Low Alloy Steel Electrode Sizes Requirements (GB/T 5118－1995)
Low Alloy Steel Electrodes (LASES) are commonly used for welding and repair applications in industries such as vehicle manufacturing, general construction and shipbuilding. LASES are available in a range of sizes and shapes, from carefully manufactured rods to simple wire. As with all welding materials, the size and shape of the LASES must be carefully considered to ensure the best possible weld quality and consistency. This article outlines the guidance provided in the 1995 Chinese national standard GB/T 5118 concerning the sizes allowed by LASES.
The main purpose of GB/T 5118 is to ensure welding quality and consistency when using LASES. The standard ensures that all LASES used by welders in China must meet certain dimensions and shapes.
The standard covers the dimensions and shapes of LASES. It begins by detailing the rod and wire diameters, with the rod diameter ranging from 1.2mm to 8.0mm and the wire diameter ranging from 0.6mm to 5.0mm. It then explains how the rod and wire shapes should correspond to the overall rod diameter. The rod should have a circular cross-section, whilst the wire should be either round, square, triangular or hexagonal. The standard goes on to explain that the rod and wire should also comply with certain surface smoothness and flaw requirements.
It is important to note that the sizes specified in GB/T 5118 are not necessarily the same as those used outside of China. Welders must pay close attention to this when comparison shopping for LASES.
In conclusion, the Chinese national standard GB/T 5118 outlines the size and shape requirements that must be met by LASES used in China. LASES supplied in other countries may not necessarily comply with the requirements of this standard, and welders must bear this in mind when defying the size and shape of the LASES they use.
