High strength ship steel sheet AH40 is structural steel used in ship building, and it is also known AH40 marine plate. AH40 plate is hot rolled steel plate produced in accordance with the requirements of the classication society for the construction of ship hull structures.
In order to ensure the performance of AH40 ship plates, micro-alloying technology is adopted. By adding Nb, V, Ti and other alloying elements to the AH40 steel, combined with the controlled rolling process, the grain is refined and the toughness is improved.
AH40 marine plate has the ability to resist corrosive effects that are common in a water environment.
High strength ship steel sheet AH40 marine plate chemical composition:
(heat analysis, % max unless otherwise specified)
| C | Si | Mn | P | S | Al Min. | Cb | V | Ti | Cu | Cr | Ni | Mo | Ca | N |
| 0.18 | 0.10-0.50 | 0.90-1.60 | 0.035 | 0.035 | 0.015 | 0.02-0.05 | 0.05-0.10 | 0.02 | 0.35 | 0.20 | 0.40 | 0.08 | 0.005 | - |
High strength ship steel sheet AH40 marine plate mechanical property:
| Grade | Strength | Charpy V Impact Test | ||||
| Thickness | Yield strength | Tensile strength | Temperature | Transverse | Longitudinal | |
| AH40 | mm | Min Mpa | Mpa | 0℃ | J | J |
| t≤50 | 390 | 510-650 | 26 | 39 | ||
| 50<t≤70 | 390 | 510-650 | 31 | 46 | ||
| 70<t≤100 | 390 | 510-650 | 37 | 55 | ||
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Henan BEBON Iron & Steel Co., Ltd was founded in 2000, which initially focus on providing high-quality steel products to serve for China's rapid infrastructure development. Based on the advantages of steel resources in domestic market and good reputation, combining with the huge international market demand for steel products, BEBON started the international business in 2010 and successfully being approved and certified by ISO9001:2008, the Registration number is 626014Q11531R0S. With the quality steel products and professional service, BEBON was award the international acclaim from infrastructure, shipbuilding, petroleum industry etc., and gradually grow into a bright star in the steel export industry .
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