ASTM A519 is a standard published by the American Society for Materials and Testing (ASTM) for the manufacture and use of seamless carbon steel and alloy steel machinery tubes. The standard provides detailed requirements and standards for the manufacturing process, inspection and use of pipes.
ASTM A519 Standard Steel Pipe Materials And Manufacturing
ASTM A519 Carbon Steel/Alloy Steel Pipe
The ASTM A519 standard covers several material types, the most common of which are carbon and alloy steel.
- Carbon steel is a basic material of ASTM A519 standard. The main chemical composition is iron and carbon.
- According to the different carbon content, it can be divided into low carbon steel, medium carbon steel, and high carbon steel.
- Carbon steel has excellent machinability and weldability. Suitable for general mechanical structure and engineering applications. For example, manufacturing transmission parts, shaft parts and other key components.
- Alloy steel is the addition of some alloying elements (such as chromium, molybdenum, nickel, etc.) on the basis of carbon steel. In order to improve the mechanical properties of steel, corrosion resistance and high temperature performance.
- Alloy steel seamless steel pipe is widely used in petroleum, chemical, electric power and other industries. For example, aerospace, manufacturing oil well pipes, oil pipelines and other key equipment.
ASTM A519 Pipe/Tube Manufacturing Process
ASTM A519 steel pipe for different pipe materials using different manufacturing processes, such as:
- Carbon steel: Cold drawing process is usually used to improve surface quality and dimensional accuracy.
- Alloy steel: through heat treatment and other processes to adjust its structure and properties.
It is necessary to strictly control the quality of each link in the manufacturing process to ensure that the pipe products produced have high performance and high quality.
ASTM A519 Pipe Grade/Properties
ASTM A519 Pipe Grade/Chemical Composition
ASTM A519 standard for seamless steel pipe chemical composition requirements are very strict. The chemical composition of each steel grade is different, which has a great impact on the performance of the steel pipe, while ensuring the safety and reliability of the pipe in engineering applications.
The following is the ASTM A519 standard grade/Chemical Composition table provided by pandapipe.
|
Grade |
C |
Mn |
P≤ |
S≤ |
Si |
Cr |
Mo |
|
1008 |
≤0.10 |
0.30-0.50 |
0.04 |
0.05 |
– |
– |
– |
|
1010 |
0.08-0.13 |
0.30-0.60 |
0.04 |
0.05 |
– |
– |
– |
|
1018 |
0.15-0.20 |
0.60-0.90 |
0.04 |
0.05 |
– |
– |
– |
|
1020 |
0.18-0.23 |
0.30-0.60 |
0.04 |
0.05 |
– |
– |
– |
|
1025 |
0.22-0.28 |
0.30-0.60 |
0.04 |
0.05 |
– |
– |
– |
|
1026 |
0.22-0.28 |
0.60-0.90 |
0.04 |
0.05 |
– |
– |
– |
|
4130 |
0.28-0.33 |
0.40-0.60 |
0.04 |
0.05 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
|
4140 |
0.38-0.43 |
0.75-1.00 |
0.04 |
0.05 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
ASTM A519 Pipe Mechanical Properties
The mechanical properties of seamless steel tubes according to ASTM A519 are a key factor on which many industrial applications rely.
- High strength and toughness: Through the fine metallurgical process and heat treatment process, the pipe bears pressure and resists shock vibration stress concentration.
- Fatigue resistance: ASTM A519 tubing has a uniform internal structure, no defects, and can maintain stability over a long period of use.
- Corrosion resistance: By adding chromium, nickel and other alloying elements, improve the corrosion resistance of the steel pipe.
- Machining performance: ASTM A519 standard seamless steel pipe is not easy to crack, deformation and other problems in the process of cold bending, welding and cutting.
ASTM A519 Pipe Conclusion
ASTM A519 steel pipe has an indispensable position in the field of modern industrial applications, with the continuous progress of technology and the continuous growth of market demand, the production and application of ASTM A519 steel pipe will also usher in a broader development prospect.
1. What is 4130 per ASTM A519
4130 is a steel grade specified in ASTM A519 for alloy steel pipe production. Because of its good processing properties, toughness and high strength, it is widely used in petroleum, chemical, electric power, nuclear energy and aerospace and other fields.
2. What material is 1026 pipe
1026 pipe is ASTM 1026 carbon steel pipe of High strength low alloy steel (HSLA). It has been designed and controlled by strict chemical composition and mechanical properties, and has good processability and toughness.
