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AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire

1. AWS A5.20 E71T-GS is designed primarily for single-pass applications. 
2. "GS" stands for "General Single Pass,not a primary requirement.
3. Meaning it produces its own protective shielding from the flux ingredients.
4. E71T-GS is commonly used welding thin-gauge mild and galvanized steels.
5. Particularly popular for use with small, 110-volt portable welding machines.
6. Ease of use and ability to perform well in outdoor or drafty conditions.
  • E71T-GS

  • 1kg,5kg,15kg,20kg

  • 1lb;2lb;4.5lb;11lb;15lb;20lb;33lb;44lb

  • 0.6mm;0.8mm;0.9mm;1.0mm;1.2mm;1.6;2.0mm

  • 0.023;0.030in;0.035in;3/64″;0.045;1/16″;5/64″

  • D100,D200,D270,D300,BS300,K300

  • Acceptable (design the pack with your logo)

  • 15 Days

  • Welding Wire Catalogue-giant weld.pdf

Availability:
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Product Description

| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Description


1)AWS A5.20 E71T-GS is a classification for a self-shielded, flux-cored arc welding (FCAW-S) electrode, specifically designed for general-purpose, single-pass applications.

2)The "E" signifies an electrode, "7" denotes a minimum tensile strength of 70,000 psi, "1" indicates it can be used in all welding positions, and "T" identifies it as a tubular (flux-cored) wire.


3)The "GS" (General Single Pass) suffix highlights its suitability for applications where the primary focus is ease of use and effectiveness for single-pass welds on thinner materials, rather than demanding multi-pass or high-toughness requirements.


4)As a "gasless" wire, E71T-GS contains specific fluxing agents that decompose during the welding process to produce the necessary shielding gases, eliminating the need for an external shielding gas supply.


5)This welding wire is particularly popular for welding thin-gauge mild and galvanized steels, often used with smaller, 110-volt portable welding machines due to its forgiving arc, minimal spatter, and easily removable slag.


6)It operates on DC Electrode Negative (DCEN) polarity and is widely applied in maintenance, repair, light fabrication, automotive sheet metal work, and hobby projects where convenience and outdoor performance are highly valued.


| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Down Load


AWS A 5.20 E71T-GS Flux Cored Welding Wire.pdf


| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Data Sheet

Standard

AWS A5.20

E71T-GS

Chemical Composition  %



C

Mn

Si

S

P

Al

Grade

E71T-GS

Sample1

0.26

0.91

0.50

0.014

0.016

2.05


Sample2

0.22

1.00

0.24

0.005

0.015

2.02

Type

Spool  (MIG)

Specification 

       ( MM )

0.80.91.01.21.62.0

Package

S100/1kg   S200/5kg   S270/15kg

X - ray detection requirements

Deposited metal diffusible hydrogen (Chromatography or Mercury)

Mechanical Properties

Yield Strength (Mpa)

Tensile Strength (Mpa)

Elongation(%)

AKV Impact Energy(J) -20


    

490

    

    

MIG

Welding

 

Current - A

DiameterMM

1.0

1.2

1.4

1.6


F

80  200

160  220

170  250

180  280


V  up / OH

55  120

120  180

140  200

160  220

Diameter Process
in mm
0.023 0.6 GMAW
0.03 0.8 GMAW
0.035 0.9 GMAW
0.039 1.0  GMAW
1/25.4”
0.045 1.2 GMAW
3/64”
1/16” 1.6 GMAW
AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Packages
Weight 0.5kg 1kg 2kg 5kg 15kg 20kg
1 lb 2 lb 4 lb 11 lb 33 lb 44 lb



| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Workshop Show

AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire


| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Production Video



| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Application

AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire



| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Certificate

AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire



| AWS A 5.20 Gasless E71T-GS Flux Cored Welding Wire Comment & FAQ


What is AWS A5.20 E71T-GS Flux Cored Welding Wire?

AWS A5.20 E71T-GS is a specific classification for a **self-shielded, flux-cored arc welding (FCAW-S) wire**. It's primarily designed for **single-pass, general-purpose welding** of mild and galvanized steels. This **gasless welding wire** offers remarkable convenience, making it a favorite for **light fabrication** and **DIY projects**.


What does "Gasless" imply for E71T-GS welding wire?

The "gasless" nature of E71T-GS means it generates its own protective gas shield from the flux components within its core during the welding process. This eliminates the need for an external shielding gas cylinder and associated equipment, significantly enhancing **portability** and allowing for effective **outdoor welding** even in windy conditions. It's truly a game-changer for on-site **welding applications**.


What are the typical applications for E71T-GS welding wire?

E71T-GS wire excels in light fabrication, automotive sheet metal work, farm equipment repair, and general home repair. Its ease of use makes it a perfect match for hobbyists and those using smaller, **110-volt portable welding machines**. This **welding consumable** is a versatile choice for quick fixes and less demanding **steel welding** tasks.


What base materials are compatible with E71T-GS?

E71T-GS is highly effective for welding **thin-gauge mild steel** and **galvanized steel**. It's particularly forgiving on surfaces that aren't perfectly clean, though good **weld preparation** is always recommended for optimal results. Its adaptability makes it a popular **welding material** for a variety of common steel types.


What are the key advantages of using E71T-GS welding wire?

