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62060801V - Bonarc ER308L Stainless MIG Wire .030 1kg Spool

Packaging: 1kg spool
$36.41/kg $22.76/1kg spool only $22.76/kgSave 37%

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OVERVIEW

Bonarc ER308L .030" MIG Wire - 1kg Spool

Tackle your stainless steel projects with confidence using the Bonarc ER308L .030" MIG welding wire. This 1kg spool is the perfect companion for welders using spool guns or compact portable MIG machines. Whether you are repairing a commercial kitchen exhaust, fabricating a custom car exhaust, or working on marine hardware, this wire delivers the professional results you expect. The ER308L classification means you are getting a wire designed specifically for the most common stainless grades, including 304 and 304L.

Why Choose Low Carbon?

Stainless steel is chosen for its rust resistance, but welding can sometimes compromise that property if the wrong filler metal is used. The Bonarc ER308L has extra-low carbon content. This chemistry prevents the formation of carbides at the grain boundaries of the weld, ensuring your weld won't rust from the inside out over time. It provides superior corrosion resistance compared to standard 308 wire, making it the smart choice for any project that will be exposed to moisture or mild chemicals.

Smooth Welding Experience

One of the biggest challenges with MIG welding stainless steel is wire feeding. Bonarc's precision layer winding helps the wire feed smoothly through your gun liner or spool gun, minimizing friction and preventing tangles. The .030" (0.8mm) diameter is a sweet spot for many welders—it is thin enough to handle sheet metal without blowing through, yet substantial enough to lay down a solid bead on 1/8" or 3/16" plate. You will appreciate the stable arc and the fluid weld puddle that wets out nicely at the toes of the weld.

Ready for Your Spool Gun

The 1kg (2.2 lb) spool size is designed to fit standard 4-inch spool hubs. This makes it incredibly convenient for mobile welders who don't want to lug around heavy 33lb spools, or for shop users who only weld stainless occasionally and don't want a large spool oxidizing on the shelf. Pair this wire with a Tri-mix gas or an Argon/CO2 blend (like 98/2) and DCEP polarity for a clean, bright weld with minimal spatter to clean up afterward.

Additional Information
Brand:Bonarc
Diameter:0.030 in
Aws Spec:ER308L
Grade:308
Packaging:1 kg Spool
Packaging Description:1kg-spool
Weld Process:MIG (GMAW)
Polarity:DC, DCEP
Material Composition:Stainless Steel
Wire Diameter:0.030"
Wire Type:Solid
Shielding Gas Requirement:Argon/CO2 Mix, Tri-Mix (He/Ar/CO2)
Spool Size:1 kg, 4 in
AWS Classification:ER308L
Applications:Food Processing, Chemical Tanks, General Fabrication

INCLUDED

  • 1 x 1kg Spool of Bonarc ER308L .030" Stainless Steel MIG Wire

APPLICATIONS

  • Food and beverage processing equipment
  • Pharmaceutical and chemical tanks
  • Automotive exhaust systems and trim
  • Architectural stainless steel structures
  • General maintenance and repair of 304/304L stainless
  • Marine fittings and hardware

FAQ

For MIG welding with ER308L, a Tri-mix (90% Helium, 7.5% Argon, 2.5% CO2) is ideal for the best bead appearance and penetration. Alternatively, a mix of 98% Argon and 2% CO2 or Oxygen can be used for spray arc transfer.

No, this is a solid MIG wire (ER308L) and requires an external shielding gas to protect the weld pool.

This wire should be used with Direct Current Electrode Positive (DCEP), also known as Reverse Polarity.

It is not recommended. While it will physically weld, 316 stainless requires Molybdenum for corrosion resistance. You should use ER316L wire for 316 base metals to maintain the corrosion properties.

This is a 1kg (2.2 lb) spool, typically on a D100 (4-inch diameter) spool, designed for spool guns and small portable welders.

You can physically weld mild steel with it, but it is not recommended for structural applications due to cost and potential cracking issues. For joining stainless to mild steel, ER309L is the correct choice.

The 'L' stands for Low Carbon. This indicates a maximum carbon content of 0.03%, which helps prevent intergranular corrosion in the weld zone.