TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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Usage
Applicable to hydraulic pressure, pneumatic cylinder,oil pump barrel, motor body, transmission shaft, etc.
| Honed tube for hydraulic cylinder | ||
| Standard | DIN2391, EN10305, JIS G3445, ASTM A519, GB/T 8713... | |
| Material | ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B, CK45... | |
| Heat treatment | BK+S | |
| Specification | Outer diameter(mm) | Inner diameter(mm) |
| 50-300mm | 40-250 | |
| I.D Tolerance | H8-H9 | |
| Length | 3-9m (Customers usually choose the 4~5.8m) | |
| Straightness | 1/1000 | |
| ID roughness | RA 0.4micron(max) | |
| Technology | Honed & SRB(SKIVED AND ROLLER BURNISHED ) | |
| Scope | Honed tube for hydraulic cylinder, swivel crane, injection machine and construction machine application | |
Process
Raw materials- Cold drawn/rolled- Heat treatment(BKS)- Honed or SRB- packing
Steel Grade
ST52, ST52.3, E355, SAE1026, Q345B.
*Low temperature impact test upon request (27J/-20°C).
Size
Processing Cylinder diameterLength /mmStraightnessSize accuracyWall thickness/mmInner boreroughness
Cold Drawn/RolledID28~OD400≤12M0.3~1.0m m/m H8-H11±5%0.8~1.6um
Honed/SRBID30~OD500≤12M0.3~1.0m m/m H8±5%0.4~0.8um
Packing: With anti-rust oil on inner diameter of each pipe,tube caps on both ends, hexagonal bundles of max 3,000 kg with several steel strips, nylon bag and waterproof paper package each bundle. Of course, customers can customize other packing way.
