Product Description
General Introduction
The ASTM A795m seamless carbon steel tubes are manufactured in accordance with the ASTM A795m standard. They are widely used in various industries due to their excellent mechanical properties and reliability. These tubes can be customized according to different Nps (Nominal Pipe Size) and Od (Outside Diameter) requirements to meet specific application needs.
Material Properties
- High Strength: The carbon steel material used in these tubes provides high tensile strength, enabling them to withstand high pressures and mechanical stresses. This makes them suitable for applications such as oil and gas transportation, where high - pressure resistance is required.
- Good Ductility: They also exhibit good ductility, which means they can be easily formed and bent without cracking. This property is beneficial during the installation and manufacturing processes, allowing for greater flexibility in design and construction.
- Excellent Weldability: The seamless carbon steel tubes have excellent weldability, facilitating the connection of tubes in different lengths and configurations. Welding can be carried out with high quality, ensuring the integrity and reliability of the pipeline system.
Chemical Composition
The chemical composition of the carbon steel typically includes elements such as iron (Fe), carbon (C), manganese (Mn), silicon (Si), and small amounts of other alloying elements. The specific composition may vary slightly depending on the grade and manufacturer, but generally, the carbon content is within a certain range to achieve the desired mechanical properties. The following is a general chemical composition table for reference:
| Element |
Content Range (%) |
| Carbon (C) |
0.10 - 0.30 |
| Manganese (Mn) |
0.30 - 1.00 |
| Silicon (Si) |
0.10 - 0.50 |
| Phosphorus (P) |
≤0.035 |
| Sulfur (S) |
≤0.035 |
Applications
- Oil and Gas Industry: They are commonly used for transporting oil, gas, and other petroleum - based products. The high - pressure resistance and corrosion - resistance of the tubes ensure the safe and efficient transportation of these fluids over long distances.
- Chemical Industry: In the chemical industry, these tubes are used to transport various chemical substances. Their resistance to chemical corrosion makes them suitable for handling corrosive liquids and gases.
- Water and Sewage Systems: They can be used in water supply and sewage disposal systems. The seamless structure of the tubes helps to prevent leakage and ensure the smooth flow of water and sewage.
- Mechanical Engineering: In mechanical engineering applications, such as in the construction of machinery and equipment, these tubes are used for structural support and fluid transportation. Their high strength and good formability make them ideal for various mechanical components.
Customization Advantages
The ability to customize the tubes according to Nps and Od requirements offers several advantages. It allows for precise matching of the tubes to the specific needs of different projects, reducing material waste and improving the overall efficiency of the system. Customization also enables the production of tubes with special dimensions and tolerances to meet the unique requirements of specific applications, providing greater design flexibility for engineers and designers.
| NPS Designator |
Inch |
mm |
Inch |
mm |
lb/ft |
kg/m |
psi |
MPa |
psi |
MPa |
| 3/4 |
1.05 |
-26.7 |
0.083 |
-2.11 |
0.86 |
-1.28 |
500 |
-3.45 |
700 |
-4.83 |
| 1 |
1.315 |
-33.4 |
0.109 |
-2.77 |
1.41 |
-2.09 |
500 |
-3.45 |
700 |
-4.83 |
| 1 1/4 |
1.66 |
-42.2 |
0.109 |
-2.77 |
1.81 |
-2.69 |
500 |
-3.45 |
1000 |
-6.89 |
| 1 1/2 |
1.9 |
-48.3 |
0.109 |
-2.77 |
2.09 |
-3.11 |
500 |
-3.45 |
1000 |
-6.89 |
| 2 |
2.38 |
-60.3 |
0.109 |
-2.77 |
2.64 |
-3.93 |
500 |
-3.45 |
1000 |
-6.89 |
| 2 1/2 |
2.88 |
-73 |
0.12 |
-3.05 |
3.53 |
-5.26 |
500 |
-3.45 |
1000 |
-6.89 |
| 3 |
3.5 |
-88.9 |
0.12 |
-3.05 |
4.34 |
-6.46 |
500 |
-3.45 |
1000 |
-6.89 |
| 3 1/2 |
4 |
-101.6 |
0.12 |
-3.05 |
4.98 |
-7.41 |
500 |
-3.45 |
1200 |
-8.27 |
| 4 |
4.5 |
-114.3 |
0.12 |
-3.05 |
5.62 |
-8.37 |
500 |
-3.45 |
1200 |
-8.27 |
| 5 |
5.56 |
-141.3 |
0.134 |
-3.4 |
7.78 |
-11.58 |
B |
B |
1200 |
-8.27 |
| 6 |
6.63 |
-168.3 |
0.134 |
-3.4 |
9.3 |
-13.85 |
B |
B |
1000 |
-5.51 |
| 8 |
8.63 |
-219.1 |
0.188C |
-4.78 |
16.96 |
-25.26 |
B |
B |
800 |
-4.83 |
| 10 |
10.75 |
-273.1 |
0.188C |
-4.78 |
21.23 |
-31.62 |
B |
B |
700 |
-6.89 |
| A:Schedule 10 corresponds to Schedule 10S as listed in ANSI B 36.19 for NPS 3⁄4 through 6 only. |
| B:Furnace-welded pipe is not made in sizes larger than NPS 4. |
| C:Not Schedule 10. |
Detailed Photos
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