Stainless Steel Honing Tube Product Introduction

2026-03-19

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.
321 (06Cr18Ni11Ti): Features: Stabilized with Ti, high-temperature creep resistance; Application: High-temperature hydraulics, heat exchangers.

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.