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ភាសាខ្មែរSeamless steel pipe Ø102 standard ASTM A106/A53 is widely used in oil and gas, chemicals, construction, and many other fields.
With chemical composition and mechanical properties meeting ASTM A106/A53 standards. Ø102 seamless steel pipe ensures high durability and strength. At the same time, it has good heat resistance and corrosion resistance.
In this article, Bao Tin Steel will introduce the chemical composition, mechanical properties, technical specifications, and applications of seamless pipe steel Ø102 standard ASTM A106. So that readers can better understand this product. At the same time, it can help you in the process of calculating and choosing steel pipes.
First, let’s briefly learn about the technical specifications of Ø102 seamless pipes.
What is Ø102, DN 90 seamless steel pipe?
Ø102 seamless steel pipe is a term that refers to the size of seamless steel pipes, where Ø102 represents the outside diameter of the pipe, about 102 mm, and the nominal size, DN90.
The thickness and length of steel pipes can be cut (adjusted) according to customer requirements, providing high flexibility in use. In particular, compared to the welding method, this type of pipe will have outstanding durability and is the choice in many industrial applications.
Technical specifications of seamless steel pipe Ø102
The parameter data below is quoted from standards ASME/ANSI B 36.10 and ASME/ANSI B 36.19. Readers can read these two technical documents to better understand. Or see the information below quickly.
- Product name: seamless steel pipe Ø 102
- Outer diameter: 101.6 mm
- Nominal diameter: DN 90
- Nominal size: NPS 3.1/2
- Wall thickness: 2,108 mm–16,154 mm
- Standard length: 6m, 12 m, or cut as required.
- Seamless steel pipe standards: ASTM A106, A53, API 5L,…
- Application: oil and gas, chemicals, construction,…
- Origin: Imported from China, Taiwan, Korea, Japan,…
Note: Specifications may vary depending on the manufacturer and customer requirements.
| SIZE | SCHEDULE | OUTSIDE DIAMETER – D – |
THICKNESS – T – |
INSIDE DIAMETER – D – |
ACREAGE PIPES AREA | WEIGHT OF PIPE | WEIGHT OF WATER | PERMITTED WORKING PRESSURE (PSI) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Working temperature (oC) | |||||||||||||||||
| (inches) | (mm) | (mm) | (mm) | (mm) | (cm2) | (kg/m) | (kg/m) | 37,78 | 93,33 | 148,89 | 204,44 | 260 | 315,56 | 343,33 | 371,11 | ||
| Ứng suất cho phép (psi) | |||||||||||||||||
| 20000 | 20000 | 20000 | 20000 | 18900 | 17300 | 17000 | 16500 | ||||||||||
| 3.1/2 | 90 | 5S | – | 101.6 | 2.108 | 97.384 | 74.485 | 5.158 | 7.448 | 1073 | 1073 | 1073 | 1073 | 1014 | 928 | 912 | 885 |
| 10S | – | 3.048 | 95.504 | 71.636 | 7.388 | 7.164 | 2059 | 2059 | 2059 | 2059 | 1946 | 1781 | 1750 | 1699 | |||
| Std | 40 | 5.74 | 90.12 | 63.787 | 13.533 | 6.379 | 2288 | 2288 | 2288 | 2288 | 2162 | 1979 | 1944 | 1887 | |||
| XS | 80 | 8.077 | 85.446 | 57.342 | 18.579 | 5.734 | 2586 | 2586 | 2586 | 2586 | 2444 | 2237 | 2198 | 2133 | |||
| XXS | – | 16.154 | 69.292 | 37.710 | 33.949 | 3.771 | 2946 | 2946 | 2946 | 2946 | 2784 | 2549 | 2505 | 2431 | |||
Allowable pressure equation
The calculation of allowable pressures in the table above is performed with the ANSI/ASME Piping Code B31.1 equation.
P = 2 SE (t – A) / (D – 2 y (t – A))
In there:
- P = allowable pressure (psi)
- SE = maximum allowable stress in the pipe wall (psi)
- t = wall thickness (in) Note: -12.5% manufacturing tolerance on wall thickness was used in the calculations above.
- A = additional thickness depending on pipe type (in) (A = 0 in the calculations above)
- y = a coefficient depending on the material and temperature range (y = 0.4 for the calculations above).
- D = outer (inner) diameter
Effect of chemical composition on Ø102 seamless steel pipes
The chemical composition of steel grade is a very important factor in the production and use of cast steel pipes. These chemical components affect:
- Mechanical properties of Ø102 seamless steel pipes
- Durability of seamless steel pipes
- The hardness of seamless steel pipes
- Determines the load-bearing capacity and durability of the pipe during use.
