Manufacturer and Global Supplier of DIN2391 ST52 Cold drawn Precision Seamless Tube in China

DIN 2391 seamless precision tubes mainly used in applications — Hydraulic & pneumatic cylinder, Mechanical and Automotive engineering. DIN 2391 St52 Steel Pipe is made with a chemical composition of carbon, silicon, manganese, phosphorous, and sulfur. These pipes are very strong and designed with enhanced corrosion resistance properties. DIN 2391 ST52 possesses excellent mechanical properties. They are designed with a tensile strength of minimum 600Mpa and yield strength of minimum 520Mpa. The ST52 Steel Tube can be easily elongated by a minimum of 14% and still possess good workability. XUD STEEL can process the pipes in various delivery conditions to meet customers’ different specifications. DIN 2391 ST52 Carbon Steel Pipes can be supplied in delivery states such as BK, BKW, BKS, GBK, and NBK. DIN2391 Tubes ST 52 Seamless Pipe is widely used in oil and gas refineries, chemical industries, boiler equipment, fluid pipelines, hydraulic systems, and so on. We are the leading ST52.3 DIN 2393 Hydraulic Pipes suppliers in China. Our goal is to supply high-quality products with the most reasonable Prices.


The ST52 Seamless Tube is a mild carbon steel tube, which is extremely reliable and easy to operate. After cold drawn or cold rolled process, these tubes possess a smooth surface, have a long service life and are easy to clean and maintain. DIN 1.0570 Seamless Steel Tubes is a cost-effective highly efficient pipe. DIN 1629 ST52 seamless steel tubes can be easily be connected to socket-weld connections or in slip-on flanges. These tubes create a 90-degree angle to the tube run, which makes them an ideal option in small diameter piping systems. All our products including ST52 BKS Steel pipes, can be customized in different tolerance and sizes as per your requirements. ST52 S355 Annealed Tube is designed with excellent workability and high ductility. These tubes have low hardness and brittleness but possess good magnetic properties. In the ST52 Hydraulic honing Tube, the concentration of carbon is low. This grade is a preferred choice in different industries due to its excellent machinability and accurate dimensional tolerances. ST52 Honed Cylinder Tube has accurate dimensions. ST52 Honed Tube can withstand extreme working pressures and temperatures. The seamless tubes from these grades are available in delivery conditions of normalized, phosphate finish, and oiled from the interior and exterior. The ST52-3 BKS Honed Tube is made with a smooth and precise finish. The surface in these tubes is relieved of any stress, and the tube is annealed to give it better resistance in various applications. Our experienced R&D Team and workers make ST52 Steel Material to produce the best products with dedicated and committed heart to every customer. If you have any inquiry or want to get a quote on our products or the DIN 2391 St52 seamless Pipe, contact us for more information.

DIN 2393 ST 52-3 Tube and DIN 2391 ST52 Carbon Steel Pipe

Specification: DIN2391-2 ST52, EN10305-1 E355, C45E, ASTM A519 SAE1020, SAE1026, SAE1045, etc

Standard Specification

· European EU EN: E355 (1.0580)

· USA SAE / AISI: Gr.65

· Germany DIN, W. Nr.: 1.0060, E355, St52, St52-3

· France AFNOR: E335, ES355, TS-47a, TU526

· England BS: CEW5, CFS5, E335, ERW5NKM

· Italy UNI: E335, Fe510

· Sweden SS: 1650

· Poland PN: MSt6

· Czechia CSN: 11600

· Austria ONORM: St60F

· Russia GOST: St6sp

· Inter ISO: Fe590

Codes and Standards


Standard OD Size


Wall Thickness


Producing techniques

Hydraulic cold drawn, cold rolled, Seamless, heat-treatment



ID Accuracy

H7, H8, H9

Surface Roughness


Delivery condition

BK(+C), BKW(+LC), BKS(+SR), GBK(+A), NBK(+N).

Tube Tolerance

OD tolerance as per EN10305-2 or DIN2391-1

ST52 Seamless Pipe Equivalent Grade:

China steel grades: GB standard

16Mn, Q345

Germany steel grades: DIN standard

ST52, ST52.3

DIN 2391-2

1.0580 St52

Din 2393 & 2394

1.0570 St52-3


1.0570 S355


DIN 2393 ST 52-3 Tube and DIN 2391 ST52 Carbon Steel Pipe

Mechanical Characteristics  

Delivery condition


Cold Drawn & Stress-Relieved

Steel Grade

Rm MPa


Elongation A5(%)























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