Landlord, mechanical properties of CCSB ship plate, that is, structural steel for general strength hull (Grade B):

Steel grade: b

Yield point σ s/MPa: ≥ 22

Tensile strength σ b/MPa: 400 ~ 520

Elongation at break δ/%:≥ 22

Test temperature /℃: 0

Professionals from Shanghai Youma Industry also explained that B-grade steel with a thickness of less than 25mm can be exempted from impact test with the consent of the shipping department.