How much do you know about the weld gap of thin-walled spiral steel pipe?1. If the gap is too large, the proximity effect will be reduced, the eddy current will be insufficient, and the weld will not be fused or cracked due to poor intercrystalline joints.2. If the gap is too small, the proximity ef

Method of straightening straight seam steel pipe:1. The straight seam steel pipe bends in the same direction as the weldReason: Insufficient normalizing of the weld seam, thermal stress exists on the side of the pipe close to the weld seam, so it will bend in one direction after cooling.Solution: 1.

Surface processing of spiral steel pipeThe surface treatment of spiral steel pipes mainly uses wire brushes and other things to polish the surface of the steel, which can remove loose or warped oxide scale, rust, welding slag, etc. Hand-operated tools can reach Sa2 level for rust removal, and power

Product: Stainless Steel Pipe. Standard: ASTM A312. Material: 304. To cooperate with threeway for more than 10 years, which fully reflects the customer's 100% trust in us and also verifies the product quality of Threeway. Threeway Steel devoted ourselves in the industrial steel pipe manufacturing. T