Steel Welding Wire

Steel Welding Wire refers to the joint of metal parts coated and welded during welding. During the welding process, the welding procedure specification will specify parameters such as the position, length, width and height of the welding line in detail. Using different welding methods and materials, the shape and structure of the welding wire will also be different.

Common steel welding wire classifications are as follows:

1. Weld: A weld is the joint required to join two or more metallic materials together. Weld shapes include straight seam, fillet weld, slot weld, etc.

2. Cladding layer: While the metal materials are connected together by welding, the welding material also covers the metal to form a stronger connection. This is the cladding layer.

3. Welding Angle: The angle when welding.

4. Welding gap: The space reserved between two metal materials to place the welding material during welding.

The main functions of welding wire are as follows:

1. Connecting metal materials of different kinds and materials by welding.

2. Form a stable chemical and physical connection between the welding material and the base metal, making the entire structure stronger.

3. Increase the hardness, wear resistance and corrosion resistance of the surface of metal materials.

The following factors need to be considered in selecting the appropriate welding wire:

1. Welding material configuration: choose a welding material suitable for the application requirements.

2. Compatibility of welding material and base metal.

3. Welding process: An appropriate welding process should be selected.

4. Welding environment: According to the welding conditions, select the appropriate type and specification of welding materials.

Here are some examples of possible Chinese, British, American and Japanese national standards for Welding Wire:

Chinese standard:

GB/T 8110-2020 Non-alloy steel and fine-grain steel solid wire for gas shielded arc welding, GB/T 5293-2018 Non-alloy steel and fine-grain steel solid wire, flux-cored wire and welding wire for submerged arc welding - Flux combination classification requirements, GB/T 12470-2018 Heat-strength steel solid wire, flux-cored welding wire and welding wire for submerged arc welding - flux combination classification requirements

American standard:

AWS A5.18/A5.18M - Specification for Carbon Steel Electrodes and Rods for Gas-Shielded Arc Welding

AWS A5.9/A5.9M - Specification for Bare Stainless Steel Welding Electrodes and Rods

British Standard:

BS EN ISO 14341:2011 - Welding consumables. Unalloyed and fine grain steel wire electrodes and weld metal for gas shielded metal arc welding. Classification

BS EN ISO 14343:2017 - Welding consumables. Wire electrodes, strip electrodes, wires and rods, assortment, for arc welding of stainless and heat-resistant steels.

Japanese standard:

JIS Z 3312 - Solid wire electrodes and rods for fusion welding of aluminum and its aluminum alloys

JIS Z 3313 - Solid wire electrodes and rods for fusion welding of stainless steel.

Specific standards may vary by country, region and type of welding material.

Steel Welding Wire Specifications

Diameter

The diameter of the welding wire is usually selected according to the pin hole size of the components required for welding. Generally speaking, the diameter of the welding wire should be slightly smaller than about 60% of the size of the pin hole, which can ensure good welding quality and will not get stuck during welding.

Length

The length of the welding wire is usually selected according to the needs of the welding operation. After welding, if the welding wire is too long, it needs to be cut off, otherwise it may affect the normal operation of the circuit.

Solder Alloy Composition

The composition of the solder alloy is usually selected based on the needs of the soldering operation. In general, an alloy composition of 85% tin, 15% lead is most commonly used because of its good wettability and solderability.