DIN 1629 carbon seamless steel pipes

DIN 1629 Seamless Steel pipe Of Non Alloys Steels are made of unalloyed steels, it's main grades are St 37.0, St44.0, St52.0.

DIN 1629 carbon seamless steel pipes
DIN 1629 carbon seamless steel pipes

Din 1629 seamless steel pipes application fields are: chemical plant, vessels, pipework construction and for common mechanical engineering purposes. Normally DIN 1629 standard are manufactured with no limiting working pressure values. Working temperature is limited below 300℃.

DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.

DIN 1629 applications the overheated boilers, as minimum thickness ferrite and seamless steel pipes, and as heat exchangers via austenitic pipes.

Application:
It is used for manufacturing pipeline,vessel,equipment,pipe fittings.
The main products of steel / steel grade:

Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .

Size range(mm):

Note:
DN — Nominal Diameter
NPS —Nominal Pipe Size

Chemical Compositions(%) of DIN1629
Grade C Si Mn P S
ST37.0 ≤0.17 / / ≤0.040 ≤0.040
ST44.0 ≤0.21 / / ≤0.040 ≤0.040
ST52.0 ≤0.22 ≤0.55 ≤1.70 ≤0.040 ≤0.035
Mechanical Properties of DIN1629
Grade Yield Strength
(Mpa)
Tensile Strength
(Mpa)
Elongation
(%)L
Elongation
(%)T
ST37.0 ≥235 350-480 25 23
ST44.0 ≥275 420-550 21 19
ST52.0 ≥355 500-650 21 19
Please note the meaning of below abbreviation in table 2:


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.


SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

Link exchange

Copyright © 2011 Sunny Steel Enterprise Ltd.  All Rights Reserved ICP No.:08010763