• Improper welding of X80 pipeline may cause cracks
• Brief introduction of API X52 pipeline steel
• The difference between PSL1 and PSL2
• Harm of inclusions in X70 pipeline steel
• API 5L pipeline pipe
• X52 steel plate surface quality standards that need to be met
• The basic production process of API 5L X60 pipeline steel
• The key to Q460D steel welding process
• What does the heat treatment of Q690 Steel include?
• Reasons for choosing Q690D steel

What's the difference about the A36,D36,E36,F36 shipbuilding steel and A40,D40,E40,F40 shipbuilding steel?

The yield strength of A36,D36,E36,F36 shipbuilding steel is no less than 355MPa,and the tensile strength is 490-620MPa.And the A,D,E,F stands for their impact toughness under the temperature of 0°C,-20°C,-40°C and -60°C.

The yield strength of A40,D40,E40,F40 shipbuilding steel is no less than 390MPa,and the tensile strength is 510-660MPa.And the A,D,E,F stands for their impact toughness under the temperature of 0°C,-20°C,-40°C and -60°C.