We are producing straight welded steel pipe which is made by cold rolled steel strip GB Q195 or Q235, which is similar to DIN S185 and DIN S235
Cold Rolled Straight Welded Round Pipe
Executive Standard: ASTM, DIN, JIS, GB
Grade: Q195-Q235
Product | Outside Diameter | Thickness |
Inches | MM | Inches | MM |
Black annealed pipes | 0.3150-3.9370 | 10-100 | 0.0118-0.0787 | 0.3-2.0 |
Bright pipes | 0.3150-3.9370 | 10-100 | 0.0118-0.0787 | 0.3-2.0 |
Pre-galvanlized pipes | 0.3150-3.9370 | 10-100 | 0.0118-0.0787 | 0.3-2.0 |
Cold hard pipes | 0.3150-3.9370 | 10-100 | 0.0118-0.0787 | 0.3-2.0 |
Cold rolled steel is metal that has been made by rolling. When they cold roll steel, it is to get a better finish or more strength. Cold rolled steel is made by passing the steel through a number of rollers after the metal has cooled from initial production. The steel is reduced in thickness incrementally as it passes through the rollers. Cold rolled steels tend to have lower carbon content than hot rolled steels, making them more durable. They can also be rolled to more specific dimensions due to the lack of shrinkage that occurs with hot rolled steels. Cold rolled steels are typically rolled to have a matte appearance. They may also be painted, if it is called for, by removing the lubricants that are frequently applied prior to shipping.
Straight Welding in producing pipe is straight type of ERW. ERW stands for Electric Resistance
welded pipe. A plate rolled to become a pipe and welded using Electric Resistance Welding process.