• API 5CT N80 casing and tubing pipe
• API 5CT K55 casing and tubing pipe
• API 5CT J55 casing and tubing pipe
• EN10028-2 16Mo3 Boiler and Pressure Vessel steel Plate Notch impact energy
• EN10028-2 P265GH Pressure vessels steel equivalents
• EN 10210 S355J2H low alloy carbon structural steel
• EN 10210 S355J0H steel hollow materials
• GB/T 18248 34CrMo4
• GB/T 18248 35CrMo alloy steel
• 30CrMo steel Heat treatment, 30CrMo steel tube/pipe

How many categories does the shipbuilding steel are divided?

The general intensity hull structural steel is divided into A,B,C,D four levels,all of their yield strength is no less than 235 MPa and their tensile strength is 400-520 Mpa,but their impact energy is different which is under the differ temperature. The high intensity hull structural steel divides its intensity level is according to the minimum yield strength, and every intensity level is divided into A,D,E,F levels which is based on the different impact toughness.