... always find what they need. 1. Material: carbon steel2. Grade: Q345B, API X42 - X80, L245, L555, J55, N803. ... Wall Thickness: 5-20mm,3. Length: 3-12m4. Steel Grade: Q345B, API X42 - X80, L245, L555,J55, N805. Standard ... Inspection: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow ...