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SHANDONG HUITONG STEEL CO.,LTD
| Payment Type: | L/C,T/T,D/P |
| Incoterm: | CFR,FOB,CIF,EXW |
| Transportation: | Ocean,Land,Air,Express |
| Port: | Qingdao,Tianjin,Shanghai |
Model No.: AH36 DH36 EH36
Brand: H-TONG
Standard: Aisi, Astm, Bs, Din, Gb, Jis
Place Of Origin: China
Species: Steel Plate
Production Process: Hot Rolled, Cold Rolled
Surface Treatment: Coated
Application: Boiler Plate, Container Plate, Flange Plate, Ship Plate
Special Steel: Wear Resistant Steel, High-Strength Steel Plate
Tolerance: ±1%, ±3%
Category: Low-Alloy Plate, Cold Rolled Steel Sheet, Ship Steel Plate, Boiler Vessel Plate, Hot Rolled Steel Sheet, Steel Plate
| Selling Units | : | Ton |
| Package Type | : | Standard Seaworthy Packing |
| Picture Example | : |
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What is the Shipbuilding Steel Plate
Shipbuilding 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 Classification
The 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 Countries
Shipbuilding 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 Specification
| Product Name | |
| 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 |
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（℃） | 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.
Product Display
Processing Technology
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.
Test Before Delivery
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.
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