ST52 Seamless Pipe, DIN 2391 ST52 seamless pipes, ST 52.3 Steel Welded Tube, DIN 2391 ST52 Pipes Manufacturer, ST 52.3 DIN 17100 Honed Tube price in india, ST52 Carbon Steel Pipe distributor
The DIN 2391 standard covers ST52 pipes. Carbon, silicon, manganese, phosphorus, and sulfur are used to make the DIN 2391 St52 Pipe. These pipes are very strong and were made to be more resistant to corrosion. DIN 2391 ST52 possesses excellent mechanical properties. They are made to have a minimum tensile strength of 600Mpa and a minimum yield strength of 520Mpa. The ST52 Steel Tube can be lengthened by at least 14% without being hard to work with. They come in random lengths of one, two, or any length up to 6000mm. ST52 Carbon Steel Pipe is made from steel that has more than 0.30% carbon in it. Both cold rolling and hot rolling are easy ways to make these pipes in different sizes.
The ST52 Pipe is used a lot in oil and gas refineries, food processing, chemical industries, boiler systems, dairy and fluid pipelines, hydraulic systems, and so on. We are the top supplier of ST52 Pipe in Mumbai. Our goal is to sell high-quality goods at prices that are as low as possible. The ST52 Seamless Pipe is made by making a hollow shell out of a billet. This range is part of our broader Carbon Steel Seamless Pipes & Tubes catalog. There is no need to weld or seam these pipes together because they are so strong. The 1.0570 Steel Smls Pipe is easy to bend or flange, and it can easily stand up to high temperatures and pressures. The outside diameter of these pipes ranges from 1/2NB to 60NB. Mild carbon steel is used to make the ST52 0 Seamless Tube, which is very reliable and easy to use. The outside of these tubes is smooth. They last for a long time and are easy to clean and take care of. DIN 1.0570 Seamless Steel Tubes is a pipe that is both cost-effective and effective. It can be used in corrosive environments. All industry standards are used to make these tubes, and they come in different shapes. When moving and supplying fluids over long distances, the DIN2391C Seamless circular tubes are the best choice. These tubes are also used in building in different ways. They are easy to clean and take care of. DIN 1629 ST 52 Plain-end seamless steel tubes are easy to connect to socket-weld connections or slip-on flanges. The run of these tubes makes a 90-degree angle, which makes them a great choice for small diameter piping systems. The DIN 17100 ST 52.3 Welded Tube is made by welding together two or more pieces of steel. The pipe sizes for these tubes range from 5mm to 1219.2mm. All of our products, including the ST52 NBK Steel pipes, can be made to fit your needs in terms of shape and size.
DIN 2391 ST52 Pipes & Tubes: Types and Properties
STKM13A Carbon Steel Tube & Pipe range may also be relevant for comparable hydraulic and structural applications. The ST52.3 Steel Cold Finished Tube is a manganese tube with a low amount of carbon. These tubes can take a lot of punishment and are easy to weld. They can work in temperatures below zero and come in a normalized form. The ST52 S355 Annealed Tube is made to be easy to work with and to bend easily. These tubes are not very hard or brittle, but they are magnetically strong. The amount of carbon in the ST52 Hydraulic Tube is not very high. Different industries choose this grade because it is easy to work with and has very good dimensional tolerances. The dimensions of the ST52 Honed Cylinder Tube are correct. For honed hydraulic cylinder tubing, see our STKM13C Carbon Steel Tubes. The abrasion-resistant stones that are used to polish them make them harder and give them a great finish. ST52-4 Honed Tube can work under high temperatures and pressures. These grades have tubes that can be normalized, have a phosphate finish, or be oiled on the inside and outside. The finish on the ST52-3 BK Honed Tube Tube is smooth and precise. The surface of these tubes is made less tense, and the tubes are annealed to make them more durable in different situations. Our experienced staff uses the best ST52 Steel Material and cutting-edge technology to make the best products in this grade. The EN 1.0570 Precision Steel Tube is different from other types of steel tubes. For other cold-finished mechanical tube options, see our Cold Drawn Seamless Mechanical Tubing range. Due to the way the pipe is made, these tubes are inexpensive and safe from corrosion and wear and tear. There are welded, seamless, and electric resistance tubes for the BKA ST52 Tube. They come in different shapes, such as square, rectangular, circular, hydraulic, and others. Fluids or gasses are moved through commercial and home systems using ST52 BK DIN 2391 Seamless Precision Steel Tubes. The outside diameter of these tubes ranges from 4mm OD to 125mm OD. DIN 2391 ST52 BK+S Seamless Tube has tighter security checks and can handle a wider range of sizes. The impact strength of these tubes is also good. The ends of this DIN 2391 ST52 NBK Tube can be plain, beveled, or threaded. Between 10 SWG and 20 SWG is the standard wire gauge for these pipes. Contact us if you have any questions or would like a quote on our products or the DIN 2391 St52 Pipe.
