DIN 59411 PDF

European Standard EN has the status of a DIN Standard. DIN , July edition, has been superseded by the. DIN Hollow Sections for Structural Steel Engineering Cold Formed Welded 20t Hollow section DIN 59 – St – 70×70×4 in manufacturing lengths. EN , EN CE MARKED, EN , EN , EN , EN , BS , API 5L, ASTM A53, ASTM A , DIN , DIN

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A spiral hegesztett es hosszhegesztett csoveket els.

A hegesztett csovek atmer. O mm Szabvanyok: Our spiral and longitudinally welded tubes used mainly at the machinery, building an energy sectors. The 5911 diameter sortiment of the welded tubes is untill mm in case of spiral welded tubes and untill mm in case of longitudinally welded tubes. In both welded tube typs there is a possibility to produce and adjust unique and customised wall thickness, outside diameters different from the standard.


In case of steel qualitis the most common structural qualitis available such as the most specific boiler ones. Our boiler tubes are available in welded and seamless and also in carbon and stainless type.

Steel trade and processing

Ouc 5911 can supply boiler tube parts onto the boiler tubes as well like elbows, bottoms, reducers, flanges. Please send Your demand to us!

To customised demands Standards: The advantage of steel tubes for precision applications is the high precision of their manufacturing, the good quality of their surface, and the guaranteed mechanical and technological properties.

That dinn why the pipes are widely used in the machining industry and in the automotive industry. Welded pipes for precision applications are manufactured in the process of cold drawing.

Mechanical properties in room temperature. Chemical composition ladle analysis.

Round Shape ERW Steel Pipe DIN 59411 STN 426937 St37-2 11 373 S235JRG2

Inspection and test list. Without thermal processing, after the process of cold drawing is finished. After final thermal processing, appropriate drawing. Cold drawn and annealed. After the final cold drawing process and annealing thermal processing in a controlled atmosphere. After the final cold drawing process, the pipes are annealed in a controlled atmosphere.


After the final cold drawing process, the pipes are normalized in a controlled atmosphere. Maximum values depending on the delivery condition. Inspection or test type.

Steel trade and processing

One per tested batch. Flattening test or expansion test option NDT of the weld in order to identify any longitudinal discontinuities. NDT in order to detect 95411 leaks.