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• 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 is the difference between CCS grade A plate and CCS grade B plate

CCS grade A plate and CCS grade B plate are all general strength ship plates. There is a big difference in the content of Mn of CCS grade A plate and CCS grade B plate, and there is no other difference in their chemical composition.

In terms of mechanical properties, the yield strength and tensile strength of CCS grade A plate and CCS grade B plate are the same, the difference is the experimental temperature of impact energy, CCS grade A plate is 20 degrees, CCS grade B plate is 0 degrees.

Impact test must be conducted for all thickness of CCS grade B plate, while impact value is not required for CCS grade A plate below 50mm, and impact test is required only when it is greater than 50mm.

CCS grade B plate is a little more expensive than CCS grade A plate. There are a lot of CCS grade A plate and CCS grade B plates in stock on the market.