DIN 2391 St52 Pipe & Tube Specification
| Standard | DIN 2391 |
|---|---|
| Grade | ST52 |
| Size | OD (4-190mm) x WT (0.5-15mm) |
| Outer Dimensions | 4.0mm – 60.0mm |
| Wall Thickness | 0.5mm – 8 mm |
| Length | max 6000mm |
DIN 17100 ST52-3 Chemical Composition
| Standard | Grade | C | Si | Mn | P max | S max |
|---|---|---|---|---|---|---|
| DIN2391 | St52 | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 |
DIN 2391 ST52 Equivalent Grade
For lower-strength applications within the same standard family, see our DIN 2391 ST37 Steel Pipe.
| Country / Standard | Equivalent Grade | Notes / Details |
|---|---|---|
| China (GB Standard) | 16Mn, Q345 | Common Chinese steel grades |
| Germany (DIN Standard) | ST52, ST52.3 | DIN steel equivalents |
| DIN 2391-2 | 1.0580 St52 | Precision seamless tubes |
| DIN 2393 & 2394 | 1.0570 St52-3 | Structural and mechanical applications |
| EN10025 | 1.0570 S355 | European structural steel grade |
DIN2391C Seamless Circular Tubes Mechanical Characteristics
| Cold drawn(Mandatory) | Cold drawn(Soft) | Cold Drawn and Stress Release | Anneal | Normalizing | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BK1) | BKW1) | (BKS) | (GBK)1) | (NBK)1) | ||||||||
| Grade | Tensile | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation | Tensile | Elongation | Tensile | Yield point | Elongation |
| N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | N/mm2 | % | N/mm2 | N/mm2 | % | |
| St52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490~630 | 355 | 22 |
Tolerance of ST52 Honed Cylinder Tube
| Outer Diameter Tolerance in MM | 4-30 | 31-40 | 41-50 | 51-60 | 61-70 | 71-80 | 81-90 | 91-100 |
|---|---|---|---|---|---|---|---|---|
| ±0.08 | ±0.15 | ±0.20 | ±0.25 | ±0.30 | ±0.30 | ±0.40 | ±0.45 | |
| Wall thickness Tolerance | ±10% | |||||||
Weight chart of DIN 2391 ST52 Steel Pipe
Use our Steel Weight Calculator to estimate weight for sizes not listed below.
