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ASTM A131 A B D E CS Shipbuilding Plate

ASTM A131 is A structural grade of steel plate utilized almost exclusively in the shipbuilding industry.
This grade is defined as ordinary strength with specified minimum yield of 34KSI(235Mpa).
Applications include barges, marine equipment and ship construction.
These grades are also certified by the American Bureau of Shipping(ABS)

PRODUCT DETAILS

Brief introduction of marine steel plate ASTM A131 A B D E CS
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. The general strength steel s of the China Classification Society are divided into four quality grades: A B D and E.

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

ASTM A131 is A structural grade of steel plate utilized almost exclusively in the shipbuilding industry. This grade is defined as ordinary strength with specified minimum yield of 34KSI(235Mpa). Applications include barges, marine equipment and ship construction. These grades are also certified by the American Bureau of Shipping(ABS)
Shipbuilding is central to America’s identity and American ingenuity shines in its submarines, yachts, cruise ships, and aircraft carriers. Great ships start with high-quality marine grade steel plate and Gnee is proud to supply the American shipbuilding industry with marine and offshore steel that’s corrosion-resistant and tough, demonstrating decreased brittleness, even in cold temperatures, and increased strength to resist force trauma and vibration. All of our marine grade plate meets the standards set by ABS (American Bureau of Shipbuilding), ASTM, and API (American Petroleum Institute). We’re a trusted supplier of marine & offshore steel plate across world and service shipbuilders

Specifications range
Thickness:2.5-120mm
Width:1000-3000mm
Length: As request

 
Chemical composition and mechanical properties
Chemical Requirement for Ordinary-Strength Structural Steel
Element Grade A Grade B Grade D Grade E Grade CS
  Deoxidation and Thickness(t) in mm
  t>2.0 in(50mm) t>2.0 in(50mm) t>1.0 in(50mm)    
C 0.21 0.21 0.21 0.18 0.16
Mn min 2.5XC 0.60 0.60 0.70 1.00
Si 0.50 0.35 0.10-0.35 0.10-0.35 0.10-0.35
P 0.035 0.035 0.035 0.035 0.035
S 0.035 0.035 0.035 0.035 0.035
Ni - - -   -
Cr - - - - -
Mo - - - - -
Cu - - - - -
C+Mn/6 0.40 0.40 0.40 0.40 0.40
 
Grade Tensile Strength ksi(Mpa) Yield Strength min ksi(Mpa) Elongation in 8 in (200mm) % Elongation in 2 in (50mm) min %
Ordinary strength
A B D E and CS
58-75(400-520) 34(235) 21 24

Warehouse storage

Our products has been wildly sold to Northeast, North China, East China, Europe, Middle East, Southeast Asia, Australia and ect...Total area of our cooperation factory is approximately 58, 000 square meters, and registered capital is RMB 10 million Yuan, and fixed assets is RMB 50 million Yuan.

 

 

Packaging and shipping

The company specializes in selling steel, with best-selling products including PPGI, galvanized steel coil, steel plate, stainless steel plate, seamless welded steel pipe, aluminum coil, angle steel, H-shaped steel beam, and threaded steel. The product performance indicators have reached the advanced level in China. Our products have been widely sold to Northeast, North China, East China, Europe, the Middle East, Southeast Asia, Australia, etc

 

 

Customer communication

With the strategic thought of striving for survival on the basis of quality and development on the basis of benefit, adhering to management idea of "faith, practical, innovation, and development", we have courage to challenge, and keep continuous innovation in the competition.

 

 

Application area

We also do our unremitting efforts to fight bravely for creating a national brand and international brand. Holding to the intellectual businessman of style and the spirit of sincerity, all staff of our company are willing to cooperate and develop together with you.

 

COOPERATIVE PARTNER


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FAQ

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.

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.

Do you provide custom made Products service?

A: Yes,if you have your own design , we can produce according to your specification and drawing.

What about product prices information?

A:Prices various according to periodic price changes of raw materials.

Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.

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.

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