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E71t-GS Self Shielded Flux-Core Welding Wire(FCAW) for Mild Steel

The E71T-GS is a self-shielded, flux-cored welding wire classified under AWS A5.20. The "E71" denotes a minimum tensile strength of 71,000 psi (490 MPa), while "T" indicates a tubular (flux-cored) electrode. The "GS" suffix signifies Gas-less (no external shielding gas required) and Single-pass applications.
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  • E71T-GS

  • SZESHANG

Key Features:

  • Self-Shielded Design: Operates without external gas, ideal for outdoor or windy conditions.

  • Single-Pass Use: Optimized for quick, efficient welds on mild/low-carbon steel; not recommended for multi-pass welding.

  • Positions: Typically suitable for flat and horizontal positions due to high deposition rates and slag characteristics.

  • Polarity: Requires DCEN (Direct Current Electrode Negative).

  • Slag System: Produces easy-to-remove slag, reducing post-weld cleanup.

Applications:

  • Common in automotive repair, agricultural equipment, construction, and light fabrication.

  • Ideal for portable setups or field repairs where gas cylinders are impractical.

Mechanical Properties:

  • Tensile Strength: ≥71,000 psi (490 MPa).

  • Yield Strength: ~58,000 psi (400 MPa).

  • Elongation: Approximately 20% (varies by manufacturer).

Operational Guidelines:

  • Wire Diameter: 0.030–0.045 inches (0.76–1.14 mm) for light to medium work.

  • Storage: Keep dry to prevent moisture absorption, which can affect weld quality.

  • Precautions: Avoid multi-pass use; ensure proper joint fit-up for single-pass effectiveness.

Advantages:

  • Portability and ease of use in remote locations.

  • Reduced equipment setup time compared to gas-shielded processes.

Limitations:

  • Restricted to single-pass welding.

  • Limited to specific positions (flat/horizontal) in most cases.

This wire balances convenience and performance for quick, durable repairs and fabrication in non-critical environments. Always consult manufacturer specifications for precise settings and compatibility.

焊丝型号 
Model
符合标砖 GB/T AWS
Meeting the standards GB/T AWS
化学成分(质量分数)% Chemical component(Mass fraction) 熔敷金属力学性能 Mechanical Properties of Deposited Metal 应用
Application
C Mn Si S P Rm(Mpa) Rp0.2(Mpa) A(%) Akv(J)
SHJ501-1 GB/T 10045-2001
E501T AWS A5.20 E71T-1
JIS Z3313 YFW-C50DR
≤0.18 ≤1.75 <0.90 ≤0.03 ≤0.04 ≥500 ≥410 ≥22 ≥47~27 用于重要的低碳钢及低合金钢的焊接
Applied to the welding of low carbon steel and low-alloy steel structure
SHJ501-1M GB/T 10045-2001
E501T-1M  AWS A5.20 E71T-1M
JIS Z3313 YFW-C50DR
≤0.18 ≤1.75 <0.90 ≤0.03 ≤0.04 ≥500 ≥410 ≥22 ≥47~27 用于重要的低碳钢及低合金钢的焊接
Applied to the welding of low carbon steel and low-alloy steel structure
SHJ702 GB/T 10045-2001
E500T-1 AWS A5.20 E100T-1
JIS Z3313 YFW-C50DR
≤0.18 ≤1.75 <0.90 ≤0.03 ≤0.04 ≥500 ≥410 ≥22 ≥27(0℃) 用于船舶、机械制造、桥梁等钢结构的平焊和平角焊。
For flat and flat angle welding ships,machine manufacturing,bridge and other steel structure.
SHJ507-1 GB/T 10045-2001
E500T-5 AWS A5.20 E70T-5
JIS Z3313 YFW-C503B
≤0.10 ≤1.75 <0.90 ≤0.03 ≤0.04 ≥500 ≥410 ≥22 ≥27(-30℃) 用于船舶、机械制造、容器、石油化工、桥梁等重要钢结构的焊接。
For welding ships,machine manufacturing,Vessl,petrochemical industry,bridge and other important steel structure.

Vacuum Foil Package Flux Cored Welding WireFCAW Welding WireE71T-1 Flux Cored Welding WireD100 Spool Flux Cored Welding WireSlice 01Slice 02Slice 03Slice 04Slice 05Slice 06Slice 07Slice 08


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