Bulb steel welding gasket

The utility model provides a bulb steel welding gasket which can adapt to the need for one-side welding of a butt joint of bulb steel with different specifications and sizes. The bulb steel welding gasket comprises a major angle-shaped welding gasket block; the head end and tail end of an obtuse angle-shaped welding gasket block can be connected with a plane type gasket block; a longitudinal welding line forming groove is formed on the front surface of the major angle-shaped welding gasket block in contact with the back surface of the welding joint; and the front surface is bent to form a 120-degree major angle. In the utility model, a major angle-shaped welding gasket block with a 120-degree major angle is adopted at a bending part, the upper and lower parts are connected with the plane type welding gasket block according to the sizes of the bulb steel with different specifications, and the bulb steel welding gasket is formed after the required length is obtained, thereby improving the welding production eff