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A588 steel plate

A588 Gr(A, B, K) steel plates are a type of weathering steel, which is a high-strength, low-alloy structural steel material category with high atmospheric corrosion resistance. It is widely used in various weathering building structural components (especially in industrial atmospheric environments) and bridge auxiliary structural components.

A588 Steel Plate Supplier

ASTM A588/A588M A588 steel plate is a high-strength, low-alloy structural steel material category with enhanced atmospheric corrosion resistance.A588M Gr(A, B, K) steel plate is alloyed with elements such as Cu, P, Cr, and Ni. As a result, it forms a protective layer on the surface of the metal base. This protective layer helps the steel achieve high atmospheric corrosion resistance. Therefore, engineers and builders widely use this type of steel in various weathering building structural components, especially in industrial atmospheric environments.
They also commonly apply it in bridge auxiliary structural components.

Performance Properties

  • High Strength: A588M GrB steel plates feature high yield strength and tensile strength, meeting the strength requirements for structural components.
  • Excellent Weather Resistance: Through alloying design, the steel plate forms a protective layer on the surface of the metal substrate. This layer gives the steel plate high resistance to atmospheric corrosion. It is capable of withstanding oxidation, corrosion, and moisture erosion.
  • Excellent Weldability: The steel plate has good weldability, facilitating welding connections during structural manufacturing processes.
  • Good Processability: The steel plate is easy to cut, bend, and form, suitable for various processing requirements.

Package and Shipment

Weather-Resistant Steel Plate supplier

Specification Parameters
Basic Information

A588M Gr(A, B, K) steel plate Chemical Composition

The following composition properties are ASTM specifications for these A588 grades

A588M GrA
Carbon 0.19% max
Manganese 0.80-1.25%
Phosphorus 0.030% max
Sulfur 0.030% max
Silicon 0.03-0.65%
Nickel 0.40% max
Chromium 0.40-0.65%
Copper 0.25-0.40%
Vanadium 0.02-0.10%
A588M GrB
Carbon 0.20% max
Manganese 0.75-1.35%
Phosphorus 0.030% max
Sulfur 0.030% max
Silicon 0.15-0.50%
Nickel 0.50% max
Chromium 0.40-0.70%
Copper 0.20-0.40%
Vanadium 0.01-0.10%
A588M GrK
Carbon 0.17%
Manganese 0.50-1.20%
Phosphorus 0.030% max
Sulfur 0.030% max
Silicon 0.25-0.50%
Nickel 0.40% max
Chromium 0.40-0.70%
Molybdenum 0.10%
Copper 0.30-0.50%
Columbium 0.005-0.05%
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A588 steel plate