DIN/EN Steel pipes

DIN Standards are the results of work at national, European and/or international level.

Our products for DIN/EN Standard has been listed as follows:

European Standards for steel

With so many European Standards specifying steel and steel products and replacing national standards, it is necessary to have a European designation system for steel.

Executive standard Steel code/ Steel grade and application
DIN 17175 Seamless Steel Tubes for Elevated Temperature
St35.8,St45.8, 10CrMo910, 15Mo3, 13CrMo44, STPL340, STB410, STB510, WB36
BS3059 II 360 BS 3059-2:1990 requirements for tubes not exceeding 127 mm outside diameter and 12.5 mm thickness.
BS3059-II 440 BS 3059-2:1990 requirements for tubes not exceeding 127 mm outside diameter and 12.5 mm thickness. Depending on the operating temperature, it can be divided into two kinds general boiler pipes and high-pressure boiler pipes.
DIN 1629 DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.
Main grade: St37.0, St44.0, St52.0
DIN 2391 DIN 2391-81 Part 2 defines the technical delivery conditions for seamless precision steel tubes according to DIN 2391 Part 1 which are made from the steel grades listed in section 5.
Main grade: St35, St45, St52
EN10216-1 P235GH is a European specified steel for use in pressure vessels, boilers and heat exchangers. The composition of this steel makes it ideal for applications where elevated working temperatures are the norm and the material is used by fabricators throughout the oil, gas and petrochemical industry.

Seamless steel tubes for pressure purposes

  • EN 10216-1    Non-alloy steel tubes with specified room temperature properties
  • EN 10216-2    Non alloy and alloy steel tubes with specified elevated temperature properties
  • EN 10216-3    Alloy fine grain steel tubes
  • EN 10216-4    Non-alloy and alloy steel tubes with specified low temperature properties
  • EN 10216-5    Stainless steel tubes
BS3059 Part I, BS3059-I 320 CFS BS 3059 standard accord to the steel boiler and superheater tubes. Part I-87 low tensile carbon steel tube without specified elevated temperature preperites.
BSP British Standard Pipe The British Standard Pipe (BSP) is a family of standard screw thread types that has been adopted internationally for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread.
DIN 2440 Seamless Steel Tubes
St33.2

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DIN/EN steel pipe
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Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.


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