What material is A588 Gr.K steel plate

Brief introduction of A588 Gr.K steel plate:
A588 Gr.K steel plate is suitable for high-strength low-alloy structural steel for welding, riveting or bolting, mainly for welding bridges and buildings, and it is very important to reduce weight or increase durability. In most environments, the atmospheric corrosion resistance of this steel is significantly better than that of carbon structural steel with or without copper added.

A588 Gr.K steel plate executive standard: ASTM A588/A588M
A588 Gr.K steel plate delivery condition: hot rolled, normalized, tempered, normalized + tempered, quenched and tempered. Different delivery states can be selected according to different needs.

Chemical composition of A588 Gr.K steel plate:

C	Mn	P	S	Si	Ni	Cr	Cu	Mo	Nb
≤0.17	0.50-1.20	≤0.030	≤0.030	0.25-0.50	≤0.40	0.40-0.70	0.30-0.50	≤0.10	0.005-0.05

Mechanical properties of A588 Gr.K steel plate:

Grade	Thickness mm	Tensile strength MPa	Yield Strength MPa	200mm thick elongation A%	50mm elongation A%
A588GrK	≤100	≥485	≥345	18	21
100-125	≥460	≥315	—	21
125-200	≥435	≥290	—	21

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