| Size NPS | Pipe O.D. | Wall Thickness | Pipe I.D. | Weight per Foot | Standard to XXHY | Schedule Pipe # |
Section Modulus | Gallon Capacity Per Linear Foot |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 0.84 | 0.109 | 0.622 | 0.85 | STD | 40 | .0407 | .0158 |
| 0.147 | 0.546 | 1.09 | XHY | 80 | .0478 | .0122 | ||
| 0.188 | 0.464 | 1.31 | 160 | .0528 | .0088 | |||
| 0.294 | 0.252 | 1.72 | XXHY | .0577 | .0026 | |||
| 3/4 | 1.05 | 0.113 | 0.824 | 1.13 | STD | 40 | .0705 | .0277 |
| 0.154 | 0.742 | 1.48 | XHY | 80 | .0853 | .0225 | ||
| 0.219 | 0.612 | 1.95 | 160 | .1006 | .0153 | |||
| 0.308 | 0.434 | 2.44 | XXHY | .1103 | .0077 | |||
| 1 | 1.315 | 0.133 | 1.049 | 1.68 | STD | 40 | .1328 | .0449 |
| 0.179 | 0.957 | 2.17 | XHY | 80 | .1606 | .0374 | ||
| 0.250 | 0.815 | 2.85 | 160 | .1904 | .0271 | |||
| 0.358 | 0.599 | 3.66 | XXHY | .2136 | .0146 | |||
| 1 1/4 | 1.66 | 0.140 | 1.380 | 2.27 | STD | 40 | .2346 | .0777 |
| 0.191 | 1.278 | 3.00 | XHY | 80 | .2913 | .0666 | ||
| 0.250 | 1.160 | 3.77 | 160 | .3421 | .0549 | |||
| 0.382 | 0.896 | 5.22 | .4110 | .0328 | ||||
| 1 1/2 | 1.90 | 0.145 | 1.610 | 2.72 | STD | 40 | .3262 | .1058 |
| 0.200 | 1.500 | 3.63 | XHY | 80 | .4118 | .0918 | ||
| 0.281 | 1.338 | 4.86 | 160 | .5079 | .0730 | |||
| 0.400 | 1.100 | 6.41 | .5977 | .0494 | ||||
| 2 | 2.375 | 0.109 | 2.157 | 2.64 | 10 | .4205 | .1898 | |
| 0.154 | 2.067 | 3.66 | STD | 40 | .5606 | .1743 | ||
| 0.218 | 1.939 | 5.03 | XHY | 80 | .7309 | .1534 | ||
| 0.250 | 1.875 | 5.68 | .8045 | .1434 | ||||
| 0.281 | 1.813 | 6.29 | .8666 | .1344 | ||||
| 0.344 | 1.687 | 7.47 | 160 | .9806 | .1161 | |||
| 0.436 | 1.503 | 9.04 | XXHY | 1.1043 | .0922 | |||
| 2 1/2 | 2.875 | 0.120 | 2.635 | 3.53 | 10 | .6870 | .2833 | |
| 0.203 | 2.469 | 5.80 | STD. | 40 | 1.0640 | .2487 | ||
| 0.216 | 2.443 | 6.14 | 1.1169 | .2435 | ||||
| 0.250 | 2.375 | 7.02 | 1.2468 | .2301 | ||||
| 0.276 | 2.323 | 7.67 | XHY | 80 | 1.3386 | .2202 | ||
| 0.375 | 2.125 | 10.02 | 160 | 1.6371 | .1842 | |||
| 0.552 | 1.771 | 13.71 | XXXHY | 1.9971 | .1280 | |||
| 3 | 3.50 | 0.120 | 3.260 | 4.34 | 1.0411 | .4336 | ||
| 0.156 | 3.188 | 5.58 | 1.3122 | .4147 | ||||
| 0.172 | 3.156 | 6.12 | 1.4265 | .4064 | ||||
| 0.188 | 3.124 | 6.66 | 1.5342 | .3984 | ||||
| 0.216 | 3.068 | 7.58 | STD. | 40 | 1.7241 | .3840 | ||
| 0.250 | 3.000 | 8.69 | 1.9372 | .3672 | ||||
| 0.281 | 2.938 | 9.67 | 2.1207 | .3521 | ||||
| 0.300 | 2.900 | 10.26 | XHY | 80 | 2.2253 | .3431 | ||
| 0.438 | 2.624 | 14.34 | 160 | 2.8774 | .2811 | |||
| 0.600 | 2.300 | 18.6 | XXHY | 3.4243 | .2158 | |||
| 3 1/2 | 4.0 | 0.120 | 3.760 | 4.98 | 10 | 1.3776 | .5768 | |
| 0.226 | 3.548 | 9.12 | STD. | 140 | 2.3939 | .5136 | ||
