Description
Due to the harsh working environment of the ship, the hull shell is subject to chemical corrosion of seawater, electrochemical corrosion and corrosion of marine organisms and microorganisms; the hull is subjected to large wind and wave impacts and alternating loads; the shape of the ship is complicated by processing methods, etc. Steel for hull structure is strictly required. First of all, good toughness is the most critical requirement. In addition, high strength, good corrosion resistance, weldability, forming properties and surface quality are required.What is the Shipbuilding Steel PlateShipbuilding steel plate refers to hot-rolled steel for the manufacture of ship structures produced in accordance with the requirements of the construction society. Modern shipbuilding plates have much higher tensile strengths than their predecessors, making them much better suited to the efficient construction of large container ships.
The quality of shipbuilding steels has an extremely large impact on the quality, efficiency, and cost of ships built from those steels. Many steel producers established a system to supply wide and long plates to the shipbuilding industry.Shipbuilding Steel ClassificationThe standard strength steel of China Classification Society is divided into four quality grades: A, B, C, and D, namely, CCSA, CCSB, CCSC, and CCSD. The high strength structural steel regulated by the China Classification Society is three strength grades and four quality grades.
Common grades are A, B, D, E, AH32/36/40, DH32/36/40, and EH32/36/40 which ranged from different strength. The plates usually used to manufacture ship hulls, bulkheads, upper decks and hatch covers for tankers, bulk carriers, container ships and LNG carriers.
For the high strength shipbuilding plates like AH36, DH36, EH36 steel plate, they have been widely used in high stress areas of ships, comparing with general strength steel, they are offering the same strength with the smaller thickness.Shipbuilding Standards from Different CountriesShipbuilding steel plates are produced according to the classification society,different countries refers to offshore and marine steels in different classification society. Mainly as following:
ABS (American Bureau of Shipping)
BV (Bureau Veritas)
CCS (China Classification Society)
DNV (Det Norske Veritas)
GL (Germanischer Lloyd)
HR (Hellenic Register of Shipping)
KR (Korean Register of Shipping)
LR (Lloyd's Register of Shipping)
NK (Nippon Kaiji Kyokai)
RINA (Registro Italiano Navale)
RS (India Register of Shipping)| Product Name | Ship Building Steel Plate |
| Standard | AISI, ASTM, DIN, JIS, GB, SUS, EN, etc. |
| Material | A/B/D/E, A32/D32/E32/F32, A36/D36/E36/F36, A40/D40/E40/F40, A131A/B/D/E/AH32/DH32/EH32, AH36/DH36/EH36, AH40/DH40/EH40, NVA420/D420/E420, NVA460/D460/E460, NVA500/D500/E500, NVA550/D550/E550, NVA, NVD, 16MnL, Q235, Q235B, CCS-A, CCS-B, CCSA, CCSB, CCS, CCSD, CCSE, GL-B, GL-D, GL-E |
| Length | 1000mm-12000mm or as required |
| Width | 600mm-3000mm or as required |
| Thickness | 3mm-300mm or as required |
| Technique | Hot rolled |
| Surface Treatment | Clean, blasting and painting according to customer requirement |
| Thickness tolerance | ±0.15mm |
| Application | To prevent the hull from being corroded by chemical corrosion, electrochemical corrosion and sea life and microorganisms.It is used in make ship body ,decks etc. |
| MOQ | 25tons.We also can accept sample order. |
| Shipment time | Within 15-20 workdays after receiving deposit or L/C |
| Export packing | Waterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required |
| Capacity | 250,000 tons/year |
ApplicationOur steel plates with high wear resistance and good impact performance is good, can be cutting, bending, welding, etc., can adopt welding, plug welding, bolt connection way to connect with other structures, such as the scene of the maintenance process possesses the characteristics of time saving, convenient and widely used in peteoleum, chemical industry, container, shipbuilding, coal, cement, power station, mining, building materials, compared with other materials, has a high cost performance, has been favored by more and more buyers.Chemical Composition| Grade | C max | Si max | Mn | P max | S max | Als min |
