The direct-seam welded steel pipe includes double-sided submerged arc welding longitudinally welded steel pipe and high-frequency resistance welding. The length of direct-seam welded steel pipe is mainly divided into fixed length and indefinite length. This is mainly based on customer requirements. The length is generally 6-14 meters.

Straight seam welded steel pipe is a high-frequency welding machine will roll a certain standard strip of steel into a round tube and straight seam welded steel pipe, the shape of the steel pipe can be so round, also can be so square, or irregular, it depends on the fixed diameter rolling after welding.

Nowadays, we have a very wide range of applications for straight-welded steel pipe, but it will inevitably rust in the process of use. The rusty straight-seam welded steel pipe will affect its normal use, so if you find rust, need to clean it up in time, so today tell you several cleaning methods for straight-seam welded steel pipe:

First, we can use solvent or emulsion to clean the surface. This method is very effective against organic matter such as oil or dust on the surface of longitudinal welded pipe.

Secondly, for the rust on the surface, we can use a wire brush and other things to polish the surface of the longitudinally-welded steel pipe to achieve the purpose of rust removal.

Three. Spraying can also be used. This method can not only completely remove rust, oxide, and dirt, but also achieve the required average roughness under the fierce impact and friction of abrasive.

Cangzhou Shenlong Pipe Manufacturing Co., Ltd. cooperates with Baosteel and Baogang to produce large-caliber seamless steel pipe, straight-seam welded pipe, spiral steel pipe, and pipe fittings. The products comply with API, ASTM, DIN, BS, and JIS standards, and can accept SGS, BV, and other inspections. The products are used in oil, natural gas, bridge, water conservancy, and other large-scale projects, which are worthy of trust.