- Home
- Products
- Hydraulic Cylinder Tube
- Hydraulic Tube (Chrome Plated ID Tubing)
Chrome Plated ID Tubing, Pneumatic Cylinder Tubing, Hydraulic Cylinder Barrel
- Internal Diameter Accuracy : F8
- Internal Roughness : max Ra0.2μm
- Straightness: 1-1.2/1000mm
- Standard Length : 3M~11M
- Internal Diameter : 18Ø~ 300Ø
- Steel Grade : EN 1.0580, E355, JIS STKM13C, DIN ST52, SAE1020 Other specification can be supplied upon request. (Max ID: 1000mm)
Chrome plated ID tubing for hydraulic cylinders in harsh environments
Chrome plated ID tubing is a critical component in high-performance hydraulic and pneumatic systems, particularly in demanding industrial environments. This specialized chrome plated ID tubing features a hard chrome layer plated on the internal diameter (ID) of seamless or honed steel tubes. The chrome layer, typically around 10μm in thickness, dramatically enhances the hydraulic cylinder barrel's wear resistance, corrosion protection, and internal surface durability.
As a core structure inside hydraulic actuators, the ID of the tube functions as the smooth internal surface that guides the piston and retains high-pressure hydraulic fluid. The integration of hard chrome plating allows the hydraulic cylinder barrel to endure constant mechanical friction while maintaining sealing integrity and dimensional precision. This makes chrome plated ID tubing essential for equipment that demands consistent performance over long periods, even in corrosive or high-wear environments.
Key benefits of chrome plated ID tubing include excellent internal diameter accuracy (F8 tolerance), ultra-low internal roughness (max Ra0.2μm), and straightness control of 1–1.2/1000mm. These features contribute to reduced seal wear, improved energy efficiency, and longer system life. The hard chrome layer also provides surface hardness exceeding HV850, ensuring resistance to abrasion and deformation.
Commonly manufactured in standard lengths ranging from 3M to 11M, and with internal diameters from 18Ø to 300Ø (and up to 1000mm upon request), this chrome plated ID tubing is made from high-quality materials such as EN 1.0580, E355, JIS STKM13C, DIN ST52, and SAE1020. These steel grades provide robust base strength, which, when combined with chrome plating, creates a highly reliable hydraulic cylinder barrel for various industries.
Applications of chrome plated ID tubing include use as hydraulic cylinder barrels in construction equipment, press machines, lifting systems, and marine hydraulics. It is also used in pneumatic cylinder tubing for systems requiring smooth, durable internal surfaces to ensure accurate piston movement. Furthermore, its corrosion-resistant properties make it ideal for environments involving water, chemicals, or outdoor exposure.
By combining high mechanical strength, precise internal dimensions, and long-lasting chrome protection, chrome plated ID tubing is the preferred choice for hydraulic and pneumatic systems where performance, reliability, and minimal maintenance are essential.
Enhancing Hydraulic Cylinder Barrel Performance with Chrome Plated ID Tubing
Chrome plated ID tubing is an essential upgrade for any high-performance hydraulic cylinder barrel. By applying a precision hard chrome layer to the pneumatic cylinder tubing’s internal surface, this specialized tubing dramatically increases durability, wear resistance, and reliability under extreme operating conditions. Unlike standard honed or untreated tubing, chrome plated ID tubing delivers superior performance and longevity in hydraulic systems.
The internal chrome plating creates a high-hardness surface that resists abrasion and maintains internal roundness and dimensional stability even under high pressure. This stability is critical to ensuring consistent piston motion and minimizing wear on seals. The smooth, mirror-like chrome surface also reduces friction, which directly enhances seal life and prevents internal leakage—contributing to higher hydraulic efficiency.
In corrosive or contaminated environments—such as those involving saltwater, chemicals, or abrasive particles—the ID chrome layer serves as a protective barrier, shielding the base steel from rust and surface degradation. This significantly extends the lifespan of the hydraulic cylinder barrel, reducing downtime and maintenance costs.
Though chrome plating increases initial production cost, it offers long-term value by minimizing failure risks and improving system performance. For demanding applications, chrome plated ID tubing ensures that hydraulic cylinders remain precise, durable, and reliable.
Tolerance of Honing/Skiving and Roller Burnishing Seamless Steel Pipe (ID Hard Chrome), Pneumatic Cylinder Tube, Pneumatic Cylinder Tubing, Hydraulic Cylinder Tube and Chrome Tubing
Grade of tolerance Dia mm Φ |
F |
---|---|
F8 | |
3mm | +0.020 0 |
3mm-6mm | +0.028 0 |
6mm-10mm | +0.035 0 |
10mm-18mm | +0.043 0 |
18mm-30mm | +0.053 0 |
30mm-50mm | +0.064 0 |
50mm-80mm | +0.076 0 |
80mm-120mm | +0.090 0 |
120mm-180mm | +0.106 0 |
180mm-250mm | +0.122 0 |
250mm-315mm | +0.137 0 |
315mm-400mm | +0.151 0 |
400mm-500mm | +0.165 0 |
(unit)µ=0.001mm
Honing/Skiving and Roller Burnishing Seamless Steel Pipe (ID Hard Chrome), Pneumatic Cylinder Tube, Pneumatic Cylinder Tubing, Hydraulic Cylinder Tube and Chrome Tubing
Chemical Analysis & Mechanical Properties
Spec. | Kind | Mark | Manuf | Chemical Composition% | Induction | Tensile Test | Bend Test Flattening Test | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
C | Si | Mn | P | S | Tensile (N/mm²) |
Yield (N/mm²) |
ELOVG(%) | Bend Angle |
Inside Radius |
Outside Radius |
||||||
Test Piece 11th 12 th L |
5 th Test Piece V |
|||||||||||||||
13A | STKM13A | S E |
0.25> | 0.35> | 0.30 | 0.90 |
0.040 Under |
0.040 Under |
380 | 220 | 30 | 25 | 90 | 6D | 2/3D | ||
13B | STKM13B | 450 | 310 | 20 | 15 | 90 | 6D | 3/4D | ||||||||
13C | STKM13C | 520 | 390 | 15 | 10 | - | - | - |
Formula of Pipe Wall Thickness Pressure Resistant Gauge
t = P. D. / 200 S
t = Wall Thickness (mm)
P = The Largest Pressure (Kg/cm²)
D = Steel Pipe Inside Diameter (mm)
S = σ / 5 Kg / mm²
σ = The Lowest Numerical Value of Tensile (Kg/mm²)