Tig Filler Rod Types& Their Best Uses

Tig Filler Rod

The process of selecting the right TIG filler rod can be difficult at first, but once you have experience, choosing a rod will be second nature tig filler rod types You can choose from ER23 titanium, RG45 aluminum alloy, or molybdenum-bearing ER316L.

Here we have described some of the TIG filler rods.

  • ER23 Titanium
  • RG45 Aluminum Alloy
  • ER316L Molybdenum Bearing

ER23 Titanium

There are various types of titanium filler rods. These rods come in various diameters and are used in welding. The most commonly used commercial pure grade is ERTi-2, which has excellent formability and weldability. It also has good resistance to high temperatures and aggressive chemical reagents. Its high strength-to-weight ratio makes it a popular choice for aerospace applications.

When welding titanium, joint fit-up is critical. Square joints are the best choice to minimize oxygen from entering the weld and correspondingly reduce the amount of heat that is required to fill the joint. Square joints are also ideal for reducing the risk of burn-through and contamination. Clamping the ends together also helps ensure a tight fit.

The composition of the base metal and the type of weld joint will determine the type of filler rod that is best suited for your application. The American Welding Society (“AWS”) has established guidelines for various alloys. Each ER number corresponds to a specific base metal and weld condition.

Filler rods are essential for TIG welding, so make sure you select one that will work well with your welding process. TIG filler rods are available in different diameters and alloys. They are usually sold in boxes of 10 or 50 pounds and are available in different sizes. The size and composition of each filler rod will affect the strength of the weld. While this process may seem daunting at first, the selection will be second nature once you become familiar with filler rods.

Titanium filler rods must be cleaned thoroughly. If there is contamination during welding, it could cause embrittlement and failure. If the filler metal is too thin, it may have a low yield strength and compromise ductility. For these reasons, it is essential to ensure the cleanliness of the weld.

RG45 Aluminum Alloy

If you are a welder, you might be wondering if you should use ER70S-2 or RG45 aluminum alloy tig fillerrods. These rods are essentially the same thing but can be used for different applications. For example, ER70S-2 is great for OFW welding 4130 tubes, but it is not a good choice for oxy-acetylene welding. It also tends to produce a lot of spatter and fumes.

Filler-rod selection depends on several factors, including the base metal composition and the type of joint. It would help if you also considered the metal’s stock thickness, cleanliness, and thermal properties. Choosing the right fillerrod will help you make strong TIG welds.

When choosing fillerrods for TIG welding, remember that each aluminum alloy has its properties and advantages. For example, the 4043 alloy is a good option for welding with stainless steel. Its high-quality welds won’t have any gaps or distortions. It also provides excellent anodized color matching and can be used in various applications.

RG45 welding rod is an excellent choice for joining low-carbon steel. It is easy to machinate and provides excellent flexibility. It also doesn’t require flux. However, you must ensure that you use a neutral flame while brazing. Its typical applications include steel sheets, pipes, structural shapes, and ornamental art. In addition, it is ideal for automotive repair.

RG45 aluminum alloy tig filler is versatile and can weld hot-rolled steel without any porosity. It’s also the best choice for mild steel. This alloy also offers good corrosion resistance. However, the ER70S-D2 rod is the best choice if you’re welding with stainless steel.

ER316L molybdenum-bearing alloy

ER316L molybdenum bearing alloy tig filler rod types are high-quality, low-carbon rods for welding Molybdenum bearing and similar stainless steels. They have a maximum carbon content of 0.03% and comply with the ANSI/AWS A5.9 and ASME SFA 5.9 welding standards.

ER316L welding wire is primarily used for welding low-carbon alloys, such as stainless steel and nickel-chromium alloys. It contains 2% molybdenum and reduces intergranular carbide precipitation, making it stronger than ER316H at high temperatures. The ER316L filler metal is not available for use in sub-arc welding. Sub-arc welding requires a different flux, either agglomerated or fused. The composition of flux plays a role in the chemistry of the weld metal and its mechanical and corrosion resistance.