DH40 Shipbuilding Steel Plate

DH40 is primarily used for high-strength hull structures, decks, bulkheads, and critical marine components of vessels operating in cold waters, including ice-class vessels. It is ideal for applications requiring both high strength (390 MPa yield) and reliable -20°C impact toughness in cold climate regions.

The main difference is yield strength. Both DH32 and DH40 are impact tested at -20°C, but DH32 has a minimum yield strength of 315 MPa, while DH40 has a higher minimum yield strength of 390 MPa. DH40 provides superior load-bearing capacity for more demanding structural applications.

DH40 is impact tested at -20°C (-4°F) in accordance with classification society requirements for cold climate marine service conditions, same as DH32 but with higher strength.

We provide EN 10204 3.1 mill test certificates along with classification society approval certificates for each shipment, including specific documentation for -20°C impact testing and 390 MPa yield strength verification.

Yes, we can supply DH40 plates with certifications from major classification societies including ABS (American Bureau of Shipping), BV (Bureau Veritas), DNV (Det Norske Veritas), LR (Lloyd's Register), CCS (China Classification Society), NK (Nippon Kaiji Kyokai), KR (Korean Register), and RINA. We can work with your designated classification society to meet specific project requirements for high-strength applications.

Yes, we can arrange third-party inspections from organizations like SGS, Bureau Veritas, TUV, or Lloyd's Register upon customer request, including verification of -20°C impact test results and 390 MPa yield strength testing.

Yes, we specialize in customized solutions. We can supply DH40 plates according to your specified dimensions, thicknesses, and classification society requirements for high-strength applications. We also provide EN 10204 3.2 certificates upon request.

Delivery time for customized orders: Approximately 20 days for hot-rolled plates and 35-55 days for normalized plates, depending on specifications.

We offer flexible MOQ options. For hot-rolled plates, typical lead time is around 20 days. For normalized plates, expect 35-55 days depending on specifications and quantity. We do not have a mandatory requirement for the minimum order quantity of high-strength shipbuilding steel plates between 10-50mm, and we can basically provide them according to the quantity you need.

The price of DH40 steel plate fluctuates based on raw material costs, thickness, dimensions, purchase volume, and market conditions. DH40 typically commands a premium over DH32 due to its higher strength specifications. For the most accurate and competitive real-time quotation, please contact our sales team with your specific requirements (grade, size, quantity, destination port, and any special certifications needed). We provide competitive pricing and respond within 24 hours.

We maintain strategic inventory of D-grade high-strength ship plates including DH40. The inventory we maintain is often the portion exceeding specific customer orders. For accurate real-time stock levels of DH40, please contact our sales team or use our stock inquiry system.