ABS Grade AH40 DH40 EH40 FH40 Marine Steel Plate
Classification :
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
Grade AH40 steel is the impact force subjected to 0 ° C
Grade DH40 steel impact force at -20 ° C
Grade EH40 steel impact force at -40 ° C
Grade FH40 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.
| Name | Shipbuilding Steel Plate |
| Thickness | 5mm-200mm |
| Width | 1500mm-3000mm Customizable |
| Length | 3000mm-12000mm Customizable |
| Material | AH32, DH32, EH32, FH32, AH36, DH36, EH36, FH36, AH40, DH40, EH40, FH40, CCSA, CCSB, CCSD |
| Classification Code | CCS, ABS, GL, BV, DNV, NK, LR, KR, RINA |
| Features | Waterproof, Non-Slip, Fireproof, Anti-Corrosion, Anti-Static |
| Characteristic | Excellent Tensile Strength, Good Clutch And Welding Performance, High Corrosion Resistance, Sufficient Impact Toughness, Good Plasticity, Good Heat Treatment Control |
| Application | Manufacture Ocean-Going, Coastal And Inland Waterway Navigation Vessels, Fishing Vessels And Marine Engineering Structures |
| Delivery Status | Normalizing, Tempering, First Test, Second Test, Third Test |
Chemical composition and mechanical properties
Chemical Composition
| Steel grade | C | Si | Mn | P | S | Als |
| Grade AH40 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade DH40 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade EH40 | ≤0.18 | ≤0.50 | 0.9-1.6 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade FH40 | ≤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.
Products undergo various tests and inspections to confirm that they comply with customer and industry specifications from raw materials to finished products.
We need to pack the steel appropriately to avoid damage during transportation. Different packaging methods are suitable for different steel types and need to be selected according to the actual situation.
CERTIFICATE OF HONOR
OUR SERVICE
1 : Prime quality and reasonable price.
2 : Wide excellent experiences with after-sale service.
3 : Every process will be checked by responsible QC which insures every product's quality.
4 : Professional packing teams which keep every packing safely.
5 : Trial order can be done in one week.
6 : Samples can be provided as your requirements
FAQ
Q2:Does the product have quality inspection before loading?
A:Of course, all our products have undergone strict quality inspection before packing.
Q3:Can you provide the samples free?Do you have any MOQ limit for products order?
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
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