The development of hot - rolled high - strength ship plate steel mainly went through the following stages:

 

Early Exploration Stage (Early 20th Century - Mid - 20th Century)
During this period, shipbuilding gradually emerged, and the demand for ship plate steel was increasing. The early ship plate steel was mainly ordinary carbon steel, with relatively low strength and simple manufacturing processes. It was usually produced by traditional hot - rolling processes. For example, the ship plate steel used in some small - sized ships at that time was relatively thin, and its strength could only meet the basic navigation requirements.
As the size of ships continued to increase and the navigation environment became more and more complex, higher requirements for the strength and performance of ship plate steel were put forward. This led steel enterprises and scientific research institutions to begin to explore methods to improve the strength of ship plate steel.

 

Technical Development Stage (Mid - 20th Century - End of 20th Century)
Application of Alloying Technology: After the mid - 20th century, alloying technology was gradually applied to the production of ship plate steel. By adding alloy elements such as manganese, nickel, and chromium to the steel, the strength and toughness of the ship plate steel were significantly improved. For example, low - alloy high - strength ship plate steel began to emerge, and its strength was greatly improved compared with ordinary carbon steel, and it could better meet the construction needs of large - sized ships.
Introduction of Controlled Rolling and Controlled Cooling Technology: Controlled rolling and controlled cooling technology was introduced into the production of ship plate steel during this period. By controlling parameters such as rolling temperature, deformation amount, and cooling rate, the microstructure of the ship plate steel was effectively improved, and its strength and toughness were further enhanced. The application of this technology made the performance of ship plate steel more stable and provided a strong guarantee for the safe navigation of ships.
 

 

 

 

 

 

 

 

 

 

 

 

Grade

(wt%)Chemical Composition(wt%)

C

Si

Mi

P

S

Cr

Ni

Mo

Cu

As

Sb

Sn

[H]

12Cr2Mo1R(H)

≤0.15

≤0.15

0.30-0.60

≤0.010

≤0.010

2.0-2.5

≤0.20

0.90-1.10

≤0.20

≤0.016

≤0.003

≤0.015

≤2ppm

 

 

 

 

 

Rapid Development Stage (Early 21st Century - Present)

Promotion of Green and Environment - friendly Production Technology: With the continuous improvement of environmental awareness, green and environment - friendly production technology has been promoted in the ship plate steel industry. Steel enterprises began to adopt cleaner and more efficient production processes to reduce energy consumption and pollutant emissions. For example, some enterprises adopted waste heat recovery technology, wastewater treatment technology, etc., to reduce energy consumption and environmental pollution in the production process.
Rise of Intelligent Production: In recent years, with the rapid development of information technology, intelligent production has gradually emerged in the ship plate steel industry. Steel enterprises began to adopt automated control systems, big - data analysis and other technologies to monitor and optimize the production process in real - time, improving production efficiency and product quality. For example, some advanced hot - rolling production lines can achieve automated rolling, cooling and shearing operations, greatly improving production efficiency and product precision.

 

 

 

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 Building Materical CCS/ABS/BV High-Strength Carbon Ship/Bridge Hot Rolled 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.
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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