Stainless Steel Honed Tube Product Introduction
Release time:
2026-03-23
Stainless Steel Honed Tube Product Introduction
Stainless steel honing tubes are precision seamless stainless steel tubes processed by precision honing, featuring high dimensional accuracy, high surface finish and strong corrosion resistance. They are widely used in precision and anti-corrosion scenarios such as hydraulics, food, chemical industry and marine engineering.
1. Common Materials
Mainly austenitic stainless steel, balancing corrosion resistance, strength and processability:
304 (06Cr19Ni10): Composition: Cr 18%–20%, Ni 8%–11%; Features: Universal corrosion resistance, easy cleaning and high cost performance; Application: General hydraulics, food machinery, chemical industry, water treatment.
304L: Features: Low-carbon version, better resistance to intergranular corrosion during welding; Application: Welded structural parts, sanitary fluid pipelines.
316 (06Cr17Ni12Mo2): Composition: Mo 2%–3%; Features: Stronger resistance to chloride ions, acids and alkalis, suitable for seawater and salt spray; Application: Marine engineering, high-end hydraulics, chemical industry, medical treatment.
316L: Features: Low carbon + high molybdenum, optimal welding and corrosion resistance; Application: Medicine, food, high-corrosion working conditions.
2. Product Specifications & Dimensions
Inner hole precision is usually H7–H8, surface roughness Ra≤0.8μm (up to Ra0.2μm). The following are common specifications:
Inner Diameter d (mm) | Outer Diameter D (mm) | Wall Thickness t (mm) | Length L (mm) | Remarks |
|---|---|---|---|---|
20 | 25 | 2.5 | 100–6000 | Small-caliber hydraulic/pneumatic |
25 | 32 | 3.5 | 100–6000 | General purpose |
30 | 38 | 4 | 100–6000 | Common for oil cylinders |
32 | 40 | 4 | 100–6000 | Precision cylinder tube |
40 | 50 | 5 | 100–6000 | Medium and high pressure oil cylinders |
50 | 63 | 6.5 | 100–6000 | Engineering machinery oil cylinders |
63 | 76 | 6.5 | 100–6000 | Heavy-duty hydraulics |
80 | 100 | 10 | 100–6000 | Large-caliber/thick-walled |
100 | 127 | 13.5 | 100–6000 | High pressure/heavy load |
Customization Range: Inner diameter φ10–φ600mm, wall thickness 3–30mm, maximum length 12m; Tolerance can reach ±0.01mm.
3. Main Applications
1) Hydraulic and Pneumatic Systems (Core Application)
Hydraulic cylinder/cylinder tube, servo cylinder, damper; Advantage: High surface finish improves seal life, reduces leakage and friction.
2) Food and Pharmaceutical Sanitary Fields
Food transportation, brewing, dairy products, pharmaceutical equipment pipelines; Requirements: 316L, internal and external polishing, Ra≤0.4μm, easy to clean and sterile.
3) Chemical and Marine Engineering
Corrosive medium transportation, seawater hydraulics, offshore platform oil cylinders; Material: 316/316L, resistant to chloride ions, acids and alkalis corrosion.
4) Precision Machinery and Automation
Linear bearing bushings, guide bushings, measuring instruments, semiconductor equipment; Advantage: Stable size, low friction, high repeat positioning accuracy.
5) Other Industries
New energy (wind power yaw, photovoltaic brackets), automotive (electric drive cooling), aerospace, mining wear-resistant transportation.
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