| 0.250 | 3.500 | 10.02 | 2.6001 | .4998 | ||||
| 0.281 | 3.438 | 11.17 | 2.8562 | .4821 | ||||
| 0.318 | 3.364 | 12.52 | XHY | 80 | 3.1400 | .4617 | ||
| 0.636 | 2..728 | 22.87 | XXHY | 4.8795 | .3085 | |||
| 4 | 4.5 | 0.120 | 4.260 | 5.62 | 10 | 1.7612 | .7404 | |
| 0.156 | 4.188 | 7.24 | 2.2354 | .7156 | ||||
| 0.188 | 4.124 | 8.67 | 2.6296 | .6942 | ||||
| 0.203 | 4.094 | 9.32 | 2.8173 | .6838 | ||||
| 0.219 | 4.062 | 10.02 | 3.0184 | .6725 | ||||
| 0.237 | 4.026 | 10.80 | STD. | 40 | 3.2145 | .6613 | ||
| 0.250 | 4.000 | 11.36 | 3.3611 | .6528 | ||||
| 0.281 | 3.938 | 12.67 | 60 | 3.7021 | .6326 | |||
| 0.312 | 3.876 | 13.97 | 4.0273 | .6126 | ||||
| 0.337 | 3.826 | 15.00 | XHY | 80 | 4.2713 | .5972 | ||
| 0.438 | 3.624 | 19.02 | 120 | 5.1790 | .5361 | |||
| 0.531 | 3.438 | 22.53 | 160 | 5.8997 | .4822 | |||
| 0.674 | 3.152 | 27.57 | XXHY | 6.7927 | .4054 | |||
| 5 | 5.563 | 0.188 | 5.187 | 10.80 | 4.1161 | 1.0979 | ||
| 0.219 | 5.125 | 12.51 | 4.7279 | 1.0716 | ||||
| 0.258 | 5.047 | 14.63 | STD. | 40 | 5.4500 | 1.0391 | ||
| 0.281 | 5.001 | 15.87 | 5.8644 | 1.0204 | ||||
| 0.312 | 4.939 | 17.51 | 6.4074 | .99647 | ||||
| 0.344 | 4.875 | 19.19 | 6.9358 | .9696 | ||||
| 0.375 | 4.813 | 20.80 | XHY | 80 | 7.4300 | .9449 | ||
| 0.500 | 4.563 | 27.06 | 120 | 9.2534 | .8495 | |||
| 0.625 | 4.313 | 32.99 | 160 | 10.7976 | .7590 | |||
| 0.750 | 4.063 | 38.59 | XXHY | 12.0954 | .6734 | |||
| 6 | 6.625 | 0.109 | 6.407 | 7.59 | 5 | 3.5769 | 1.6748 | |
| 0.134 | 6.357 | 9.30 | 10 | 4.3475 | 1.6488 | |||
| 0.156 | 6.313 | 10.79 | 5.0107 | 1.6260 | ||||
| 0.188 | 6.249 | 12.94 | 5.9351 | 1.5937 | ||||
| 0.203 | 6.219 | 13.94 | 6.3804 | 1.5780 | ||||
| 0.219 | 6.187 | 15.00 | 6.8261 | 1.5620 | ||||
| 0.250 | 6.125 | 17.04 | 7.6905 | 1.5306 | ||||
| 0.280 | 6.065 | 18.99 | STD. | 40 | 8.4958 | 1.5008 | ||
| 0.312 | 6.001 | 21.06 | 9.3416 | 1.4688 | ||||
| 0.344 | 5.937 | 23.10 | 10.111 | 1.4391 | ||||
| 0.375 | 5.875 | 25.05 | 10.893 | 1.4082 | ||||
| 0.432 | 5.761 | 28.60 | XHY | 80 | 12.224 | 1.3541 | ||
| 0.500 | 5.625 | 32.74 | 13.711 | 1.2909 | ||||
| 0.562 | 5.501 | 36.43 | 120 | 14.9806 | 1.2346 | |||
| 0.625 | 5.375 | 40.09 | 16.1821 | 1.1787 | ||||
| 0.719 | 5.187 | 45.39 | 160 | 17.8243 | 1.0977 | |||
| 0.864 | 4.897 | 53.21 | XXHY | 20.025 | .9784 | |||
| 1.000 | 4.625 | 60.13 | 21.7719 | .8727 | ||||
| 1.125 | 4.375 | 66.14 | 23.1237 | .7809 |
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DIN 2391 ST52-3 Steel Tube & Pipe Applications
- Oil & Gas Industry – Suitable for pipelines, hydraulic systems, and high-pressure applications.
- Offshore and Onshore Services – Ideal for marine environments and structural components.
