Welding is one of the basic tasks in the modern construction industry to create any metalwork or structure. In this process, the electrode or welding rod attaches two small parts of metal by fusion. There are different types of welding these days.
But the most important stage is to choose what sort of welding you need for your metal piece and according to that, choosing the size of the welding rod. In this article, you will have information about two different sizes. The overall comparison of 1/8 vs 3/32 welding rod will help you understand what size of rod you should choose.
What is a 1/8 Welding Rod?
The welding rod with the number 1/18 refers to the diameter of the electrode in inches. Besides, 1/8 inches electrodes can weld over 1/8” thickness of metal. This size of electrodes can weld with fast speed.
Even though the ampere may vary from rod to rod, using 1/8 you can weld in 75-125 amps with 6010 and 6011 electrodes.
What is a 3/32 Welding Rod?
The 3/32” diameter of the electrode refers to the rod that can be used to weld up to ¼” metal sheets. The highest amp required for a 7024 is 100-145. Since the current depends on the work, you should choose both your rod and the power source carefully.
1/8 vs. 3/32 Welding Rods: A Detailed Comparison
The comparison between these two welding rods solely depends on the type of welding. First of all, try to make sure the size of the metal sheets and the surface. Then you can decide which rod to use for welding.
In the following 1/8 vs 3/32 welding rod comparison, you will have all the necessary information.
Puddle: Even though 1/8” is the most commonly used rod for stick welding, 3/32” presents a smaller puddle. The travel speed is also slower. So, the arc is more controlled and easier to work for beginners.
The thickness of metal: According to the welders, you should use 3/32 for thin sheets. However, 1/8 gives a more stable arc on the thick sheets. (Read more about 6011 Vs 6013 Welding Rods).
The difference in amps: 1/8 and 3/32 require the different amp to work with different electrodes. A chart of some popular electrodes is given below:
For 1/8” electrode:
|75-125 amps||80-140 amps||80-130 amps||110-160 amps||115-165 amps||140-190 amps|
For 3/32” you will need lower amps than 1/8” rod. Such as:
|40-80 amps||35-85 amps||45-90 amps||80-125 amps||70-100 amps||100-145 amps|
Penetration: You can use 1/8 for fusing metals where deep penetration is required whereas 3/32 is ideal for shallow conditions.
Appearance: Since 1/8 can weld on rusty, rough surfaces where deeper welding is needed, the appearance is rough as well. And it offers first travel speed and fast freeze. On the other hand 3/32” delivers slow-motion welding resulting in a smoother and flat arc on the sheets.
Splatter: Splatter is less by 3/32 than 1/8.
Frequently Asked Questions (FAQs)
Q. When welding on 1/8 plate or smaller, what size of electrode should be used?
Answer: For a 1/8 plate you can use a 1/8” rod. But for the smaller size you have to use a 5/32” rod.
Q. How thick can 3/32 Rod Weld
Answer: 3/32 rod can weld up to ¼”.
Q. When can I use a 1/8 rod?
Answer: Whenever you need to weld pipe joint, maintenance or repair work over painted or rusty surface and fast welding, you can use 1/8 rod.
Q. How can you tell if a welding rod is bad?
Answer: If you notice dry or powdery coating, soft coating, bubbles on the coating, your rod is bad. This can be caused because of moisture absorption by the rod or the rust on it.
I hope the 1/8 vs 3/32 welding rod comparison will help you in the future to weld perfectly. It is really important to find out the proper measurement of the sheet to weld and the welding rod before starting welding.
Always remember to take safety precautions and check the surface before welding. However, you can also follow the chart given by the manufacturer to select the exact amp to weld. This article will run further updates if found latest information. Till then, happy welding. (Read more about welding vs electrician).