Bearing steel is the steel used to make balls, rollers and bearing rings.Bearing steel has high and uniform hardness and wear resistance, as well as high elastic limit.

In order to ensure the quality of seamless steel pipes, Conson Metal Materials has always insisted on controlling the following aspects:

Cold rolled coils are commonly known as cold plates. It is made of ordinary carbon hot-rolled steel strip and further cold-rolled into a steel plate with a thickness of less than 4mm.

Original surface: NO.1 The surface subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., with thicker thickness ranging from 2.0MM-8.0MM.

Color coated plate in welding due to external factors sometimes appear bubble phenomenon, this phenomenon will make the welding is not solid and also affect the aesthetic degree, so we should try to avoid this situation when welding, then what is the cause of this phenomenon? Only by finding the cause can we solve it better. I'm going to explain it to you.

When inspecting steel bars, the first thing to do is to check the brand number and quality certificate of the steel bars; secondly, to check the appearance, take 5% of the steel bars from each batch, and check that there must be no cracks, wounds, or laminations on the surface, and the bumps on the surface of the steel bars must not exceed the horizontal limit.