Products
BACKPrecision seamless steel pipe
Honed Tube / Hydraulic Cylinder Tube
Description:
Common Materials
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CK45 / 1045 (45#): General hydraulic cylinders
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E355 / ST52 (16Mn, 25Mn): High‑pressure cylinders
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4130, 4140: Ultra‑high pressure & heavy‑duty
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304, 316 Stainless Steel: Corrosive environments
parameters
Key Specifications
Standards
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EN 10305‑1, DIN 2391, ASTM A513, A519, GB/T 3639
Typical Size Range
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Outside Diameter (OD): 25 mm – 300 mm
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Inside Diameter (ID): 20 mm – 280 mm
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Wall Thickness (WT): 2.5 mm – 20 mm
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Length: 3 m, 6 m (custom length available)
Tolerance & Surface Finish
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ID Tolerance: H7, H8, H9
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Surface Roughness (ID): Ra 0.2 – 0.8 μm (standard Ra ≤ 0.4 μm)
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High roundness and straightness
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introduction
Surface Processes
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Honing: Precision internal grinding for smooth finish
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Skiving & Roller Burnishing (SRB): High efficiency, denser surface
Applications
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Hydraulic cylinder barrels
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Pneumatic cylinder barrels
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Precision mechanical sleeves
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High‑pressure hydraulic systems
