E71T-11

E71T-11 Gasless Flux Core Wire for Strong and Efficient Welds

The E71T-11 wire is the perfect choice for welders who need strength, convenience, and reliability — especially for outdoor jobs or situations where shielding gas isn’t available. 

As a flux-cored, gasless wire, it delivers deep penetration, stable arcs, and consistent welds even on slightly dirty or rusted surfaces. 

At PGN Bearings, we offer a full range of E71T-11 wire options in various diameters and spool sizes, designed to meet the needs of professionals and DIY projects alike. 

Browse our collection and find the wire that matches your welding application.

What Is E71T-11 Welding Wire?

E71T-11 is a flux-cored welding wire classified under AWS (American Welding Society) standards. It’s designed for gasless welding, meaning it does not require external shielding gas. Instead, its core contains flux materials that generate the protective gas and slag needed during the welding process.

This wire is highly recommended for jobs that require mobility and convenience — such as field repairs, outdoor welding, and construction sites — where using shielding gas cylinders isn’t practical.

E71T-11 offers excellent penetration, arc stability, and ease of use, even for operators without industrial-grade machines. 

It works particularly well on mild steel, and thanks to its tolerance for slightly dirty or rusty surfaces, it's a go-to solution for reliable and consistent welds across different environments.

Benefits of Using E71T-11 in Welding

E71T-11 welding wire provides several key advantages that make it a preferred option for many welding professionals. 

One of its biggest benefits is that it can be used without external shielding gas, eliminating the need for gas tanks and regulators. This makes it especially convenient and cost-effective for outdoor welding jobs.

Another highlight is its multi-position versatility. E71T-11 performs well in horizontal, vertical, and overhead welds, offering deep penetration and smooth weld beads. Whether you're working on light repairs or structural components, this wire delivers reliable results.

It also features excellent arc stability, minimal spatter, and easy slag removal, which contribute to cleaner finishes and less post-weld cleanup. 

These qualities make E71T-11 a smart choice for efficient, high-quality welding on mild steel across various work environments.

E71T-11 Wire Chemical Composition

The chemical makeup of E71T-11 wire is specifically formulated to deliver strong, stable, and clean welds, even on surfaces that are not perfectly clean. This optimized composition is key to the wire’s performance in a wide range of field and industrial applications.

Here’s a breakdown of the main elements and their functions:

• Carbon (C: 0.04%) – adds mechanical strength to the weld.

• Manganese (Mn: 0.48%) – enhances impact resistance and acts as a deoxidizer.

• Silicon (Si: 0.078%) – stabilizes the arc and aids in deoxidation.

• Sulfur (S: 0.009%) and Phosphorus (P: 0.01%) – kept at low levels to prevent cracking.

• Chromium, Nickel, Molybdenum, Vanadium, and Copper – trace elements that contribute to weld integrity and corrosion resistance.

Thanks to this balanced chemical profile, E71T-11 is an excellent choice for welding mild steel, offering great fusion, minimal porosity, and clean, strong finishes. It's no surprise that professionals rely on this wire for demanding and high-responsibility tasks.

Common Applications of E71T-11

E71T-11 wire is widely used across multiple industries due to its versatile performance without the need for shielding gas. It's especially useful in situations that require portability, speed, and ease of use — including outdoor and remote jobs.

Here are some of the most common applications:

Field Repairs and Construction Work

Perfect for welding fences, gates, structural components, and outdoor metalwork. Its gasless operation makes it ideal for exposed environments.

Automotive and Transportation Maintenance

Frequently used for chassis repairs, trailer welding, exhaust systems, and other mild steel components, offering strong and durable results.

Industrial Maintenance and DIY Projects

Great for light repairs, furniture frames, brackets, and custom metalwork. E71T-11 is also a smart option for hobbyists using standard welding machines.

With compatibility across different skill levels and job conditions, E71T-11 is a go-to wire for welders who value efficiency, reliability, and ease of use.

Tips for Welding with E71T-11

To get the best performance from E71T-11 welding wire, it’s essential to follow key technical recommendations and best practices. Below are useful tips to help you achieve cleaner, safer, and more efficient welds.

