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Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
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The round cold drawn seamless steel tube manufactured according to DIN 17175 standards is primarily composed of carbon and alloying elements that enhance its heat resistance and mechanical properties. This composition ensures its suitability for applications involving high temperatures and corrosive environments.
The specifications for the cold drawn seamless steel tube as per DIN 17175 are detailed below:
| Property | Specification |
|---|---|
| Outer Diameter | 6mm to 219mm |
| Wall Thickness | 1mm to 30mm |
| Length | 5.8m, 6m, 11.8m, 12m, or as required |
| Steel Grade | 10CrMo910, 13CrMo44, 15Mo3, etc. |
| Manufacturing | Hot-finished or cold-finished process |
The chemical composition of the round cold drawn seamless steel tube, with various alloying elements, contributes to its heat resistance and overall performance.
| Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.08 - 0.15 |
| Silicon (Si) | 0.10 - 0.35 |
| Manganese (Mn) | 0.40 - 0.70 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.020 |
| Chromium (Cr) | 0.80 - 1.25 |
| Molybdenum (Mo) | 0.44 - 0.65 |
The mechanical properties of the cold drawn seamless steel tube play a crucial role in its application under high temperatures and stress conditions.
| Property | Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength | ≥ 280 MPa |
| Elongation | ≥ 20% |
| Hardness (HB) | ≤ 197 (for normalized tubes) |
The physical properties of the round cold drawn seamless steel tube influence its behavior during various processes and its performance in demanding environments.
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | 1420 - 1460°C |
| Thermal Conductivity | 42.7 W/(m·K) |
| Coefficient of Thermal Expansion | 10.4 × 10⁻⁶/°C |
The cold drawing process employed in manufacturing the seamless steel tube enhances its surface finish, dimensional accuracy, and mechanical properties. This process involves pulling the tube through a die to reduce its diameter and wall thickness.
The round cold drawn seamless steel tube, conforming to DIN 17175 standards, finds extensive application in industries requiring heat-resistant components. Some notable applications include:
Boilers and Heat Exchangers: These tubes are used to withstand high temperatures and pressures in boiler systems and heat exchangers, ensuring efficient heat transfer.
Power Generation: They are employed in power plants to construct superheater tubes, reheater tubes, and steam pipelines, where heat resistance is crucial.
Chemical Processing: The tubes are utilized in chemical plants for conveying corrosive fluids at elevated temperatures, maintaining structural integrity.
Oil and Gas Industry: In refineries and petrochemical plants, these tubes are utilized for high-temperature applications involving transportation of hydrocarbons.
Automotive Industry: Certain engine components that experience high thermal stress, such as exhaust systems, can benefit from the heat-resistant properties of these tubes.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