- Chemical Industry – Resistant to corrosion, making it perfect for chemical processing equipment.
- Sugar Industry – Used in machinery and processing systems due to durability and precision.
- Power Generation Industry – Reliable for boilers, turbines, and other high-temperature applications.
FAQ’s About DIN 2391 ST52 Pipes & Tubes
1. What is the DIN standard for St52?
St52 steel falls under the DIN standard 17100 for structural steel and DIN 2391 for precision seamless tubes. It is widely used in engineering and industrial applications requiring strength and durability.
2. What is DIN 2391 St52 equivalent to?
DIN 2391 St52 is equivalent to EN 1.0570 and S355 in European standards, and 16Mn or Q345 in Chinese GB standards. These equivalents help in selecting compatible materials globally.
3. What is the difference between St52 and St52-3?
St52-3 is a specific grade within the St52 family, offering improved tensile strength and impact resistance. The “-3” designation indicates higher quality control and mechanical properties compared to standard St52.
4. What is DIN 2391 ST52 used for?
DIN 2391 ST52 tube is primarily used in precision and hydraulic applications, including hydraulic cylinders, machine structural parts, and high-pressure fluid systems. Its high tensile strength and good weldability also make it suitable for construction machinery, automotive components, and general engineering applications requiring tight dimensional tolerances and reliable mechanical performance.
5. What are the mechanical properties of ST52 tube?
ST52 tube offers a minimum tensile strength of approximately 600 MPa and a minimum yield strength of around 520 MPa, with elongation of at least 14%. These properties make it significantly stronger than basic carbon steel grades, allowing it to handle higher pressures and loads while remaining workable for bending, welding, and machining.
6. What is the difference between ST52 seamless pipe and welded tube?
ST52 seamless pipe is made by extruding a solid billet into a hollow shape with no weld seam, giving it uniform strength and a smooth, defect-free wall ideal for high-pressure use. ST52 welded tube is formed by rolling and welding steel strip, which is typically more cost-effective for larger sizes or less demanding pressure applications.
7. What industries use ST52 pipe?
ST52 pipe is widely used across oil and gas, hydraulic systems, chemical processing, food and dairy processing, boiler systems, and power generation industries. Its strength, corrosion resistance, and ability to handle high pressure and temperature make it a preferred choice for fluid transport, structural components, and precision machine parts across these sectors.
8. What is the chemical composition of ST52 material?
ST52 material chemical composition is controlled per DIN 17100, with carbon content up to approximately 0.22%, silicon up to 0.55%, manganese up to 1.6%, and phosphorus and sulphur each limited to a maximum of 0.025%. This composition gives ST52 its combination of high strength, good weldability, and reliable mechanical performance.
9. What sizes are available in ST52 welded tube?
ST52 welded tube (per DIN 17100) is typically available in pipe sizes ranging from approximately 5mm up to 1219.2mm, while precision seamless tube under DIN 2391 covers outer diameters from about 4mm to 190mm with wall thicknesses from 0.5mm to 15mm. Custom sizes outside these ranges can be manufactured on request.
10. What testing and certification is available for DIN 2391 ST52 tubes?
DIN 2391 ST52 tubes can be supplied with EN 10204 3.1 mill test certificates confirming chemical composition and mechanical properties, along with third-party inspection on request. Standard testing typically includes dimensional inspection, tensile testing, and chemical composition verification to ensure the material meets DIN 2391 and DIN 17100 requirements.
11. Can ST52 be substituted with another steel grade?
ST52 is often substituted with its recognized equivalents, such as EN S355 (1.0570), Chinese 16Mn or Q345, depending on regional availability and application requirements. While these grades share similar chemical composition and mechanical properties, it’s important to verify exact tolerances and certification requirements with your supplier before substituting on a critical project.
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Get a Competitive Quote for DIN 2391 ST52 Steel Tubes & Pipes
Amardeep Steel Centre supplies DIN 2391 ST52 steel tubes and pipes with complete documentation including EN 10204 3.1 mill test certificates, third-party inspection on request, and full material traceability. Ready stock available in Mumbai with worldwide export capability. We source material from leading European, Indian, Japanese, and Korean mills to meet demanding hydraulic, mechanical, and structural application requirements.
