Ready to Honed Tube/Pre-honed Tube
High Precision Steel Tube for Hydraulic Cylinders & Machinery
Pre-honed tubes are made of high-quality seamless steel tubes, which are processed with fine inner hole processing and are suitable for high-precision machinery such as hydraulic cylinders.
Prepared honed tubes are suitable for multiple industries, including construction machinery, automobile manufacturing, agricultural machinery, etc.
Ready to Honed Tube Description
Materials:
ST52 (DIN 2391 ) 8732/8734(GOST)
E355 (EN 10305-1) 20# steel (GB/T 8163)
Other customized materials (can be provided according to customer needs)
Size range:
Outer diameter (OD):20mm-700mm (customizable)
Wall thickness (WT):2mm-60mm (customizable)
Length: Regular length is 6m, customized lengths such as 1m to 12m are also available.
Ready to Honed Tube Technical
Tolerance:
Inner hole size accuracy: H7/H8/H9, higher accuracy can be provided according to application needs.
Outer diameter accuracy: ±0.2mm (adjustable according to different standards and requirements).
Inner hole finish: usually Ra0.8–3.2 μm, finer surface treatment can be provided according to customer needs.
Surface treatment:
Surface smoothness: The inner hole is finely ground and polished, and the surface is smooth and burr-free to ensure smooth operation of the hydraulic cylinder.
Deburring: Deburring the inner and outer surfaces to ensure that the parts have no protrusions.
Rust-proof treatment: Oil-coated and rust-proof packaging can be provided to protect the product from corrosion during transportation.
Strength and hardness:
Tensile strength: usually between 500 MPa and 600 MPa (depending on material and specification).
Yield strength: usually above 350 MPa.
Hardness: usually between HB150 and HB200, depending on material.
Ready to Honed Tube Applications
- Hydraulic equipment: used for inner tubes of hydraulic cylinders and hydraulic systems.
- Engineering machinery: core components of hydraulic systems such as excavators, forklifts, loaders, etc.
- Automotive industry: used for parts that require high strength and precision machining, such as automobile suspension and braking systems.
- Agricultural machinery: hydraulic systems such as tractors and harvesters.
- Energy industry: pipelines, pumping stations and other equipment in the oil and gas industries.
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