Lincoln Electric SuperArc® L-56 is Lincoln's best-selling premium copper-coated ER70S-6 solid MIG wire, engineered for superior feedability and clean, spatter-free welds on mild and low-alloy steel. This listing is for the 0.045" diameter, 500 lb Accu-Trak® drum (ED020532) — the high-volume format built for production MIG welding where downtime costs money.
| Product Line | Lincoln Electric SuperArc® L-56 |
|---|---|
| Part Number | ED020532 |
| AWS Classification | AWS A5.18 ER70S-6 |
| Wire Diameter | 0.045 in (1.14 mm) |
| Spool / Drum Weight | 500 lb Accu-Trak® Drum |
| Shielding Gas Required | 100% CO₂ or 75% Ar / 25% CO₂ (C25) |
| Polarity | DCEP (DC Electrode Positive) |
| Typical Applications | Structural fabrication, shipbuilding, automotive, general manufacturing, sheet metal to heavy plate |
SuperArc L-56 (AWS A5.18 ER70S-6) is one of the most versatile solid MIG wires available. Its elevated silicon and manganese content makes it the go-to choice whenever the base metal has mill scale, rust, or light contaminants.
- Structural steel fabrication: Excellent wetting action and smooth bead profile on A36 and A572 structural sections. Meets most AWS D1.1 prequalified WPS requirements.
- Automotive and transportation: High deposition efficiency at 0.045" supports robotic and semi-automatic lines welding frame rails, suspension, and body-in-white components.
- Shipbuilding and offshore: High-deposition performance on carbon steel plate in flat and horizontal positions; qualifies readily under Lloyd's, ABS, and DNV approvals.
- General manufacturing and job shops: Works across a wide parameter window — single-pass to multi-pass on material from 12 ga sheet through heavy plate — reducing wire changeovers.
- Pipe and pressure vessel: 500 lb Accu-Trak drum keeps production welding cells running for extended periods without spool changes.
The 0.045" diameter is the sweet spot for higher-amperage spray-transfer and pulsed-MIG applications (typically 200–350 A), and for robotic cells where deposition rate directly affects throughput. If you are welding thinner gauge material (12–16 ga), consider the 0.030" or 0.035" versions of L-56 instead.
The 500 lb Accu-Trak drum is designed for high-volume production operations. If you run a single welder or small shop, the 10 lb or 33 lb spool options may be a better fit. The Accu-Trak packaging delivers wire consistently to the feeder without tangles or birdnesting, even at high wire-feed speeds.
If your application involves galvanized or heavily contaminated steel and you need even higher deposition, consider Lincoln's Metalshield MC-110 (metal-cored, AWS E70C-6M) which offers higher travel speeds. For out-of-position work on dirty steel, Lincoln's Outershield 71M flux-cored wire is worth evaluating. Browse all options at WeldingMart's MIG & Flux-Core Wire collection.
WeldingMart is an authorized Lincoln Electric distributor, which means every spool and drum of SuperArc L-56 you purchase is genuine, factory-fresh product backed by Lincoln Electric's quality guarantee. You are not buying gray-market, relabeled, or third-party wire.
- Genuine Lincoln Electric product: Full manufacturer warranty and quality traceability on every order.
- Expert support: Our welding specialists can help you match the right wire, diameter, and shielding gas to your application before you buy.
- Fast US shipping: Orders ship promptly from our US warehouse. Freight-eligible quantities like 500 lb drums ship via LTL with care to protect your investment.
- Volume pricing: Contact us for pricing on multiple drums or blanket orders — we work with fabricators, shipyards, and contract manufacturers regularly.
- No minimum hassle: Whether you need one 10 lb spool or a pallet of drums, WeldingMart fulfills orders of any size.