Changsha Xiangjia Metal Materical Co., Ltd.

The   X60 straight seam steel pipe   is a grade in the American standard. X60 is the steel grade stipulated by the American Petroleum Institute standard (APL). Its chemical composition: C is less than or equal to 0.28, and MN is less than or equal to 1.40. The yield strength (MPA) of the first-class product is greater than or equal to 414, and the tensile strength (MPA) is greater than or equal to 547. The yield strength (MPA} of the second-class product has a minimum value of 414, and the tensile strength (MPA) of the second-class product has a maximum value of 565. It is equivalent to the steel grade L415 stipulated in the GB/T9711.1 standard in China. X60 is equivalent to the steel grade L415 stipulated in the GB/T9711.1 standard in China. X42 is L290 in China. X52 is L390 in China.

The difference between   straight seam pipe   and   spiral pipe : 1.From the perspective of processing: straight seam pipe are formed by bending steel plates of a certain width into cylinders and then welding them to form. The equipment is simple and the productivity is high. Spiral pipes are made by winding steel plates of a certain width into a tube, and then welding them. The equipment is complicated. At the same time, because the welds are much longer than the straight seam steel pipes, the productivity is relatively low. 2. From the perspective of strength: the internal stress of straight seam steel pipe is distributed along the weld seam after welded, while the internal stress of the spiral steel pipe after welded is evenly distributed in the axial and radial directions, which can partially offset the pressure. So in terms of pressure resistance, spiral steel pipe is stronger. Here is the difference between straight seam pipe and spiral pipe from the perspective of ...