Hydraulic Stainless Steel Precision Tubing Corrosion Resistant Tight Tolerance ±0.05mm
Hydraulic stainless steel precision tubing is specifically designed for high-pressure fluid power systems. Manufactured through cold drawing or cold rolling processes, this tubing offers exceptional dimensional accuracy, high burst pressure resistance, and excellent corrosion resistance. It ensures leak-free performance and long service life in demanding hydraulic environments.
- High pressure rating – up to 10,000 psi (depending on size & wall thickness)
- Tight tolerance: OD ±0.05mm / ID ±0.05mm
- Smooth internal surface for minimal flow resistance
- No internal oxidation or scaling
- Excellent fatigue resistance for dynamic applications
- Available in seamless or welded & drawn construction
| Parameter | Details |
|---|---|
| Applicable Standards | ASTM A269, ASTM A213, EN 10305-4 (DIN 2391), ISO 8535-1 |
| Common Grades | 304 / 304L, 316 / 316L, 316Ti, 321 |
| OD Range | 4mm – 50mm (customizable) |
| Wall Thickness Range | 0.7mm – 5mm |
| Length | Up to 6m straight lengths, or coils |
| Tolerance Class | Hydraulic grade: ±0.05mm / Precision: ±0.02mm |
| Process | Cold drawn seamless or welded & drawn |
| Surface Finish | Bright annealed (internal & external) |
| Delivery Condition | Annealed, stress-relieved, or cold drawn (hard) |
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-11.0 | – |
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-12.0 | – |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
| 316Ti | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
Ti addition in 316Ti prevents sensitization and improves weldability.
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) |
|---|---|---|---|---|
| 304 | ≥520 | ≥205 | ≥35 | ≤90 |
| 304L | ≥480 | ≥175 | ≥35 | ≤90 |
| 316 | ≥520 | ≥205 | ≥35 | ≤90 |
| 316L | ≥480 | ≥175 | ≥35 | ≤90 |
| 316Ti | ≥520 | ≥205 | ≥35 | ≤90 |
| Parameter | Value |
|---|---|
| Burst Pressure | Up to 10,000 psi (dependent on dimensions) |
| Working Pressure | Up to 6,000 psi |
| Internal Surface Roughness | Ra ≤ 0.8μm (smooth flow) |
Tests: Hydrostatic pressure test, flattening test, flaring test, eddy current test, and non-destructive testing (NDT).
Hydraulic stainless steel precision tubing is widely used in fluid power systems requiring corrosion resistance, high pressure capability, and dimensional accuracy:
| Industry | Typical Uses |
|---|---|
| Marine & Offshore | Hydraulic steering systems, deck machinery, subsea controls |
| Industrial Machinery | Presses, injection molding machines, hydraulic lifts |
| Mobile Equipment | Excavators, loaders, agricultural machinery, forklifts |
| Aerospace | Aircraft hydraulic systems (landing gear, flight controls) |
| Oil & Gas | Hydraulic control lines for wellheads and subsea equipment |
| Food & Pharmaceutical | Hygienic hydraulic systems requiring stainless steel |
| Automotive | Brake lines, power steering, clutch actuation systems |
| Advantage | Benefit |
|---|---|
| Corrosion resistance | Ideal for marine, chemical, and outdoor environments |
| High strength | Withstands extreme pressures without failure |
| Cleanliness | No internal scale or contamination |
| Fatigue resistance | Long life in dynamic, high-cycle applications |
| Temperature tolerance | Operates from cryogenic to elevated temperatures |
For samples, technical datasheets, pressure rating charts, or a custom quote, please contact us.
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