The primary advantages of E71T-GS include its **gasless operation**, leading to extreme portability and reduced setup time. It offers a smooth arc, low spatter, and easy slag removal, which minimizes post-weld cleanup. Its forgiving nature makes it very user-friendly, contributing to higher **welding efficiency** for hobbyists and light industrial users.


What welding polarity is recommended for E71T-GS?

E71T-GS flux-cored wire is designed to operate on **DC Electrode Negative (DCEN)**, also known as straight polarity. Using DCEN provides a stable arc and good penetration for the typically thinner materials this wire is used on. Always refer to your welding machine's manual and the wire manufacturer's guidelines for precise **welding parameters**.


Can E71T-GS be used for all welding positions?

Yes, the "1" in the E71T-GS classification indicates that it is an **all-position welding wire**. This means it can be successfully used for welding in flat, horizontal, vertical-up, and overhead positions, providing excellent flexibility for various **joint designs** and difficult-to-reach areas in **fabrication** and **repair welding**.


What are the typical mechanical properties of E71T-GS welds?

Welds created with E71T-GS typically achieve a minimum tensile strength of 70,000 psi (approximately 480 MPa). While it may not be suitable for applications requiring high impact toughness or multi-pass strength, it provides sufficient strength and reliability for its intended general-purpose, single-pass applications. These properties are ideal for non-critical **welded joints**.


How does the "GS" designation impact its use?

The "GS" stands for "General Single Pass," which is a key indicator of its primary application. It's optimized for situations where one pass is sufficient to join materials, such as thin sheet metal. While it can tolerate minor multi-pass, it's not designed for heavy, thick-section, or critical structural applications requiring extensive multi-pass welding or stringent **mechanical property** standards like impact testing.


What wire diameters are commonly available for E71T-GS?

E71T-GS welding wire is typically found in smaller diameters, most commonly 0.030" (0.8mm) and 0.035" (0.9mm). These sizes are well-suited for the lower amperage capabilities of smaller, portable welders and for welding thin materials. Selecting the appropriate **wire diameter** is essential for effective **welding performance**.


Is E71T-GS suitable for use with 110-volt welders?

Yes, E71T-GS is one of the most popular choices for **110-volt portable welding machines**. Its self-shielding nature and lower amperage requirements make it highly efficient and effective with these smaller power sources, allowing users to perform welding tasks almost anywhere with a standard power outlet. This makes it a top choice for **mobile welding**.


How does E71T-GS compare to other E71T series wires like E71T-8 or E71T-11?

While all are gasless E71T wires, E71T-GS is specifically for **single-pass** and general-purpose light fabrication. E71T-11 is also general-purpose but offers slightly better multi-pass capability and cleaner welds. E71T-8 is designed for more critical, multi-pass structural applications requiring better low-temperature impact toughness. The choice depends on the specific **welding requirements** and desired **weld integrity**.


What is the typical appearance of a weld made with E71T-GS?

Welds made with E71T-GS typically have a somewhat convex bead profile and will be covered by a layer of slag. The slag is generally quite easy to chip off, revealing a consistent and clean-looking **weld bead** underneath. This characteristic appearance is common for **self-shielded flux-cored wires**.


Does E71T-GS produce a lot of spatter?

When used with optimal settings and technique, E71T-GS generally produces a manageable amount of spatter. Compared to some other flux-cored wires, it's known for relatively clean operation. Minor adjustments to **voltage** and **wire feed speed** can often further reduce spatter and improve the overall **weld appearance**.


Are there any specific safety precautions for using E71T-GS?

Standard welding safety practices are crucial, including wearing a **welding helmet** with appropriate shade, **welding gloves**, and protective clothing. Ensure adequate ventilation, especially when welding galvanized materials, as the flux produces fumes. Always consult the product's Safety Data Sheet (SDS) for comprehensive **safety information** and precautions.


How should E71T-GS wire be stored to maintain quality?

To preserve its quality and prevent moisture absorption, E71T-GS wire should be stored in a dry environment, ideally in its original sealed packaging. Protect it from humidity, condensation, and extreme temperature fluctuations. Proper **wire storage** is vital for consistent feeding and optimal **welding performance**, ensuring it's ready when you need it.


Can E71T-GS be used for thin sheet metal applications?

Yes, E71T-GS is an excellent choice for **thin sheet metal welding** due to its smaller wire diameters and forgiving arc characteristics. It provides good penetration control, making it suitable for automotive body work, light gauge ducting, and similar applications where heat input needs to be carefully managed to prevent burn-through. It's a key **welding solution** for precision work.


What are common issues to avoid when welding with E71T-GS?

Common issues include excessive spatter (often due to incorrect stick-out or too high voltage), porosity (from moisture absorption or inadequate shielding), and undercut. Proper **travel speed**, consistent **stick-out**, and clean **base material** (as much as possible) are critical to mitigating these issues and achieving **high-quality welds**.


Is E71T-GS suitable for beginners?

Yes, E71T-GS is often recommended for beginners due to its simplicity and forgiving nature. The self-shielding aspect removes the complexity of gas management, allowing new welders to focus on developing proper torch control and bead placement. Its ease of use makes it an ideal wire for learning **FCAW techniques** and building confidence in **welding skills**.


Where can I find detailed specifications and technical data for E71T-GS?

Detailed specifications, including chemical composition, mechanical properties, recommended welding parameters, and any applicable certifications, can be found on the manufacturer's official technical data sheets (TDS) or product brochures. These resources are essential for engineers and welders to ensure the wire meets specific **project requirements** and **industry standards**.


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