DIN2391 ST52 Precision Cold Drawn Seamless Steel Tube

The DIN2391 ST52 Precision Cold Drawn Seamless Steel Tube is a high-performance carbon steel pipe manufactured to meet demanding mechanical and hydraulic applications. Designed with precision and strength in mind, this tube offers excellent dimensional accuracy, smooth internal surfaces, and superior tensile properties. It is widely used in hydraulic cylinder manufacturing, mechanical equipment, and automotive engineering.

This product complies with DIN2391 standards, and the ST52 grade ensures optimal strength and machinability for seamless hydraulic systems.

 

 

 

: ST52 (equivalent to E355 / S355)

: DIN2391

: Cold Drawn + Honed or BK/BK+S (Bright annealed / Stress-relieved)

: >= 600 MPa

: >= 355 MPa

: >= 20%

 

ST52 steel is a low-alloy high-strength carbon steel with excellent machinability, weldability, and impact resistance. It is ideal for use in hydraulic and pneumatic systems requiring high performance under pressure.

 

 

	DIN2391
	ST52 / E355
	10mm – 250mm
	1mm – 20mm
	Up to 12 meters or as required
	BK (cold finished), BKS (stress-relieved), honed, phosphated
	As per ISO H8/H9 standard

 

 

✅ High Dimensional Accuracy – Perfect for tight-fit hydraulic systems

✅ Smooth Inner Surface (Ra <= 0.4μm) – Improves fluid flow and reduces friction

 

 

DIN2391 ST52 cold drawn precision seamless steel tube is widely used in:

 

With tight tolerances, excellent surface quality, and high mechanical strength, this tube is a preferred choice for manufacturers across various sectors who require reliable and high-performance steel components.

 

 

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