E71T-GS Gasless Flux-Cored Welding Wire — 10/25/33 lb Spools
E71T-GS Gasless Flux-Cored Welding Wire — 10/25/33 lb Spools
E71T-GS Gasless Flux-Cored Welding Wire — 10/25/33 lb Spools

E71T-GS Gasless Flux-Cored Welding Wire — 10/25/33 lb Spools

Regular price $40.47 Sale

E71T-GS Gasless Flux-Cored Welding Wire is a self-shielded, single-pass flux-cored wire built for fast, gas-free welding of thin mild and low-carbon steel. Because it runs without external shielding gas, it is ideal for portable wire-feed machines and outdoor or windy job sites where bottled gas is impractical.

Key Features

  • No shielding gas required — runs on DCEN (electrode-negative) straight polarity
  • Smooth arc with good wetting on thin-gauge steel
  • Easy slag removal and a clean, flat bead
  • Great match for portable and entry-level welders
  • Performs well outdoors and in breezy conditions

Ideal Applications

  • Single-pass welds on 18-gauge to 1/4 in. mild steel
  • Lap, fillet, and butt joints
  • Auto body, trailers, fencing, brackets, and general repair
  • DIY, hobby, farm, and maintenance work

Technical Specifications

Classification AWS A5.20 / A5.20M – E71T-GS
Process FCAW-S (self-shielded flux-cored)
Shielding Gas None required
Polarity DCEN (DC electrode negative)
Number of Passes Single-pass
Tensile Strength 70,000 psi (min)
Available Diameters 0.030 in. · 0.035 in.
Welding Positions Flat, horizontal, vertical-down

Store in a clean, dry area and keep spools sealed when not in use to protect the wire from moisture and ensure smooth feeding and consistent arc performance.

Typical Chemical Composition

Typical all-weld-metal analysis (wt %). Single values are maximums; iron is the balance.

Element Typical Weld Metal (wt %)
Carbon (C) typ. 0.25
Manganese (Mn) typ. 0.50
Silicon (Si) typ. 0.40
Aluminum (Al) typ. 1.6
Phosphorus (P) 0.03 max
Sulfur (S) 0.03 max
Iron (Fe) Balance

Mechanical Properties

Typical as-welded properties; values meet AWS A5.20 E71T-GS (single-pass). Self-shielded (gasless), DCEN.

Tensile Strength 70,000 psi (490 MPa) min — typ. 79,000 psi (545 MPa)
Yield Strength typ. 64,000 psi (440 MPa)
Elongation (2 in / 50 mm) typ. 20%
Charpy V-Notch Impact Not required (single-pass)
WARNING

This product can expose you to chemicals including manganese, which is known to the State of California to cause birth defects or other reproductive harm. Welding fumes from this product can also expose you to chemicals known to cause cancer. For more information go to www.P65Warnings.ca.gov.