spiral weld carbon steel pipe 1. Grade: Q345B, API X42 - X80, L245, L555, ... . Standard: SY/T5037-2000, GB/T Spiral weld carbon steel pipeSSAW (Spirally Submerged Arc Welding) pipes are made from hot-rolled steel ... pipes, customers can always find what they need. 1. Material: carbon steel2. Grade: Q345B, API X42 - X80, L245, L555, J55, N803 ...