E7018 Welding Rods – Reliable Solution for Critical Welds

E7018 welding rods are designed for structural and industrial applications where strength, durability, and precision are essential. Known for their low-hydrogen composition and all-position versatility, they are the top choice for critical welds. 

At PGN Bearings, we offer a complete line of E7018 electrodes built to deliver solid, clean, and dependable welds. Our mission is to provide high-quality, certified products that meet industry demands  — with fast and reliable shipping across the U.S.

What Is the E7018 Welding Rod?

The E7018 welding rod is a coated electrode classified by the AWS for structural and heavy-duty welding. The "7018" designation refers to its 70,000 psi tensile strength, all-position welding capability, and low-hydrogen composition. 

This low hydrogen content plays a key role in minimizing weld cracking and porosity, ensuring long-term durability.

Its iron powder coating helps maintain a steady arc and improves metal deposition, producing clean, uniform weld beads. Additionally, E7018 rods work with both AC and DC power sources, giving welders the flexibility to adapt to various machines and jobsite conditions.

Compared to other electrodes like 6013, E7018 stands out for delivering stronger, more reliable welds under demanding conditions. 

That’s why it’s commonly used in structural steel, pipeline fabrication, pressure vessels, and critical welding operations.

Key Benefits of E7018

The E7018 welding rod stands out for its strength, arc stability, and adaptability, making it essential for demanding welding jobs. Its low-hydrogen formula delivers cleaner welds and minimizes the risk of cracks or internal defects.

• Up to 70,000 psi tensile strength: Built for high-load applications, E7018 ensures solid, dependable welds.
  
  

• Low cracking risk and smooth finish: Low hydrogen content greatly reduces weld failures and produces smooth, high-quality beads.
  
  

• Reliable performance under tough conditions: Even in challenging environments, E7018 maintains consistent arc control and efficient deposition.
  
  

• Compatible with both AC and DC: Works seamlessly across different power sources, ideal for both field and shop use.
  
  

• All-position welding capability: From flat to vertical, this rod provides control and reliability at every angle.

Choosing the Right E7018 Rod Diameter

Selecting the right E7018 rod diameter is essential to achieving a strong, clean, and efficient weld. Each size suits specific applications depending on joint design, welding position, and base metal thickness.

• 3/32" (2.4 mm): Best for overhead and vertical welding. Offers greater control with lower penetration—ideal for thin materials and lighter structures.
  
  

• 1/8" (3.2 mm): A balanced and versatile option, suitable for general-purpose welding. Delivers a good mix of deposition rate and arc stability.
  
  

• 5/32" (4.0 mm): Designed for heavy-duty applications, this size allows deeper penetration and higher weld volume—perfect for thick joints and industrial use.

Choosing the correct diameter improves efficiency, reduces waste, and ensures weld integrity across all applications.

Common Uses and Applications of E7018

The E7018 rod is trusted across industries that rely on strong, durable, and precise welds. Its low-hydrogen coating and high tensile strength ensure excellent performance even in demanding environments.

Structural steel and beam welding

E7018 is a top choice for civil engineering, metal buildings, and steel frame construction. It creates dependable joints in beams, columns, and base plates, capable of withstanding high loads and constant vibration. Its smooth arc and consistent bead quality reduce post-weld cleanup and rework.

Construction sites and metal frameworks

Field jobs often involve unstable environments, yet E7018 delivers reliable performance outdoors, even in wind or temperature swings. Its versatility makes it ideal for steel trusses, platforms, support braces, and site-assembled components, where strong and clean welds are essential.

Industrial maintenance and machinery repair

For equipment under stress—like tractors, excavators, and press systems—E7018 offers deep penetration and long-lasting welds. It’s suitable for both AC and DC power sources, making it convenient for shop use or on-site repairs. The rod’s strength helps restore equipment integrity quickly and safely.

Shipbuilding and pipeline fabrication

Welding for ships, tanks, and pressurized pipelines requires precision and structural confidence. E7018 ensures crack-resistant welds and stable arc control in these high-risk applications. 

It's ideal for use in hull plating, fuel tanks, pressure vessels, and critical pipeline joints, where weld reliability is non-negotiable.

