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
Availability: | |
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Product 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 E71T-GS Flux Cored Welding Wire.pdf
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 ) | 0.8、0.9、1.0、1.2、1.6、2.0 | Package | S100/1kg S200/5kg S270/15kg | |||||||||
X - ray detection requirements:Ⅱ | 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 | Diameter(MM) | 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 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**.
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**.
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.
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.
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.
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**.
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**.
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**.
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.
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**.
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**.
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**.
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**.
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**.
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.
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.
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.
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**.
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**.
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**.