What are the types of welding wire?

Welding wire is an important filler metal or conductive material in the welding process. It has various types and can be divided into many types according to different classification standards. The following are the main classifications of welding wires, their characteristics and applications:

Main classifications of welding wires

Powdered welding wire

The shape is round or special-shaped, and it is rolled by bending thin steel strips.

The inside is filled with powder of a certain composition, and it is drawn into a seamless flux-cored welding wire, or a large amount of powder is filled in the steel pipe and drawn into a seamless flux-cored welding wire.

It is suitable for improving welding efficiency and deposition efficiency, and has good adaptability to steel.

Rolled welding wire

Most welding wires on the market belong to this category.

Including non-ferrous metal welding wire, stainless steel welding wire, carbon steel welding wire, alloy structural steel welding wire, low alloy structural steel welding wire, etc.

Cast welding wire

It is mainly used for manual surfacing with special performance requirements, such as oxidation resistance, wear resistance and corrosion resistance at high and low temperatures.

The manufactured cobalt-chromium-tungsten welding wire adopts the method of liquid extrusion and continuous casting, and is widely used in automatic TISCO gas shielded welding.

Electric spark cold welding wire
Usually used for welding or surfacing at room temperature.
Mainly used for welding repair and repair of certain special performance and high temperature resistant parts.
Application scenarios and characteristics of welding wire
Classification by welding material
Welding wire for low carbon steel, welding wire for low alloy high strength steel, welding wire for Cr-Mo heat resistant steel, welding wire for low temperature steel, welding wire for stainless steel, etc.
Classification by welding method
Submerged arc welding wire, CO2 gas shielded welding wire, tungsten inert gas arc welding wire, consumable inert gas arc welding wire, self-shielded welding wire and electroslag welding wire.
Characteristics of flux cored welding wire
It can be divided into two types: seam welding wire and seamless welding wire.
It contains slag forming agent with special properties. No argon protection is required for bottom layer welding. The powder in the core will penetrate into the back of the molten pool to form a dense slag protective layer.
Performance comparison of different types of welding wires
Solid core welding wire
It is made of hot rolled wire by drawing and is currently the most commonly used welding wire.
Suitable for various welding methods such as submerged arc welding and electroslag welding.
Self-shielded welding wire

Use the alloy elements contained in the welding wire to deoxidize and denitrify during the welding process, suitable for outdoor or high-rise structure field use.
In summary, there are many types of welding wires, and each type of welding wire has its specific application scenarios and characteristics. Choosing the right welding wire is crucial to ensuring welding quality and improving production efficiency.