Welding Tips for Best Results with E7018

To get clean and strong welds with E7018, follow these essential tips:

• Use proper amperage: Match the rod size:
  3/32" (80–110 A), 1/8" (110–160 A), 5/32" (150–210 A).
  
  

• Keep rods dry: Avoid moisture exposure. Reheat if necessary to prevent cracking or porosity.
  
  

• Choose the right polarity: E7018 runs on AC and DCEN—DCEN gives better arc stability and depth.
  
  

• Reduce spatter: Use a short arc, proper angle, and steady travel speed for a clean, even bead.

Our E7018 Product Selection

PGN Bearings offers a complete range of E7018 welding rods, tailored for everything from light repair work to heavy-duty industrial applications. 

All rods are low-hydrogen, compatible with both AC and DC, and suitable for all welding positions. Here’s what you’ll find in our collection:

E7018 1/8" – 5LB

This is the most versatile size in the line. With a 1/8" diameter, it offers the perfect balance between arc control and weld strength. 

It’s ideal for structural applications such as beams, columns, and support frames. Known for its clean arc, minimal spatter, and consistent performance, this rod is widely used in construction and industrial repair. It performs well on both AC and DC power, and in all positions.

E7018 3/32" – 5LB

This thinner option offers more control and is ideal for vertical welding, narrow spaces, and light fabrication. Welders often choose it for detailed work, precise repairs, or when working with thin base materials. 

Despite its size, it delivers solid welds with great appearance and reliability — especially in jobs where accuracy matters.

E7018 5/32" – 5LB

Built for tough industrial conditions, the 5/32" rod delivers deep penetration and a higher deposition rate. It’s the best choice for pressure vessels, pipeline welding, shipbuilding, and structural steelwork that demands strength and efficiency. 

With fewer passes required and excellent arc stability, it boosts productivity and weld quality in heavy-duty settings.

Why Choose PGN Bearings?

PGN Bearings supplies industrial components and consumables with a focus on performance, consistency, and technical reliability. Established in 2018 and based in Miami, Florida, the company serves professionals and industries throughout the United States.

The E7018 welding rod lineup is designed to meet demanding welding conditions, offering stable arcs, strong mechanical properties, and consistent results. 

All products are developed under strict quality standards to ensure safety, compatibility, and performance in the field.

Key advantages of working with PGN include:

• A wide range of diameters and packaging options, suitable for different welding scales and techniques.

• Efficient logistics, supporting fast delivery across various U.S. locations.

• Technical support, helping professionals choose the appropriate product for their specific welding needs.

Compatibility and Technical Standards

PGN's E7018 electrodes meet the AWS A5.1/A5.1M standard, ensuring proper mechanical performance, chemical composition, and all-position welding capability.

Compatible with both AC and DCEN, they offer flexibility for a range of applications — from structural work to heavy equipment repairs. 

For professionals working under technical specifications, AWS compliance ensures consistency and reliability.

Still Not Sure Which E7018 Rod to Choose?

If you're still deciding which E7018 electrode fits your needs, explore PGN’s product range and find the right solution for your next job.

Whether it's for structural welding, machinery maintenance, or more specific industrial applications, our team can assist you in selecting the proper diameter and welding setup.

PGN’s full product line is built to meet a wide variety of demands with quality, efficiency, and safety in mind. Count on PGN.

FAQ – E7018 Welding Rod 

1. What is the E7018 welding rod used for?

E7018 rods are used in structural and industrial welding. They offer high tensile strength and reduce the risk of cracking or porosity.

2. What’s the difference between E7018 and E6013 rods?

E7018 is a low-hydrogen rod designed for critical welds. E6013 is easier to handle but better suited for light-duty, non-structural work.

3. Do E7018 rods need to be baked before use?

Only if wrongly stored, as they may absorb moisture. Re-baking in an oven may be required before welding.

4. What is the ideal amperage for E7018 rods?

• 3/32" → 80–110 A

• 1/8" → 110–160 A

• 5/32" → 150–210 A
  
  

5. Can E7018 be used with AC power?

Yes. E7018 rods work with both AC and DCEN (direct current electrode negative).

6. Is E7018 suitable for all welding positions?

Yes. It’s classified for all positions—flat, horizontal, vertical, and overhead.

7. What base metals are compatible with E7018?

E7018 is ideal for carbon steels and structural metals in beams, piping, and other high-stress components.