Lincoln Electric Metalshield® MC-110 is a metal-cored GMAW-C wire classified AWS A5.18 E70C-6M, delivering the deposition efficiency of flux-cored wire with the clean, slag-free welds of solid wire. This listing is the 0.045" diameter, 33 lb spool (ED033910) — the go-to format for high-speed automated and semi-automatic fabrication on mild and low-alloy steel.
| Product Line | Lincoln Electric Metalshield® MC-110 |
|---|---|
| Part Number | ED033910 |
| AWS Classification | AWS A5.18 E70C-6M |
| Wire Diameter | 0.045 in (1.14 mm) |
| Spool / Drum Weight | 33 lb Spool |
| Shielding Gas Required | 75% Ar / 25% CO₂ (C25) or 90% Ar / 10% CO₂ (C10) |
| Polarity | DCEP (DC Electrode Positive) |
| Typical Applications | High-speed automated welding, robotic cells, structural fabrication, automotive frames, agricultural and construction equipment, any flat/horizontal production application requiring slag-free welds |
Metalshield MC-110 (AWS A5.18 E70C-6M) is a metal-cored wire — a tubular wire filled with metallic powder rather than flux. It combines the high deposition rates typical of flux-cored wires with the slag-free bead surface of solid wire, eliminating the slag-removal step between passes and in high-cycle automated environments.
- Robotic and automated welding: MC-110's wide, stable spray-transfer arc makes it ideal for robotic MIG cells where arc-on time and bead consistency drive throughput. The absence of slag means no interpass cleanup robots must accommodate.
- Structural steel production: Excellent for flat and horizontal fillet welds on A36, A572, and similar structural steels. High deposition rates reduce weld time on heavy fabrications.
- Automotive and transportation frames: Metal-cored wire's smooth bead profile and minimal spatter suit automotive assembly lines where cosmetic and dimensional weld quality matter.
- Agricultural and construction equipment: Heavy plate welding on booms, frames, and structural members where speed and bead appearance both matter. Works well on lightly scaled or primed steel.
- Multi-pass heavy plate: Slag-free welds allow immediate multi-pass welding without interpass grinding or chipping, saving significant time on thick plate fabrications.
Choose Metalshield MC-110 over solid MIG wire (SuperArc L-56) when deposition rate and travel speed are paramount in flat or horizontal position. Metal-cored wire typically runs 10–20% faster travel speeds than equivalent solid wire at the same heat input, making it attractive for production shops looking to reduce weld time without switching to flux-cored.
Choose Metalshield MC-110 over flux-cored wire (Outershield 71M) when post-weld slag removal is a time or quality concern — metal-cored wire leaves no appreciable slag. However, if you need out-of-position capability on vertical or overhead joints, flux-cored wire (E71T-1) is generally preferred because its slag system helps support the puddle.
The 0.045" diameter is the standard production size for metal-cored wire in spray-transfer mode (typically 250–375 A range). For thinner materials, a 0.035" solid wire may be a better fit. Browse all Lincoln wire options at our MIG & Flux-Core Wire collection.
WeldingMart is an authorized Lincoln Electric distributor. Every spool of Metalshield MC-110 is genuine Lincoln Electric product, manufactured to the chemistry and quality standards that your production process and code qualifications depend on.
- Authorized Lincoln Electric distributor: Factory-certified product with full traceability — critical when your WPS references a specific wire classification and lot.
- Production welding expertise: Our staff understands robotic and automated welding applications and can help you optimize wire, gas, and parameter selection.
- Fast US shipping: In-stock spools ship promptly to keep your production line moving.
- Full wire lineup: Compare MC-110 with SuperArc L-56 solid wire and Outershield flux-cored options at our MIG & Flux-Core Wire collection.