carbon steel spiral pipe 1. Grade: Q345B, API X42 - X80, L245, L555, J55, N80 2. Standard: SY/T5037-2000, GB/T Carbon steel spiral ... pipes, customers can always find what they need. 1. Material: carbon steel2. Grade: Q345B, API X42 - X80, L245, L555, J55, N803 ... , GB/T9711.1-97, API Spec 5LSpecification of SSAW Steel Pipe:1. Outside Diameter: 219~2420mm,2. Wall Thickness: 5-20mm ...