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DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel
DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel
DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel
DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel
Specifications
Brand Name :
WNRLN
Model Number :
ST52-HONED-120x20
Place of Origin :
Shandong, China
Certification :
ISO 9001:2015, DIN EN 10305-1
MOQ :
2 Tons
Price :
USD 1200-1800 / Ton
Payment Terms :
T/T, L/C at sight
Supply Ability :
3000 Tons per Month
Delivery Time :
15-25 working days after order confirmation
Packaging Details :
Individual tube wrapping with VCI rust-proof paper, plastic end caps, bundled in steel frame crates
Material Grade :
DIN 2391 ST52 / 1.0580 / E355
Outer Diameter :
120mm
Wall Thickness :
20mm
Inner Diameter :
80mm after honing
Manufacturing Process :
Seamless Cold Drawn + Skived & Roller Burnished / Honed
ID Surface Roughness :
Ra ≤0.4μm (honing) / Ra ≤0.2μm (SRB)
ID Tolerance :
H8 / H9 per ISO 286
Straightness :
≤1mm per 1000mm
NDT Testing :
100% Ultrasonic Testing, Dimensional Inspection
Description
DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel
DIN 2391 ST52 Cold Drawn Honed Seamless Precision Steel Tube for Hydraulic Cylinders

DIN 2391 ST52 (1.0580 / E355) cold drawn honed seamless precision steel tubes are the industry standard for hydraulic cylinder barrel manufacturing. With a precisely honed or skived-and-roller-burnished (SRB) inner surface, these tubes deliver the tight dimensional tolerances and surface finish required for reliable hydraulic piston seal performance.

Precision Manufacturing Process
  • Cold Drawn Base Tube: Seamless ST52 steel tube cold drawn to achieve close OD/ID/wall thickness tolerances
  • Skiving & Roller Burnishing (SRB): Advanced finishing process removes a thin layer (skiving) then cold-works the ID surface (burnishing) for Ra ≤0.2μm finish
  • Honing Option: Conventional honing available for larger diameters with Ra ≤0.4μm surface finish
  • High Strength Grade: ST52 provides excellent weldability and superior mechanical properties for demanding hydraulic applications
  • Straightness Guaranteed: ≤1mm per meter ensures smooth piston travel without binding
Technical Specifications
Parameter Specification
Standard DIN 2391 / EN 10305-1
Material Grade ST52 / E355 / 1.0580
Tensile Strength ≥520 MPa
Yield Strength ≥355 MPa (at wall thickness ≤16mm)
Elongation ≥22% (longitudinal)
ID Surface Hardness Burnished surface: 10-15% hardness increase
Applications

Hydraulic cylinder barrels, pneumatic cylinders, telescopic cylinders, construction machinery cylinders (excavator, loader, crane), agricultural equipment hydraulic systems, marine steering cylinders, and industrial press cylinders.

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DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel

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Product Detail
Brand Name :
WNRLN
Model Number :
ST52-HONED-120x20
Place of Origin :
Shandong, China
Certification :
ISO 9001:2015, DIN EN 10305-1
MOQ :
2 Tons
Price :
USD 1200-1800 / Ton
Contact Supplier
DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel
DIN 2391 ST52 Precision Seamless Steel Tube 120mm OD 20mm WT Cold Drawn Honed for Hydraulic Cylinder Barrel

ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD

Verified Supplier
7 Years
jiangsu
Since 1985
Business Type :
Manufacturer, Exporter
Main Products :
Boiler Steel Tube, Seamless Boiler Tubes, Boiler Fin Tube
Total Annual :
100000000-110000000
Employee Number :
600~700
Certification Level :
Verified Supplier
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