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DIN 1629 seamless steel pipe is a German standard for seamless steel pipes made from unalloyed steel. It covers three steel grades, St 37.0, St 44.0 and St 52.0, and sets out the chemical composition and mechanical properties for each. DIN 1629 steel pipe is used in chemical plant, vessels, pipework construction and general mechanical engineering.
DIN 1629 seamless steel pipe is intended for working temperatures below 300℃. DIN 1629 has been withdrawn. Its main successor is EN 10216-1, covered below; some uses are now covered by other EN standards.
What to Check When Purchasing DIN 1629 Seamless Steel Pipe
This page lists grade, composition and mechanical property data. Size range, tolerances and test requirements are not listed here; confirm them in the standard text or the purchase specification before ordering.
| Item | What to confirm |
| Standard and edition | State whether the order is to DIN 1629 or to EN 10216-1, and give the edition |
| Steel grade | Grade name and material number, e.g. St 37.0 (1.0254) or P235TR2 |
| Size | Outside diameter × wall thickness, and length (random or fixed) |
| Tolerances | Name the standard that governs diameter, wall thickness and length tolerances in the order |
| Delivery condition | Heat-treatment or delivery condition required, as given in the standard or purchase order |
| Testing | Which tests the order calls for, and which are mandatory under the edition referenced |
| Inspection document | Certificate type required, e.g. an EN 10204 3.1 certificate |
| Service conditions | Operating temperature and medium; design pressure is determined by the applicable design code |
What are the application areas of DIN 1629 seamless steel pipe?
1. Chemical industry: Used for pipelines in chemical plants that carry process media. Unalloyed steel has no special corrosion resistance, so suitability depends on the medium, and a corrosion allowance, coating or lining may be needed.
2. Container manufacturing: Commonly used for tanks that store liquids or gases. The strength of DIN 1629 seamless steel pipes meets the requirements of such containers, provided the design and sealing details are specified correctly.
3. Pipeline engineering: Suitable for general pipeline systems, such as industrial pipelines and building water supply and drainage pipelines. It can withstand a certain pressure within the limits of the design code.
4. Mechanical manufacturing: Widely used in general mechanical engineering, as a structural part or for components with requirements on strength and toughness, such as hydraulic cylinders.
Read a full guide: DIN 1629 Seamless Steel Pipe: Specifications, Steel Grades & EN 10216-1
Article source: https://article-realm.com/article/Business/85733-What-to-Check-When-Purchasing-DIN-1629-Seamless-Steel-Pipe.html
URL
https://www.permanentsteel.com/Permanent Steel Manufacturing Co.,Ltd (PMC) have years of experience in manufacturing of carbon steel pipe, stainless steel tube, hollow section, pipe fittings.(Fluid Pipe/Boiler Tube/Fire Pipe/Line Pipe/Structure Tube) Please refer to: https://www.permanentsteel.com
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