mild Steel Stick Electrodes
