.030 vs. .035 Flux Core Wire: Which one to go for?

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In this article we’ll review the .030 vs. .035 Flux Core Wire and see which one comes out on top!

Best Seller
YESWELDER Magnesium Aluminum Welding Wire ER5356 .030-Diameter, 1-Pound Spool
Best Budget
YESWELDER Silicon Aluminum Welding Wire ER4043 .035-Diameter, 1-Pound Spool
YESWELDER Magnesium Aluminum Welding Wire ER5356 .030-Diameter, 1-Pound Spool
YESWELDER Silicon Aluminum Welding Wire ER4043 .035-Diameter, 1-Pound Spool
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Best Seller
YESWELDER Magnesium Aluminum Welding Wire ER5356 .030-Diameter, 1-Pound Spool
YESWELDER Magnesium Aluminum Welding Wire ER5356 .030-Diameter, 1-Pound Spool
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Best Budget
YESWELDER Silicon Aluminum Welding Wire ER4043 .035-Diameter, 1-Pound Spool
YESWELDER Silicon Aluminum Welding Wire ER4043 .035-Diameter, 1-Pound Spool
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In a task which concerns welding, it isn’t easy to find the wire with the right size for you. Thus, here we have made a comparison between .030 and .035 Flux Core Wire so that you can purchase the straight flux core wire according to your work.

What Is A .030 Flux Core Wire?

As the name suggests, .030 Flux Core Wire is a wire used in the welding process, which has a core made of flux. The number .030 used in the name of the product is to specify the welding rod diameter. 030-Flux-Core-Wire

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The .030 Flux Core Wire requires less amperage since it is thin and can only work with thin metal sheets. .030 Flux Core Wire faces troubles during welding thick metal sheets. This flux core wire doesn’t require any external gas containers.

When To Use .030 Flux Core Wire?

.030 Flux Core Wire is the best option if you are working with thin material and light metals. This wire can be used when you don’t require welding gas in your process or don’t have any welding gas. 

Pros & Cons of .030 Flux Core Wire

Pros
  • Significantly less cleaning is required after welding.
  • .030 Flux Core Wire runs very smoothly with any jerks and glitches.
  • It generates considerably less smoke and pollution.
Cons
  • .030 Flux Core Wire only has a good grasp on thin metal sheets.
  • Since it has a narrow diameter, it can burn hotter and perforate deeply in the metal.

What Is .035 Flux Core Wire?

Just like .030 Flux Core Wire, 0.35 Flux Core Wire is a welding wire. It is equipped with flux in the center, which can furnish a filler metal when melted for a smooth welding job. The number .035 used in the name of the product specifies the welding rod diameter. 035-Flux-Core-Wire

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.035 Flux Core Wire needs a high degree of amperage because it’s thick, and it burns at a very high temperature and gives a better and deeper piercing performance. 

When to Use .035 Flux Core Wire?

To use a .035 Flux Core Wire, you must decrease the wire speed and increase the voltage. It works flawlessly on thick sheets of metal. You can use it both with and without gas. It splatters in case you are not using gas, but it works perfectly with gas.

Pros & Cons of .035 Flux Core Wire

Pros
  • It can comfortably weld thick metals, mainly carbon steel.
  • The little slag created by this wire can be easily removed.
  • It can give an acceptable performance even in a moderate wind environment because it’s a fast freezing attribute.
Cons
  • It doesn’t give a clean performance unless you’re using gas. 
  • Smoothly works only on metals with 1/4 inch thickness. 

Main Differences between .030 Flux Core Wire & .035 Flux Core Wire

  • The differences between .030 and .035 flux core wire are as follows: 
  • The welding range of .030 Flux core wire is around 50 to 150 Amp approx, and on .035, it is from 75 to 200 Amp approx.
  • The voltage range of .030 wire is around 15 to 17 volts, and for .035 wire, it is from 15-18 volts approx.
  • The wire feed speed range of .030 wire is 80 to 445 inches per minute and on .035 wire is 70 to 305 inches per minute.
  • 0.30 wire is suitable for piercing thin metal sheets, and 0.35 is more suitable for thick metal sheets, which are 1/4 inches thick.

Conclusion & Recommendation

This comparison can’t be clearly stated, which wire is better since you choose the wire depending on the metal you’ll be welding and the machine you’ll use. It can’t be clearly stated which wire is better.

For beginners or a general welding job, .030 is ideal for heavy metals, .035 wire. 

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Video

Video of .030 flux core wire 

Video of .035 flux core wire

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Best .030 flux core wire 

Best .035 flux core wire

About the Author Gregory

Hi, my name is Gregory! I have been welding practically all of my life and love it. As I have gotten older I have started to weld less and less, so in order to continue my love for welding I created this website. I like to write about my experiences and help you all become welders. I hope that you enjoy the site!

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