Supply High Precision and Quality St52 Seamless Steel Pipes
Short Description:
Cold drawn seamless steel pipe is made from a seamless steel hollow. It is further processed by cold drawing over a mandrel, to control the ID, and through dies to control the OD. CDS is superior in surface quality, dimensional tolerances and strength when compared to hot finished seamless tubing.Due to the characteristics of high-precision, in precision machinery manufacturing, auto parts, hydraulic cylinders, construction (steel sleeve) industry has a very wide range of applications.
Size: 16mm-89mm.
W.T.: 0.8mm-18 mm.
Shape: Round.
Production type: Cold drawn or cold rolled.
Length: Single random length/ Double random length or as customer’s actual request max length is 10m
Along with the “Client-Oriented” enterprise philosophy, a rigorous high-quality control process, superior production products along with a robust R&D group, we constantly deliver premium quality products, exceptional solutions and aggressive costs for Supply High Precision and Quality St52 Seamless Steel Pipes, We warmly welcome enterprise partners from all walks of daily life, be expecting to establish helpful and cooperative enterprise contact along with you and accomplish a win-win aim.
Along with the “Client-Oriented” enterprise philosophy, a rigorous high-quality control process, superior production products along with a robust R&D group, we constantly deliver premium quality products, exceptional solutions and aggressive costs for ST52 Cold Drawn Seamless Steel Pipe, We’ve exported our solutions all over the world, especially the USA and European countries. Furthermore, all of our merchandise are manufactured with advanced equipment and strict QC procedures to ensure high quality.If you are interested in any of our products and solutions, please don’t hesitate to contact us. We are going to try our best to meet your needs.
|
Standard |
Grade |
Chemical Components (%) |
|||||||
|
|
|
C (Max) |
Si(Max) |
Mn |
P |
S |
Mo |
Cr |
V |
|
DIN2391 |
ST52 |
0.22 |
0.55 |
≤1.60 |
≤0.025 |
≤0.025 |
0.90-1.20 |
/ |
/ |
|
Standard |
Grade |
Mechanical Properties（NBK) |
||
|
Tensile |
Yield |
Elonga-tion |
||
|
DIN2391 |
ST52 |
490-630 |
≥355 |
≥22 |
Annealing
After the goods are cold drawn to sizes, the tubes are put on annealing furnace for heat treatment and normalising.
Straightening
Post annealing, the goods are passed through a seven roller straightening machine to achieve proper straightening of the tubes.
Eddy current
Post straightening, each tube is passed through eddy current machine to detect for surface cracks and other defects . Only the tubes that pass eddy current are fit for delivery to customers.
Finishing
Each tube is either oiled with corrosion resistant oil or varnished for surface protection and corrosion resistant as per customers requirement, each tube end is covered by plastic end caps to avoid damage in transit, the marking and specs are put and the goods are ready for dispatch.
|
Designation |
Symbol |
Description |
|
Cold drawn/hard |
+C |
No heat treatment after the final cold drawing process |
|
Cold drawn/soft |
+LC |
After the final heat treatment there is a suitable drawing pass |
|
Cold drawn and stress relieved |
+SR |
After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere |
|
Annealed |
+A |
After the final cold drawing process the tubes are annealed in a controlled atmosphere |
|
Normalized |
+N |
After the final cold drawing operation the tubes are normalized in a controlled atmosphere |
Cold Drawn Carbon steel seamless pipes are extensively applied in the nuclear device, gas conveyance, petrochemical, shipbuilding and boiler industries, with characteristics of high corrosion resistance combined with suitable mechanical properties.
- Nuclear device
- Gas conveyance
- Petrochemical industries
- Shipbuilding and boiler industries
Along with the “Client-Oriented” enterprise philosophy, a rigorous high-quality control process, superior production products along with a robust R&D group, we constantly deliver premium quality products, exceptional solutions and aggressive costs.
Supply High Precision and Quality St52 Seamless Steel Pipes
We warmly welcome enterprise partners from all walks of daily life, be expecting to establish helpful and cooperative enterprise contact along with you and accomplish a win-win aim.
ST52 Cold Drawn Seamless Steel Pipe
We’ve exported our solutions all over the world. Furthermore, all of our merchandise are manufactured with advanced equipment and strict QC procedures to ensure high quality.If you are interested in any of our products and solutions, please don’t hesitate to contact us. We are going to try our best to meet your needs.
