A572gr42 Steel Plates Supplier in China

High‑strength, low‑alloy structural steel plate designed for demanding construction and infrastructure projects. Manufactured to meet ASTM A572 requirements, Grade 42 (A572 Gr.42) delivers higher yield strength than common carbon steels (for example, A36), enabling lighter structures or increased load capacity without sacrificing weldability or formability.

Key features

• Conforms to ASTM A572 specification for high‑strength low‑alloy (HSLA) structural plates.
• Grade options: A572 Gr42, Gr50, Gr55, Gr60, Gr65 to match required yield/tensile performance.
• Typical mechanical advantage: Gr42 provides a minimum yield of 42 ksi (~290 MPa), offering improved strength-to-weight over A36.
• Common joining methods: welding, bolting and mechanical fastening; suitable for standard structural fabrication processes.

Available dimensions and forms

• Thickness range: 8 mm – 300 mm.
• Width: 1,500 mm – 4,020 mm.
• Length: 3,000 mm – 27,000 mm.
• Forms: plates (flat sheet), coils, foils, rolls, bars, flats, shim sheet.

Surface finishes and hardness

• Hot rolled plate (HR) and cold rolled sheet (CR).
• Finishes: 2B, 2D, BA, NO.8 (mirror), satin, and plastic‑coated options.
• Hardness options: soft, half‑hard, hard, quarter‑hard, spring‑hard where applicable to product form.

Typical applications

• Structural components for bridges, buildings, towers and heavy civil engineering works.
• Fabricated structural members, frames, girders, and welded assemblies requiring improved yield strength.

Sizing notes

• Common plate sizes include (in feet): 4x4, 4x6, 4x8, 4x10, 4x12, 4x16, 5x8, 5x10, 5x12, 5x16, 6x8, 6x10, 6x12, 6x16, 8x10, 8x12, 8x16. Custom sizes and cut‑to‑length services are typically available.

Ordering and specification

• Specify ASTM A572 and the required grade (e.g., Gr42) when requesting a quotation.
• Provide exact thickness, width, length, surface finish and any testing/certification requirements in your RFQ.

For procurement, request a formal quotation through the marketplace with required dimensions, grade and delivery terms.