LR Grade AH32 DH32 EH32 FH32 Marine Steel Plate
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Shipbuilding Steel Plate
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PRODUCT DETAILS
Brief introduction of marine steel plate
Marine steel plate refers to structural steel used in ship building. It is considered a marine grade and must be able to resist corrosive effects that are common in a water environment. To achieve this, special alloying elements are added to these grades in order to defend agaist corrosion.While most carbon steel is not suited for marine environments, there are several marine grade carbon steels that have been approved by the different societies for shipbuilding applications.
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
LR A steel is a kind of hot rolled general tensile strength steel. General-strength LR shipbuilding steel comes in 12 grades of 3 strengths,Grade A is one of the grades. The LR grade A steel plates have yield strength of 235 MPa, and ultimate tensile strength of 400-520 MPa.
Grade A steel is the impact force subjected to 20 ° C
Grade B steel impact force at 0 ° C
Grade D steel impact force at -20 ° C
Grade E steel impact force at -40 ° 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
Chemical composition and mechanical properties
Chemical Composition
| Steel grade | C | Si | Mn | P | S | Als |
| Grade A | ≤0.21 | ≤0.50 | ≥2.5C | ≤0.035 | ≤0.035 | - |
| Grade B | ≤0.21 | ≤0.35 | 0.8-1.2 | ≤0.035 | ≤0.035 | - |
| Grade D | ≤0.21 | ≤0.35 | 0.6-1.2 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade E | ≤0.18 | ≤0.35 | 0.7-1.2 | ≤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
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Warehouse Storage
With 13 years of experience in competitive steel products at home and abroad, to provide reliable services to global customers.The main products are steel pipe, steel plate, steel coil, steel rod, steel strip, section steel, silicon steel, stainless steel series, carbon steel series, aluminum products and so on. Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, bridges, boilers, highway guardrail and other industries.
Packing and shipping
Products are widely used in precision instruments, aviation, ships, automobiles, home appliances, construction, Bridges, boilers, highway guardrail and other industries. Annual sales of more than 6 million tons. Products are exported to more than 80 countries and regions. We have won the recognition of customers with good reputation and good service.
Application field
Our company is located in Room 1910, Building 19, Xingmei Building, Dongchang Road, Dongcheng Street, Liaocheng Economic and Technological Development Zone,. Our main products are steel pipe, steel plate, steel coil, steel strip, section steel, stainless steel series, carbon steel, galvanized color coating series, etc. Products are widely used in precision instruments, aviation, ships, automobiles, medical, construction, Bridges, boilers, parts processing and other industries.
Customer praise
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FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q5:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7.Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
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