Across several industries, a honed tube is referred to as a hydraulic cylinder tube,hydraulic tube. It is a high-precision steel pipe, usually made of cold drawn or cold-rolled seamless steel pipes as raw materials, and then subjected to honing processing. It is mainly used in precision equipment such as hydraulic and pneumatic cylinder barrels.
| Standard | JIS / ASTM / DIN / ST52 Standard |
| Outside Diameter | 20-500mm |
| Wall Thickness | 2-50mm |
Parameter of Honed Tubes
| Specification Items | Details |
|---|---|
| Material | 20#, Q235, 20G, 35#, 45#, 16Mn, Q345, 40Cr, 27SiMn, 12Cr1MoV, 10CrMo910, 15CrMo, 35CrMo, 42CrMo, GCr15, 20Cr, 38CrSi, 12CrMo, 20CrMo, 35CrMo, 42CrMo, 12CrMoV, 12Cr1MoV, 38CrMoAL, 50CrV, 20CrMnSi, 30CrMnSi, 35CrMnSi, 20CrMnTi, 30CrMnTi, 12CrNi2, 12CrNi3, 12Cr2Ni4, 40CrNiMoA, 45CrNiMoVA, 20G, 20MnG, 25MnG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB, etc. |
| Specifications | Outer Diameter: 20 - 500mm (such as 273mm, 325mm, 426mm, etc.) Length: 1 - 12m (common standard length is 6m, and can be customized) |
| Size Precision | Outer Diameter Tolerance: ±0.05 - ±0.2mm Inner Hole Size Precision: H7 - H9 Grade |
| Surface Roughness | Inner Hole: Ra0.2 - Ra1.6μm |
| Straightness Standard | ≤0.3mm/m |
| Hardness | Carbon Steel: HB180 - HB250 (after quenching and tempering HB220 - HB300)<br wrapper-d0Cc1k undefined"/>Alloy Steel: HRC40 - HRC60 |
| Execution Standards | GB/T8162 - 99 Structural Pipe, GB/T8163 - 99 Fluid Pipe, GB/T3087 - 99 Medium and Low Pressure Boiler Pipe, GB/T5310 - 95 High Pressure Boiler Pipe, GB/T6479 - 2000 Chemical Fertilizer Special Pipe, GB/T9948 - 85 Petroleum Cracking Pipe, etc. |
| Application Areas |
|
Features of Honed Tubes
Honed tube exhibits an extremely high level of dimensional precision in both its outer and inner diameters. This precision engineering enables a seamless and snug fit with associated components like pistons, thereby effectively precluding any potential leakage of hydraulic oil and ensuring the unwavering stability and reliable operation of the hydraulic system even under high-pressure circumstances.
The favorable uniformity of the wall thickness serves to promote a homogeneous distribution of stress when the tube is subjected to pressure. This characteristic not only augments the service lifespan of the tube but also bolsters the overall safety and integrity of the hydraulic system.
Inner bore of the honed tube showcases a remarkably low surface roughness and a highly regular surface texture.
Typically, it is fabricated from premium-grade steel. Through a sequence of meticulous manufacturing processes including cold drawing or cold rolling, followed by the honing operation, the tube attains commendable strength and toughness. Owing to its relatively elevated surface hardness and superior surface quality, the honed tube demonstrates outstanding wear resistance.
Inherent material composition of the honed tube, be it carbon steel, alloy steel, or other variants, inherently endows it with a certain degree of corrosion resistance.
Industries Using Steel