Which polarity should you use?

E71T-11 is designed to run on DCEN (Direct Current Electrode Negative). This polarity provides better penetration and arc stability during gasless welding.

Ideal amperage by wire size

• 0.030" wire: works best between 80–130A

• 0.035" wire: recommended range is 100–160A, depending on metal thickness

Proper current settings ensure smoother welds and better control of the arc.

Surface preparation

Even though E71T-11 is tolerant of minor rust and dirt, it’s best to clean the metal surface to reduce the risk of porosity, cracking, or excessive spatter.

Maintain travel speed and torch angle

Keep the torch at a 10–15 degree angle and move at a consistent speed, staying close to the weld pool. This ensures stable arc behavior and smooth bead formation.

E71T-11 vs. ER70S-6

Choose E71T-11 for outdoor, gasless applications, and ER70S-6 for indoor jobs that require shielding gas. Always consider your setup and environment before selecting a wire.

By following these tips, you can achieve high-quality results even with portable or entry-level welding equipment.

Our E71T-11 Product Line

At PGN Bearings, we offer a complete range of E71T-11 welding wire in various diameters and spool sizes. 

Designed for high-performance, gasless welding, our wires are built for durability, consistency, and ease of use — whether you're working on light-duty tasks or extended welding sessions.

Explore our product selection:

E71T-11 .035" – 2LB

• Wire diameter: 0.035" (0.9 mm);

• Weight: 2 lb spool;

• Great for quick jobs and medium-duty work;

• Stable arc with a clean, smooth finish.
  
  

E71T-11 .030" – 2LB

• Wire diameter: 0.030" (0.8 mm);

• Weight: 2 lb spool;

• Recommended for thin metal and small repairs;

• Ideal for beginners or home use.
  
  

E71T-11 .035" – 10LB

• Diameter: 0.035" (0.9 mm);

• Weight: 10 lb spool;

• 8” spool diameter, 2” center hole;

• Suitable for extended welding and higher volume production.
  
  

E71T-11 .030" – 10LB

• Diameter: 0.030" (0.8 mm);

• Weight: 10 lb spool;

• Great for shop maintenance and repair work;

• Offers long run time with precise weld control.

All models are compatible with standard welding machines and deliver consistent welds with low spatter and easy slag removal.

Why Choose PGN Bearings for E71T-11 Wires?

Choosing the right wire matters. But choosing the right supplier is what makes all the difference. At PGN Bearings, we deliver proven quality, a full product range, and the support that professionals can rely on.

Our E71T-11 wires meet strict international standards and are tested to ensure reliable, clean, and strong welds. Every spool is inspected with care to guarantee top-level performance.

We offer multiple diameter and weight options, always in stock and ready to ship, so you can keep your projects moving without delay.

And if you ever need guidance, our team is here to help with specialized technical support, making sure you get the right product for your specific application.

At PGN, you get the perfect mix of quality, speed, and trust — from your first order to your final weld.

FAQ – E71T-11 Welding Wire

1. What is E71T-11 welding wire?

E71T-11 is a flux-cored welding wire that does not require external shielding gas. It’s ideal for mild steel and outdoor jobs, providing deep penetration and stable arc performance.

2. Does E71T-11 require shielding gas?  

No. E71T-11 is self-shielded — its core releases the protective gas during the welding process. This makes it perfect for use in open or hard-to-reach environments.

3. What’s the difference between E71T-11 and ER70S-6?

E71T-11 is a gasless flux-core wire, ideal for outdoor or field welding. ER70S-6 is a solid wire that requires shielding gas (typically CO₂ or gas mix) and is suited for indoor, controlled environments.

4. What polarity should I use with E71T-11?

Use DCEN (Direct Current Electrode Negative), also known as straight polarity. This setting provides better penetration and arc stability with flux-core wires.

5. Where can I use E71T-11 wire?

It’s great for welding mild steel in fences, gates, trailers, support structures, and general field repairs. Common in construction, auto shops, and maintenance tasks.

6. What amperage is recommended for E71T-11?

• For 0.030" wire: 80–130A

• For 0.035" wire: 100–160A

The right amperage depends on material thickness and application type.