High Quality 20MM A420 Shipbuilding Steel Plate
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Description
Products Description
Mechanical properties:
Yield strength: The yield strength of A420 shipbuilding steel plate is relatively high, generally not less than 420 MPa. This means that when the steel plate is subjected to a certain external force, it can resist deformation and maintain the stability of the structure.
Tensile strength: It is usually between 530 MPa and 680 MPa. The higher tensile strength enables the steel plate to withstand greater tensile force and adapt to various stresses that ships are subjected to during navigation.
Elongation: The elongation is not less than 18%, reflecting the degree of plastic deformation that the steel plate can undergo before fracture. A higher elongation indicates that the steel plate has better toughness and processability.
Impact toughness: In low-temperature environments, A420 steel plate can still maintain good impact toughness, which is crucial for ships sailing in cold sea areas or under extreme climatic conditions.
Specification and size:
Thickness: It is clearly specified as 20 millimeters. This is an important size parameter of this steel plate. Steel plates of different thicknesses are suitable for different parts of ships.
Width: Generally, it is between 1000 millimeters and 3000 millimeters. The common width is between 1000 millimeters and 2200 millimeters. The specific width can be customized according to the needs of shipbuilding.
Length: The length is usually between 1000 millimeters and 12000 millimeters. It can also be cut and processed according to customer requirements.
Mechanical Properties:
|
Grade |
Thickness |
Yieldpoint |
Tensile Strength |
Elongation |
V-impact test |
cold bend test |
|||
|
Temperature |
Average AKV |
b=2a |
b=5a |
||||||
|
lengthways |
crosswise |
||||||||
|
≥ |
|||||||||
|
A |
≤50 |
235 |
400~490 |
22 |
- |
- |
- |
d=2a |
- |
|
B |
0 |
27 |
20 |
- |
d=3a |
||||
|
D |
-10 |
||||||||
|
E |
-40 |
||||||||
Chemical Compositions
|
Element |
% Present (in product form) |
|
Carbon (C) |
0.20 |
|
Silicon (Si) |
1.50 - 2.50 |
|
Manganese (Mn) |
2.00 |
|
Phosphorous (P) |
0.045 |
|
Sulfur (S) |
0.015 |
|
Chromium (Cr) |
24.00 - 26.00 |
|
Nickel (Ni) |
19.00 - 22.00 |
|
Nitrogen (N) |
0.11 |
|
Iron (Fe) |
Balance |




Application fields:
Mainly used in shipbuilding projects, such as the construction of hull structures and the welding of ship plates. Due to its high strength and good toughness, it can meet the strict requirements for steel in the marine environment.
It can also be used in offshore structure projects such as offshore oil platforms and offshore wind power generation equipment. These structures need to bear various loads and harsh climatic conditions in the marine environment. The performance of A420 steel plate can meet the requirements of these applications.
Specification we supply:
|
Thickness |
2-200mm |
|
Width |
1000-4000mm |
|
Length |
5000-15000mm |
Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our High Quality 20MM A420 Shipbuilding Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.
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