Can ER70S6 welding wire be used to weld titanium materials?

ER70S-6 welding wire is a low-alloy steel welding wire and cannot fuse with titanium base metal; therefore, it cannot be used for welding titanium.

ER70S-6 is an AWS (American Welding Society) standard, equivalent to my country's ER50-6 copper-plated solid low-alloy steel welding wire.

This welding wire belongs to the ER50 series of low-alloy steel welding wires with high tensile strength and is used for welding ferrous metals such as Q235 low-carbon steel and Q345 low-alloy structural steel. It is used for CO2 welding with carbon dioxide gas, or MAG welding with argon + oxygen, argon + carbon dioxide, or argon + oxygen + carbon dioxide gas.

Titanium is a non-ferrous metal. For thinner workpieces, TIG (Tungsten Inert Gas) direct current welding is used. For thicker workpieces, MIG (Metal Inert Gas) welding can be used.

Titanium welding requires matching the appropriate titanium alloy welding wire as filler material depending on the specific grade of the base metal. Titanium is relatively reactive; argon is used as the shielding gas, and its purity must be greater than 99.99%. The delayed gas flow time must be greater than 10 seconds. This places high demands on the welder's operating skills, the selection of welding parameters, and the output characteristics of the welding machine.