ER70S-2 vs ER70S-6 TIG: Choosing the Best Filler Rod

When it comes to TIG welding, choosing the right filler rod is crucial for achieving high-quality welds. Two commonly used filler rods are ER70S-2 and ER70S-6. Both of these rods are popular choices for welding a variety of materials, but there are key differences between them that make each one better suited for different applications. In this article, we will compare ER70S-2 and ER70S-6 TIG filler rods to help you choose the best one for your welding needs.

ER70S-2 Filler Rod.

ER70S-2 is a versatile filler rod that is widely used for TIG welding mild steel. It contains higher levels of silicon and manganese compared to ER70S-6, which allows it to produce stronger welds with better wetting and flow characteristics. ER70S-2 filler rod is ideal for welding applications where strength and ductility are important, such as structural welding or automotive fabrication.

One of the main advantages of ER70S-2 filler rod is its ease of use. It produces a stable arc with minimal spatter, making it suitable for both beginner and experienced welders. Additionally, ER70S-2 filler rod has good penetration and can be used in various welding positions, including flat, horizontal, vertical, and overhead.

ER70S-6 Filler Rod.

ER70S-6 is another popular choice for TIG welding mild steel. It contains higher levels of deoxidizers, such as manganese and silicon, compared to ER70S-2, which makes it more suitable for welding dirty or rusty materials. ER70S-6 filler rod is commonly used in applications where clean and smooth welds are not essential, such as agricultural equipment or outdoor structures.

One of the main advantages of ER70S-6 filler rod is its excellent bead appearance. It produces welds with minimal spatter and a smooth, uniform finish, making it a preferred choice for cosmetic welding or applications where aesthetics are important. Additionally, ER70S-6 filler rod is easy to handle and can be used in various welding positions.

Choosing the Best Filler Rod.

When deciding between ER70S-2 and ER70S-6 filler rods for TIG welding, it is essential to consider the specific requirements of your welding application. If you need to achieve high-strength welds with good wetting characteristics, ER70S-2 filler rod is the best choice. On the other hand, if you are looking for a filler rod that produces clean and smooth welds, ER70S-6 filler rod is more suitable.

In conclusion, both ER70S-2 and ER70S-6 filler rods have their own advantages and are suitable for different welding applications. By understanding the differences between these two filler rods, you can choose the best one for your specific needs and achieve high-quality welds.

Contact Us.

If you have any questions about ER70S-2 and ER70S-6 filler rods or need assistance in choosing the right filler rod for your TIG welding project, please feel free to contact us. Our team of welding experts is here to help you make informed decisions and achieve excellent welding results.

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