Q235B steel pipe with what electrode

The welding method of Q235B steel pipe includes preparation work, determining welding mode, preheating, controlling welding technique and filling material selection, post-welding treatment and quality inspection. Before starting welding, it is essential to clean the work surface and select the appropriate welding material and equipment. According to the needs, choose arc welding, gas welding and other methods for welding, control the preheating temperature to reduce the risk of crack, adjust the welding parameters such as current, speed and filling material to ensure the quality of the weld.

Finally, the necessary post-welding treatment such as grinding, removing welding slag, and quality inspection of the weld to ensure that the welding quality meets the standard requirements. During the welding process, attention should be paid to safety protection measures to avoid harmful gases and control deformation, while always referring to relevant standards and professional advice to obtain the best results.

The Q235B steel pipe can usually be welded using the following types of welding rods:

1. E6010 electrode: suitable for DC arc welding, deep pass performance is good, suitable for thin plate welding.

2. E6011 electrode: Easy to operate, suitable for DC or AC arc welding, suitable for welding uncleaned surfaces.

3. E6013 electrode: universal electrode, easy to operate, suitable for thin plate and a variety of positions welding.

4. E7018 electrode: high efficiency welding, high weld quality, suitable for high welding quality requirements.

5. Flux-cored wire: such as AWS A5.20E71T-1C /M, etc., suitable for welding Q235B steel pipe, often used for gas shielded welding (MIG).

The selection of welding rod suitable for Q235B steel pipe should take into account the welding process, material thickness, welding position and other factors. It is best to refer to the relevant standards and recommendations of the manufacturer to choose the most suitable welding material.