Alloy Steel Plate

Hot rolled structural steel plate with 355 MPa minimum yield strength and 470-630 MPa tensile strength. Features Charpy V-notch impact testing at -20°C and equivalents to ASTM A131, ABS DH36/EH36, and DIN St52-3N standards for shipbuilding and industrial applications.

Premium hardened alloy steel plate manufactured to DIN1.6580/30CrNiMo8 standards with thickness range 6-300mm. Features high strength, excellent dimensional stability without twist or bending, and ISO9001:2008 certification. Ideal for heavy machinery, pressure vessels, and structural applications requiring superior durability.

Premium weathering steel sheets offering 2-8 times better corrosion resistance than carbon steel. Available in thicknesses 1.5-200mm with 355MPa yield strength. Ideal for bridges, containers, and structural applications requiring minimal maintenance and extended service life. Third-party inspection available with fast delivery.

High-quality Q235 and Q345 alloy steel plates available in thicknesses from 6-80mm and widths 1600-3200mm. Manufactured to GB standards with multiple grades (A-E) for various applications. Features excellent mechanical properties including 470-630MPa tensile strength and multiple delivery states (AR, CR, TMCP).

SCMV6 ASTM A387 Grade 5 Class 2 alloy steel disk plate with 5% chromium and 0.5% molybdenum. Offers high tensile strength up to 690 MPa and excellent corrosion resistance for elevated temperature pressure vessel applications. Custom sizes available.

AISI 5140 alloy steel plate offers high strength, tenacity, and good hardenability. Ideal for leaf springs and vehicle parts. Available in 3.0-150mm thickness with custom cutting. Complies with ASTM A29 standards. Competitive pricing and fast shipment.

High strength EN 10083-3 41Cr4 alloy steel plate for quenching and tempering. Custom cutting available in widths up to 2500mm. Factory direct from top Chinese mills with SGS inspection. MOQ 1 ton.

High strength SCR440 alloy steel plate in 3.0-150mm thickness. Custom waterjet cutting up to 100mm. Ideal for construction, heavy equipment, and automotive. Factory direct with BAOSTEEL, HBIS. MOQ 1 ton.

DIN A387 alloy steel plate, 3mm hot rolled, for pressure vessels and boilers. Offers high tensile strength, corrosion resistance, and elevated temperature performance. Available in grades 5, 9, 11, 12, 22, and 91. Custom sizes and certifications supported.

ASME SA387 Gr 11 CL2 alloy steel plate offers excellent corrosion and oxidation resistance for elevated temperature pressure vessels. Ideal for oil, gas, and petrochemical industries. Custom sizes available.

High strength 40Cr alloy steel plate, 6mm thick, 1250x3000mm. Tensile strength ≥810 N/mm². Ideal for gears, shafts, and structural components. Custom sizes available. GB3077 certified.

SAPH440 automotive steel sheet, 10mm thick, meets JIS G3113. High strength (≥440 MPa) for frames and wheels. Durable, formable, with custom cutting and fast global shipping from stock.

SAPH440 hot rolled steel plate in 4x8 feet size, ideal for automotive door locks and frames. High strength with 440MPa tensile, excellent formability. Available in T4.0 and T6.0 thickness. Custom cutting and fast delivery from stock.

Hot rolled checkered steel plate with diamond pattern for anti-slip and durability. ASTM A36 certified, available in custom sizes. High strength, good weldability, ideal for construction, machinery, and shipbuilding. Standard export packing.

High strength 41Cr4 alloy steel plate with good hardenability and thermal resistance. Available in 10-140mm thickness with black, milled, or polished surface. Suitable for induction hardening to 52HRC. In stock for immediate shipment. Competitive pricing.

High strength and tenacity ASTM 5140 alloy steel plate, thickness 10-140mm. Offers good hardenability and thermal resistance. Available in stock with custom cutting and competitive pricing. Ideal for vehicle, engine, and machine parts.

High hardness AISI 1566/65Mn alloy steel plate for springs and heavy machinery. Thickness 0.5-40mm, customizable width and length. Excellent durability and tensile strength. Ideal for excavator, loader, and crusher parts. Cutting service available. MOQ 500kg.

ASTM 5140 alloy steel plate offers high tensile strength, fatigue resistance, and good toughness. Ideal for gears, shafts, and machinery parts. Available in 10-140mm thickness with custom cutting. Equivalent to 1.7035 and 40Cr. Suitable for construction and mining equipment.

High-strength 15CrMoR(HIC) alloy steel plate for welded boilers and pressure vessels. Thickness 8-200mm, N+T delivery. 100% ultrasonic inspected, meets ASME SA20/SA20M. Custom sizes available.

SAPH440 is a high-strength automotive structural steel for cold forming. With 440MPa min tensile strength and ≥0.010% Alt, it ensures durability for frames and wheels. JW Steel offers 10,000+ tons in stock, custom cutting, and fast global delivery.