| A | 0.21 | 0.50 | ≥ 2.5C | 0.035 | 0.035 | - |
| B | 0.21 | 0.35 | 0.80-1.20 | 0.035 | 0.035 | - |
| D | 0.21 | 0.35 | 0.60-1.20 | 0.030 | 0.030 | 0.015 |
| E | 0.18 | 0.35 | 0.70-1.20 | 0.025 | 0.025 | 0.015 |
| Grade | C | Si | Mn | P | S | Als | Ti | Cu | Cr | Ni | Mo | Nb | V |
| AH32 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| DH32 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| EH32 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| FH32 | ≤0.16 | 0.1~0.5 | 0.9~1.6 | ≤0.025 | ≤0.025 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.80 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| AH36 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| DH36 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| EH36 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| FH36 | ≤0.16 | 0.1~0.5 | 0.9~1.6 | ≤0.025 | ≤0.025 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.80 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| AH40 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| DH40 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| EH40 | ≤0.18 | ≤0.50 | 0.9~1.6 | ≤0.035 | ≤0.035 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.40 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
| FH40 | ≤0.16 | 0.1~0.5 | 0.9~1.6 | ≤0.025 | ≤0.025 | ≥0.015 | ≤0.02 | ≤0.35 | ≤0.20 | ≤0.80 | ≤0.08 | 0.02~0.05 | 0.05~0.10 |
Mechanical Properties| Grade | Thickness(mm) max | Yieldpoint(Mpa) min | Tensile Strength(Mpa) | Elongation(%)min | V-impact test | cold bend test |
| Temperature(ºC) | Average AKV | b=2a 180° | b=5a 120° |
| lengthways Min | crosswise Min |
| A | 50 | 235 | 400~520 | 22 | - | - | - | - | d=2a |
| B | 50 | 235 | 400~520 | 22 | 0 | 27 | 20 | - | d=3a |
| D | 50 | 235 | 400~520 | 22 | -10 | 27 | 20 | - | d=3a |
| E | 50 | 235 | 400~520 | 22 | -40 | 27 | 20 | - | d=3a |
| AH32 | 50 | 315 | 440~570 | 22 | 0 | 31 | 22 | - | d=3a |
| DH32 | 50 | 315 | 440~570 | 22 | -20 | 31 | 22 | - | d=3a |
| EH32 | 50 | 315 | 440~570 | 22 | -40 | 31 | 22 | - | d=3a |
| FH32 | 50 | 315 | 440~570 | 22 | -60 | 31 | 22 | - | d=3a |
| AH36 | 50 | 355 | 490~620 | 21 | 0 | 34 | 24 | - | d=3a |
| DH36 | 50 | 355 | 490~620 | 21 | -20 | 34 | 24 | - | d=3a |
| EH36 | 50 | 355 | 490~620 | 21 | -40 | 34 | 24 | - | d=3a |
| FH36 | 50 | 355 | 490~620 | 21 | -60 | 34 | 24 | - | d=3a |
| AH40 | 50 | 390 | 510~660 | 20 | 0 | 41 | 27 | - | - |
| DH40 | 50 | 390 | 510~660 | 20 | -20 | 41 | 27 | - | - |
| EH40 | 50 | 390 | 510~660 | 20 | -40 | 41 | 27 | - | - |
| FH40 | 50 | 390 | 510~660 | 20 | -60 | 41 | 27 | - | - |
Shipbuilding Plate Available Dimensions| Item | Thickness (mm) | Width (mm) | Length/coil diameter(mm) |
| Shipbuilding plate | 6~50 | 1300~3000 | 3000~15000 |
| Shipbuilding coil | 6~20 | 1500~2000 | 760+20~760-70 |
Shipbuilding Steel Theoretical Weight| Thickness (mm) | Estimate Weight | Thickness (mm) | Estimate Weight |
| Kg/ft2 | Kg/m2 | Kg/ft2 | Kg/m2 |
| 6 | 4.376 | 47.1 | 25 | 18.962 | 196.25 |
| 7 | 5.105 | 54.95 | 26 | 20.42 | 204.1 |
| 8 | 5.834 | 62.8 | 28 | 21.879 | 219.8 |
| 10 | 7.293 | 78.5 | 30 | 23.337 | 235.5 |
| 11 | 8.751 | 86.35 | 32 | 25.525 | 251.2 |
| 12 | 10.21 | 94.2 | 34 | 26.254 | 266.9 |
| 14 | 10.939 | 109.9 | 35 | 27.713 | 274.75 |
| 16 | 11.669 | 125.6 | 40 | 29.172 | 314 |
| 18 | 13.127 | 141.3 | 45 | 32.818 | 353.25 |
| 20 | 14.586 | 157 | 48 | 35.006 | 376.8 |
| 22 | 16.044 | 172.7 | 50 | 36.464 | 392.5 |
| 24 | 18.232 | 188.4 | - | - | - |
Product Advantage
1.Resistant to wear and crack
Wear protection, scalable, excellent chemical resistance, good alkali-resistant metal and acid energy
2.High toughness
The elongation is required to be 15%~20% and the impact toughness at room temperature is more than 600KJ/M~800KJ/M. For large welded members, high fracture toughness is also required.
