Shandong Jeno Steel Group Co., Ltd.
RINA Grade DH32 Marine Steel Plate
Classification Societies(IACS),formed in 1968.
The RINA fleet is recognized by approximately 116 international
flag authorities. RINA integrated services for the complate shipping
cycle including design, building, shipyard management, inspection
and testing of materials/components and regular inspections to maintain
the class are used by freight, ferries, ro-ro, passenger ships, yachts,
cruise ships, navy, LGN and other
Classification :
Keywords: Handheld refractometer
PRODUCT DETAILS
Structural steel for ship hulls is divided into strength classes according to its minimum yield strength: general strength structural steel and high strength structural steel. Maine steel plate refers to hot rolled steel plate produced in accordance with the requirements of the classication society for the construction of ship hull structures.
There are 9 main classification societies in worldwide.
A.B.S American Bureau of Shipping
B.V. Bureau Veritas
C.C.S. China Classification Society
D.N.V Det Norske Veritas
G.L. Germanischer Lloyd
K.R. Korean Register of Shipping
L.R. Lloyd’s Register of Shipping
N.K. Nippon Kaiji Kyokai
R.I.N.A Registro Italiano Navale
RINA DH32 steel is a kind of hot rolled high tensile strength steel. Higher-strength RINA shipbuilding steel comes in 12 grades of 3 strengths,DH32 is one of the grades. The RINA DH32 grade steel plates have yield strength of 315 MPa), and ultimate tensile strength of 440-570 MPa.
RINA is a founding member of the International Association of Classification Societies(IACS),formed in 1968. The RINA fleet is recognized by approximately 116 international flag authorities. RINA integrated services for the complate shipping cycle including design, building, shipyard management, inspection and testing of materials/components and regular inspections to maintain the class are used by freight, ferries, ro-ro, passenger ships, yachts, cruise ships, navy, LGN and other specialist carrier vessels.
Grade AH32 steel is the impact force subjected to 0 ° C
Grade DH32 steel impact force at -20 ° C
Grade EH32 steel impact force at -40 ° C
Grade FH32 steel impact force at -60 ° C
Shot blasting service
Shot blasting is a method used to clean or polish steel when enhanced surface finishes are required. Shot blasting is used in almost every industry we serve. Especially in shipbuilding, rail,structural fabrication and more.
Specifications range
Thickness:2.5-120mm
Width:1000-3000mm
Length: As request
| Steel grade | C | Si | Mn | P | S | Als |
| Grade AH32 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade DH32 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade EH32 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade FH32 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
Processing for Different Grades
Grade D, E (DH32, DH36, EH 32, EH 36)
Grade D and E series (inlcuding AH32/36, DH32, DH36, EH32, EH36) shipbuilding steel plates require good low temperature toughness and good welding performance. The production high-strength shipbuilding steel plate needs to be normalized by means of controlled rolling and controlled cooling or heat treatment processes with more complete equipment. At the same time, the internal steel purity of the supplied billets is required to be high, especially the content of S, P, N, 0 and H in the steel should be strictly controlled.
Alloy Elements Added to Improve Toughness
In order to ensure the performance of high-strength ship plates, micro-alloying technology is adopted. By adding Nb, V, Ti and other alloying elements to the steel, combined with the controlled rolling process, the grain is refined and the toughness is improved.
Direction of Development for Shipbuilding Plate
High strength, high specification, with the ship's large-scale and safety, and changes in coating specifications, the demand for ordinary A-class panels is gradually reduced, and the demand for high-strength panels is increasing, which is concentrated in large ships of 5m wide. Plate, 200-300mm thickness special thick ship board.
Mechanical Properties
| Steel grade | Yield point/MPa | Tensile point /MPa | Elongation/% | Temperature/° C | V-type impact test | ||
| Akv/J | |||||||
| ≤50MM | 50-70MM | 70-100MM | |||||
| Grade AH32 | ≥315 | 440-570 | ≥22 | 0 | 31/22 | 38/26 | 46/31 |
| Grade DH32 | ≥315 | 440-570 | ≥22 | -20 | 31/22 | 38/26 | 46/31 |
| Grade EH32 | ≥315 | 440-570 | ≥22 | -40 | 31/22 | 38/26 | 46/31 |
| Grade FH32 | ≥315 | 440-570 | ≥22 | -60 | 31/22 | 38/26 | 46/31 |
Warehouse storage
Shandong Jienuo Metal Products Co., Ltd. has a registered capital of 250 million yuan, more than 635 employees, 100 million yuan of property/plant equipment, covering an area of more than 300 acres, and has passed the international quality management system, energy management system, occupational health and safety management system and other standards. The company has advanced production equipment, superb technical force, excellent management and technical personnel, and strong financial strength to provide a strong guarantee for the production of high-quality, sophisticated and cutting-edge products.
Packing and delivery
The company has ISO9001 certification, EU CE10219 system certification, and Swiss SGS quality standard certification. In the future, the company will be a comprehensive modern enterprise featuring international trade and modern logistics as its development direction. Work together to make unremitting efforts for the green future of the steel industry in China and the world.
Application field
Widely used in prefabricated steel structure buildings, glass curtain wall engineering, steel structure engineering, large venues, airport construction, highways, roads, decorative guardrails, tower crane manufacturing, photovoltaic projects, greenhouse agricultural shanty buildings, bridge manufacturing, ships, automobile manufacturing, machinery In many fields such as manufacturing, it has been well received in major construction projects.
Cooperation transaction
Customer Visit Feedback
At the same time, we also look forward to sincere cooperation with customers and friends from all over the world, mutual benefit and win-win results, and common development, and create brilliant!
CERTIFICATE OF HONOR
COOPERATIVE PARTNER
RELATED PRODUCTS
GET A FREE QUOTE