Astm A131 Ship Building Steel Plate

 

The inspection standards for shipbuilding steel plates mainly include the following aspects:
I. Appearance inspection
Surface quality: Check whether the surface of the steel plate is flat and free from defects such as cracks, bubbles, scabs, folds, and slag inclusions. The surface should be clean and free from pollutants such as oil stains and rust.
Dimensional accuracy: Measure the thickness, width, length and other dimensions of the steel plate to check whether they meet the standard requirements. The dimensional deviation should be within the allowable range.
Edge quality: Check whether the edges of the steel plate are neat and free from defects such as serrations and cracks. The edges should be smooth and free from burrs.
II. Chemical composition analysis
Main elements: Analyze the contents of main elements such as carbon (C), silicon (Si), manganese (Mn), sulfur (S), and phosphorus (P) in the steel plate to ensure that they meet the standard requirements. The contents of these elements will affect the strength, toughness, welding performance, etc. of the steel plate.
Alloying elements: For shipbuilding steel plates containing alloying elements, the contents of alloying elements such as nickel (Ni), chromium (Cr), molybdenum (Mo), etc. also need to be analyzed. The addition of alloying elements can improve the corrosion resistance and strength of the steel plate.

 

Item	Carbon structural steel plate
Introduction	Carbon structural steel plate refers to carbon steel with less than 0.8% carbon. This kind of steel contains less sulfur, phosphorus and non-metallic inclusions than carbon structural steel, and has better mechanical properties. Carbon structural steel can be divided into three categories according to different carbon content: low carbon steel (C≤0.25%), medium carbon steel (C is 0.25-0.6%) and high carbon steel (C>0.6%).
According to different manganese content, carbon structural steel is divided into two groups: normal manganese content (manganese 0.25%-0.8%) and higher manganese content (manganese 0.70%-1.20%). The latter has better mechanical properties. And processing performance.
Standard	ASTM, DIN, ISO, EN, JIS, GB, etc.
Material	A36,A53, A283-D, A135-A, A53-A, A106-A, A179-C, A214-C, A192, A226, A315-B, A53-B, A106-B, A178-C, A210-A-1, A210-C, A333-1.6, A333-7.9, A333-3.4, A333-8, A334-8, A335-P1, A369-FP1, A250-T1, A209-T1, A335-P2, A369-FP2, A199-T11, A213-T11, A335-P22, A369-FP22, A199-T22, A213-T22, A213-T5, A335-P9, A369-FP9, A199-T9, A213-T9, 523M15, En46, 150M28, 150M19, 527A19, 530A30, etc.
Size	Length: 1m-12m, or as required,,Thickness: 0.1mm-300mm, or as required
Width: 0.6m-3m, or as required
Surface	Clean, blasting and painting according to customer requirement.
Application	There are many uses and a large amount. It is mainly used in railways, bridges, and various construction projects to manufacture various metal components that bear static loads, as well as unimportant mechanical parts and general welded parts that do not require heat treatment. Usually used for welding, riveting, and bolting hot-rolled steel plates, steel strips, section steels and steel bars for engineering structures.
Certificates	ISO, SGS, BV.
Package	Standard export package, or as required.
Price term	FOB, CIF, CFR, CNF, Ex-work
Payment	T/T, L/C, Western Union, etc.
Delivery time	Within 7-15 workdays after receiving deposit or L/C
Container size	20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM
40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM
40ft HC: 12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM

 

 

 

III.Nondestructive testing:
Ultrasonic testing: Utilize the propagation characteristics of ultrasonic waves in the steel plate to detect whether there are defects inside the steel plate, such as cracks and inclusions. Ultrasonic testing is one of the commonly used nondestructive testing methods for shipbuilding steel plates. It has the advantages of fast detection speed, high precision, and being harmless to the human body.
Magnetic particle testing: Suitable for detecting defects on the surface and near surface of the steel plate. By applying a magnetic field on the surface of the steel plate and then sprinkling magnetic powder, observe the distribution of magnetic powder to determine whether there are defects. Magnetic particle testing has the advantages of simple operation and low cost, but it can only detect surface and near-surface defects.
Radiographic testing: Use X-rays or gamma rays to penetrate the steel plate to detect internal defects. Radiographic testing has high detection accuracy, but it has a high cost and certain radiation hazards to the human body. Radiographic testing is generally used for the detection of important parts or as a supplement to other nondestructive testing methods.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 Astm A131 Ship Building 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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