3.Advanced technology
The surface carburized layer hardness is high, to ensure excellent wear resistance and contact fatigue resistance, and has the appropriate plasticity and toughness.
We can produce different sizes, thicknesses, widths and materials according to your requirements
Grade A and B
The general strength of grade A and B shipbuilding steel plates can meet the requirements of process and mechanical properties through ordinary rolling, so the production process is relatively simple.
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.
In 2012, we had become primary sales agent for wear plate of Laiwu Steel Group , xingcheng steel group and xinyu steel group ;primary sales agent for stainless steel of TISCO, JISCO, BAOSTEEL. After years of steel international trade, we gain the customers'trust and good reputation.
In 2019, In order to meet the processing request of more customers, we have added three new machining center divisions, first one is 5000W laser machining center, which can cut and bend according to customer's size, sandblasting machining center, painting processing center, With high quality products and top after-sales service, we have won trust and support of customers from all over theworld. Our steel products have been exported to 80 countries and areas: Chile, Peru, Russia, Mongolia, Philippines, Egypt, SaudiArabia, India, United States, Canada Australia and so on.We will control the quality from part of material steel plate, each plate produced will be have it is own identify label, quality will check the chemical component and physical property and then provide material test certificate. Size dimension will be checked and show pictures to customer to guarantee all goods will be meet requirement.
Accept inspection from a third party designated/paid by the buyer, such as SGS, BV.
Recognized by customers in Malaysia, Indonesia, Singapore, the Philippines, Australia, Peru and the United Kingdom. We have ISO9001/18001, CE certificates.
Our company is a steel supplier from China, located in Liaocheng City, one of the largest steel producers in China. The company integrates the manufacturing, wholesale, material processing and warehousing of stainless steel, aluminum, copper and carbon steel materials, and has established long-term and stable cooperative relations with many well-known steel plants, such as Tisco, Baosteel, Hongwang, Zhangpu, Liangzhong and Jiugang.
Mainly products cover stainless steel coil,stainless steel plates, stainless steel tubes and stainless steel profiles,aluminum coil, aluminum plate, aluminum tubes and aluminum profiles,copper coil, copper plate, copper tube,copper bar,carbon steel coil,carbon steel plates,carbon steel tubes and carbon steel profiles,Our company is equipped with plasma cutting machine, coil flattening equipment, laser cutting machine, 8K mirror, frosted wire drawing, filming and titanium plating equipment, which can flatten, split, shear, oil mill wire drawing, and roll oil film wire drawing on stainless steel materials. , 8K mirror, titanium and other processing.
In addition, the company's characteristic business: zero-cutting, rounding, square cutting, special-shaped cutting, castings, forgings, product thicknesses up to 150mm, various special materials and specifications can be customized to steel mills.
Companies adhering to the "efficient, win-win" business philosophy, continue to provide customers with professional, quality products and value-added services, continuous progress and learning to meet customer needs. Now the company has entered the period of rapid development of global trade, looking forward to more cooperation.
Marketing CampaignPackaging And Transportation
1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.
2) Shipping:We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.
3) Trade terms: FOB/CIF/CFR
4) Shipping port: Qingdao/Tianjin/Shanghai
5) Shipment:a. Length: ≤6m, loaded in 20GP Container.
b. Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm)
Size of 40GP Container (inside:12032*2352*2393mm)
Size of 40HQ Container (inside:12032*2352*2698mm)
6) Delivery time: Normal size: 3-7days send from warehouse directly.
Special size:15-30days custom made for you.
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 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.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
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.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q13:How to pack the products?
A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.
Q14:What is your working time?
A:In general, When you first contacted us, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day. Business in progress, we will be online 24 hours for you.
If you are interested in our products, you can contact me at any time and look forward to our cooperation!
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