The chemical constituents may include elements such as carbon, silicon, manganese, sulfur, phosphorus, chromium, nickel, molybdenum, vanadium, titanium, and copper. Each chemical component has a different role and influence on the properties of cast steel pipes.
Knowing the exact chemical composition of the steel grade used to produce seamless steel pipes is necessary. To ensure product quality and uniformity.
If the chemical composition is substandard or defective, it can lead to differences in the mechanical properties and durability of the seamless steel pipe. This can affect the safety and reliability of the piping system.
Therefore, accurately determining and controlling the chemical composition of steel grades is very important.
Seamless steel pipe DN90 standard ASTM A106
Requires chemical composition
Below is the chemical composition table of seamless steel pipes according to ASTM A106 standards in general and A106 Ø102 seamless pipes in particular:
Chemical composition table
| Steel grade | Chemical composition of seamless steel pipe 102 – A106 | |||||||||
| C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V | |
| Gr.A | 0,25 | 0,27-0,93 | 0,035 | 0,035 | 0,1 | 0,4 | 0,4 | 0,15 | 0,4 | 0,08 |
| Gr.B | 0,3 | 0,29-1,06 | 0,035 | 0,035 | 0,1 | 0,4 | 0,4 | 0,15 | 0,4 | 0,08 |
| Gr.C | 0,35 | 0,29-1,06 | 0,035 | 0,035 | 0,1 | 0,4 | 0,4 | 0,15 | 0,4 | 0,08 |
Required mechanical properties
Below is a table of mechanical property requirements for ASTM A106 seamless steel pipes in general and A106 DN90 seamless pipes in particular:
Mechanical properties table
| Mechanical properties of Ø102 seamless pipe steel | Grade A | Grade B | Grade C |
| Tensile strength, min, psi | 58.000 | 70.000 | 70.000 |
| Yield stress, min, psi | 36.000 | 50.000 | 40.000 |
Seamless steel pipe DN90 standard ASTM A53
Requires chemical composition
Below is the chemical composition table of seamless steel pipes according to ASTM A53 standards in general and A53 DN90 seamless pipes in particular. We invite you to follow along!
Chemical composition table
| Steel grade | Chemical composition of seamless pipe steel Ø102 – A53 | ||||||||
| C | Mn | P | S | Cu | Ni | Cr | Mo | V | |
| Gr.A | 0,25 | 0,95 | 0,05 | 0,045 | 0,4 | 0,4 | 0,4 | 0,15 | 0,08 |
| Gr.B | 0,3 | 1,2 | 0,05 | 0,045 | 0,4 | 0,4 | 0,4 | 0,15 | 0,08 |
Required mechanical properties
Below, Bao Tin Steel will provide a table of mechanical property requirements for seamless pipe products according to ASTM A53 standards in general, A53 Ø102 seamless pipes in particular:
Mechanical properties table
| Mechanical properties of Ø102 seamless pipe steel | Grade A | Grade B |
| Tensile strength, min, psi | 48.000 | 60.000 |
| Yield stress, min, psi | 30.000 | 35.000 |
Advantages of Ø102 seamless pipes
DN90 seamless steel pipes have many advantages, but the most outstanding are:
- Durable. Because Ø102 cast pipes have good bearing capacity, bending resistance, and high hardness,.
- High-dimensional accuracy. Because DN90 seamless pipes are created from the seamless steel pipe production process, their dimensional accuracy is high. Thereby ensuring uniformity and accuracy of details during the assembly process.
- Corrosion resistance. You may not know that DN90-molded pipes can be produced with different protective coatings. Because of this, the corrosion resistance and durability of steel pipes in humid environments or containing corrosive substances are higher than in some other types of steel pipes.
Application of Ø102 seamless steel pipe according to ASTM A106/A53 standards
The applications of Ø102 seamless steel pipes are quite many. From energy industries such as oil and thermal power to industry, construction, and urban water supply and drainage.
We can summarize the following six main applications:
- Conducting oil and gas. Ø102 ASTM A106 seamless steel pipe is the ideal material for use in applications that carry oil and gas from wells to processing plants.
- Chemical industry. Ø102 ASTM A106 seamless steel pipes are used in the transportation of liquids and gases in chemical industry applications.
- Cooling system. Ø102 ASTM A106 seamless pipes are used in the cooling systems of power plants, steel mills, and other industrial systems.
- Water treatment system. Ø102 ASTM A106 seamless pipes are used in wastewater treatment and water supply systems.
- Compressed air. Ø102 ASTM A106 seamless pipe is also used in compressed air systems in manufacturing plants, food processing plants, and other industrial applications.
- Heat supply system. Ø102 ASTM A106 seamless pipes are also used in heating systems, including heating systems for buildings and other industrial applications.
Above is some information about Ø102 seamless pipes. If readers need further advice or a purchase, you can contact Bao Tin Steel according to the information below!