The Lincoln Electric Outershield 71M is a gas-shielded flux-cored arc welding (FCAW-G) wire classified to AWS A5.20/A5.20M E71T-9C-J / E71T-9M-J and the H16 diffusible hydrogen designators. Designed for all-position welding on carbon and low-alloy steel, Outershield 71M delivers consistent arc transfer, low spatter, and self-releasing slag for high-deposition single- and multi-pass applications. WeldingMart is an authorized Lincoln Electric distributor — all product ships factory-direct with full manufacturer warranty and support from our Wisconsin facility.
Explore related consumables: MIG & Flux-Cored Welding Wire | FCAW Wire | MIG Welding Guns & Torches.
| Process | FCAW-G (Flux-Cored Arc Welding, Gas-Shielded) |
|---|---|
| AWS Classification | E71T-9C-J / E71T-9M-J / E71T1-C1A4-CS1-H16 / E71T1-M21A4-CS1-H16 |
| Electrode Type | Flux-Core Gas-Shielded (T-9 designation: single or multi-pass) |
| Alloy Class | Low Alloy Steel |
| Available Diameters | .035″, .045″, .052″, 1/16″ |
| Package Sizes | 10 lb Spool, 25 lb Spool, 33 lb Spool, 50 lb Coil, 500 lb Accu-Trak Drum |
| Shielding Gas | CO2 or 75%Ar/25%CO2 (C1 or M21 per AWS classification suffix) |
| Polarity | DCEP (electrode positive) |
| Positions | All positions (flat, horizontal, vertical-up, overhead) |
| Diffusible Hydrogen | ≤16 mL/100g (H16 designator) |
- Structural steel fabrication: All-position capability makes Outershield 71M well-suited for column, beam, and connection plate work requiring high deposition and clean, self-releasing slag.
- Heavy equipment manufacturing: Consistent arc and fast-freezing slag support out-of-position joints on frames, booms, and chassis components.
- Shipbuilding and barge construction: Multi-pass capability and low spatter maintain productivity on long, repetitive structural runs in carbon steel plate.
- Bridge and infrastructure fabrication: H16 diffusible hydrogen designation and J-grade impact toughness (−20°F / −29°C) support low-temperature structural applications per AWS D1.1.
- General plate and pipe welding: Handles both single-pass fillet welds and multi-pass groove welds on carbon and low-alloy steel base metals.
Outershield 71M feeds through any Lincoln Electric FCAW-G capable wire feeder or MIG welder with appropriate FCAW-rated contact tips and knurled drive rolls. Compatible Lincoln Electric platforms include Power MIG, POWER WAVE, Idealarc CV, and LN-series wire feeders. Always match the contact tip inside diameter to the wire diameter selected. Consult the applicable operator manual for wire feed speed and voltage parameter settings by wire diameter and base metal thickness.
Outershield 71M meets the AWS A5.20/A5.20M E71T-9C-J and E71T-9M-J classifications with J-grade Charpy V-notch toughness (≥20 ft·lb at −20°F / 27 J at −29°C). The H16 designator confirms diffusible hydrogen ≤16 mL/100g deposited weld metal. As a Lincoln Electric OEM product manufactured under ISO 9001-certified processes, each production lot is traceable and meets applicable ASME, AWS, and international weld quality standards.
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