ASTM A131 AH32 DH32 EH32 FH32 Shipbuilding Steel Plate
Keywords:
Shipbuilding Steel Plate
Classification :
Shipbuilding Steel Plate
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.
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 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.
PACKING AND DELIVERY
Packing and delivery
As a one-stop supplier of steel and metal raw materials, we have become the preferred steel supplier for tens of thousands of customers around the world with our strong supply chain, solid expertise and reliable services. Our customers are located in more than 110 countries and regions including Europe, the Middle East, South America, and Southeast Asia.
FACTORY APPEARANCE
The company has been committed to the steel industry for many years, has accumulated rich experience and technology, and has a professional team and advanced production equipment.
APPLICATION AREAS
It is widely used in the fields of construction, machinery manufacturing, transportation, bridge construction, etc.
APPLICATION AREAS
Actively promote the high-end transformation of intelligent steel manufacturing, strive to build a permanent benchmark enterprise in the industry, and continuously contribute wisdom and strength to the development of the steel industry!
RELATED PRODUCTS
GET A FREE QUOTE
Email: tj001@tjbgsteel.com
Telephone: +86-15110142690
WhatsApp: +8615110142690
Address: Room 6-8, Building B, No. 221, Xianfeng East Road, Junliangcheng Street, Dongli District, Tianjin
CONTACT US
Baogang Steel Co., Ltd Powerby : 300.cn SEO BUSINESS LICENSE Privacy Policy
