Hydraulic Shock Absorber Tube – EN 10305-2, SPHC Steel, Cold Drawn Welded (CDW), Ø90.2 x 1.6 mm

Our Hydraulic Shock Absorber Tubes are manufactured using the Cold Drawn Welded (CDW) process from SPHC hot rolled steel, conforming to EN 10305-2 precision tube standards.

These tubes feature excellent dimensional accuracy, weldability, and good surface finish, making them well-suited for heavy-duty hydraulic shock absorbers used in trucks, buses, industrial equipment, and agricultural machinery.

Key Features

·Standard: EN 10305-2 (Welded Precision Steel Tubes)
·Material: SPHC hot rolled steel
·Process:

Cold Drawn Welded (CDW) for accuracy & strength
Excellent weldability & formability
Suitable for large-diameter shock absorber cylinders
Consistent mechanical performance & straightness
Available with additional surface treatments: phosphated, oiled, or e-coated

 Technical Specifications

Common Sizes Available

Manufacturing Process

1. Hot Rolled Strip Steel (SPHC) – base material selection
2. Tube Forming & Welding – electric resistance welded (ERW) into tube shape
3. Cold Drawing – improves dimensional accuracy and mechanical properties
4. Heat Treatment – stress relieving or normalizing for consistency
5. Finishing – cutting, straightening, end preparation
6. Optional Surface Treatments – phosphated, oiled, e-coated for corrosion resistance
7. Inspection & Testing – dimensional checks, weld integrity, straightness

 Advantages

·Cost-effective compared to seamless tubes
·Excellent weldability for shock absorber assembly
·High dimensional accuracy from cold drawing
·Large diameter range for heavy-duty applications
·Flexible surface treatment options

 Applications

 Hydraulic shock absorbers for:

·Heavy trucks & buses
·Agricultural machinery
·Construction equipment
·Industrial dampers
·Also used in hydraulic cylinders where CDW precision tubing is suitable