• 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

Flaw Detection of S235JR steel plate

In the previous article, we wrote about the hot rolling of S235JR steel plates. This article will analyze the flaw detection of S235JR steel plates.

The flaw detection of S235JR steel plate should be carried out according to the European standard and the German flaw detection standard, or according to the flaw detection standard of national standard.

For flaw detection, national standard requires more strictly than the German and the European standard. So, the last two standards are commonly used for the flaw detection of S235JR steel plate with a thickness above 200mm. Thickness exceeding the testing range is considered as unqualified in the national standard , so we generally use the German standard for thick plates.