BBN offer the A537 CL2 pressure vessel steel sheet hardness

The weldability of A537 CL2 pressure vessel steel sheet is good. It means that under certain process and construction conditions, A537 CL2 pressure vessel steel sheet can obtain good performance after welding. Weldability is a measure of the hot workability of steel. Weldability can be divided into weldability in construction and weldability in use. Weldability in construction refers to the sensitivity of cracking in weld metal and near seam zone, and hardening sensitivity of steel in near seam zone. Good weldability means that under certain welding process conditions, the weld metal and steel near the seam do not produce cracks. Weldability in use means that the mechanical properties of weld and HAZ steel are not lower than those of base metal.

Both parties shall confirm the A537 CL2 pressure vessel steel sheet material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the A537 CL2 pressure vessel steel sheet steel plant.

Penetration testing technology is only suitable for detecting surface defects. It uses penetrant to apply on the surface of the A537 CL2 pressure vessel steel sheet steel plate, then wipes the excess penetrant with the cleaning solution, and then smears the developer. The penetrant remaining in the defect is adsorbed by the developing material, so as to observe the shape of the defect and determine the type of defect. This A537 CL2 pressure vessel steel sheet method requires multiple wipes before and after the inspection, the process is more cumbersome, and can not detect internal defects and rough and dirty steel plates.

By Region: data shows that in the first quarter of Asia, crude steel A537 CL2 pressure vessel steel sheet production was 315.2 million tons, down 0.3% year on year. Crude steel production in the EU region in the first quarter was 38.3 million tons, down 10.0% year on year. The output of crude steel in North America in the first quarter was 29.5 million tons, down 4.0% year on year.