TB/T 1979 is Chinese standards. TB/T 1979 05CuPCrNi whether resistant steel plate has the same strong corrosion resistance as American Standard Weathering Steel. .
KR Grade D shipbuilding steel plates have yield strength of 235 MPa, and ultimate tensile strength of 58,000 - 75,500 psi (400-520 MPa).KR Grade D shipbuilding steel plate is a kind of hot rolled general tensile strength steel.