China Pre Honed Tube for Hydraulic Cylinder
Seamless Steel Honed Tube Features & Specification
Production Introduction:
Shape: Round
Standard: DIN2391, EN10305, ASTMA519, GB/T3639-2000
Material: C20, CK45, Q355B, Q355D, E355 (ST52), SAE1026, SAE4130, SAE4140, STKM 13C. Carbon Steel and Alloy Steel.
Salty spray test: ≥ 120hours
Size: Outside Diameter (OD): 40.0mm~1000.0mm, Inner Diameter (ID): 30.0mm~700.0mm
Length: Fixed Length, Random Length: 3-9m or as requests of customers
Surface Treatment: Surface treatment of the inner wall of seamless honed tubing. There are cold rolling, honing, scraping rolling
Sample: We can provide carbon seamless hydraulic cylinder tube samples for trial.
Chemical Composition of Seamless Steel Honed Pipes:
| Steel Grade | Chemical Composition% | ||||||
| C | Si | Mn | P | S | Cr | Ni | |
| C20 | 0.17~0.23 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | ≤0.025 | ≤0.025 |
| CK45 | 0.42~0.5 | 0.17~0.37 | 0.5~0.8 | ≤0.025 | ≤0.020 | ≤0.025 | ≤0.030 |
| E355/ST52 | ≤0.22 | 0.20~0.60 | 1.20~1.60 | ≤0.025 | ≤0.025 | ≤0.025 | ≤0.025 |
Mechanical Property of Honed Tube:
| Processing | ID mm | Length/m | Straightness/mm | ID Tolerance | Roughness(μm) |
| Honed | 40.0~500.0 | ≤12m | 0.5-1/1000 | H8-H9 | 0.4-0.8μm |
| Skived Rolling Burnished | 50.0~250.0 | ≤9m | H8 | 0.1-0.4μm |
Tolerance of Seamless Honed Tubes:
| ID/mm | Tolerance/mm | WT Tolerance | ||
| H8 | H9 | H10 | ||
| 30 | 0.033 | 0.052 | 0.084 | ＜120mm(OD) ±5%, 120mm to 210mm ±7.5%, ＞210mm ±10% |
| 30~50 | 0.039 | 0.062 | 0.1 | |
| 50~80 | 0.046 | 0.074 | 0.12 | |
| 80~120 | 0.054 | 0.087 | 0.14 | |
| 120~180 | 0.063 | 0.1 | 0.16 | |
| 180~250 | 0.072 | 0.115 | 0.185 | |
| 250~315 | 0.081 | 0.13 | 0.21 | |
| ＞315 | 0.089 | 0.14 | 0.23 | |
Advantages of Seamless Hydraulic Cylinder Tubes:
- Precise size: The inner diameter of the hydraulic cylinder honed tube is relatively accurate and can be perfectly matched with the piston rod.
- Smooth inner wall: Smooth surface: The inner wall is relatively smooth, which helps to reduce the friction loss generated during the operation of the hydraulic cylinder or pneumatic cylinder.
- Seamless structure: The pipe has no welds and has higher tensile strength and pressure resistance.
- Good sealing performance
Process of Seamless Hydraulic Honed Tubes
Cold drawing or rolling: precision forming, high strength and good uniformity.
Honing process: achieve smooth and precise inner surface.
Skiving: through the combination of skiving and Rroller burnishing, the inner wall surface is made smoother and more uniform, while improving the surface hardness and fatigue resistance.
Application of Honed Hydraulic Tube
Seamless carbon or alloy honed tube is the raw material for making hydraulic cylinders and pneumatic cylinders.
Hydraulic cylinders: various mechanical products such as engineering construction machinery, agricultural machinery, mining machinery, etc.
Industrial equipment: improve the performance of lifting systems, presses and custom engineering projects.
Cylinders: support high-precision automation in robots, assembly lines and manufacturing systems.
Automotive industry: provide durability and accuracy for shock absorbers, brake systems and suspension components.
Hydraulic Cylinder
Machinery Telescopic Cylinder
Large Hydraulic Cylinder
Factory of Seamless Honed Steel Tubes
We are a leading manufacturer and supplier of honed tube in China. Our factory has more than fifteen years of export experience, has advanced production equipment, and has cooperated with customers in more than forty countries. We have precision seamless hydraulic tube, honed pipes, tube assembly and other product.
Cold Drawn
Workshop
