Advanced the A242 type 1 weather resistant steel technology

Grade A ship steel is mainly used for the internal frame of the ship and the outer plate bearing general stress. Grade B, Grade D and Grade E ship steel A242 type 1 weather resistant steel can be used for important structures in high stress areas such as hull outer plate and main deck. The Grade E ship steel has good low temperature performance, which is suitable for the hull outer plate, deck, etc. According to the minimum yield strength, the high-strength ship steel is divided into four grades: A, D, E and F. The commonly used high strength ship steels are AH32, DH32, EH32, etc.

A514 gr.A steel coil chemical composition (melting analysis)%
C: 0.15-0.21, Si: 0.40-0.80, Mn: 0.80-1.10, P max.: 0.035, S max.: 0.035, B max.: 0.0025, Cr: 0.50-0.80, Mo: 0.18-0.28, Zr: 0.05-0.15
The mechanical properties in thickness (mm)T≤65
Yield strength (≥Mpa): 690
Tensile strength (Mpa):760-895
Elongation in ≥,%: 18

Both parties shall confirm the A242 type 1 weather resistant steel 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 A242 type 1 weather resistant steel steel plant.