A588 Grade B weather resistant steel plate fixed rolling

A588M Gr (A, B, K) is atmospheric corrosion-resistant high-strength low-alloy structural steel material category weathering steel, low-alloy high-strength steel products are hot-rolled plates for construction and bridges.

A588GrB steel plate executive standard: ASTM A588/A588M

Delivery status of A588GrB steel plate: hot rolled, normalized, tempered, normal + back, quenched and tempered. Different delivery states can be selected according to different needs.

a588gra is equivalent to the national standard: Q355NH

Chemical composition of A588GrA weathering steel plate:
C≤0.19 Si: 0.3~0.65 Mn: 0.8~1.25 P≤0.03 S≤0.03 Ni≤0.4
Cr: 0.4~0.65 Cu: 0.25~0.4 V: 0.02~0.1

During rolling, the A588GrB steel plate forms a protective layer on the surface of the metal substrate by alloying Cu, P, Cr, N, etc., so that the A588GrB steel plate has high atmospheric corrosion resistance.