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Honed tube is well known as the best material to manufacture hydraulic cylinders. This is because honed tubes are the most critical materials for hydraulic cylinders. Honing is essentially a bore sizing and surface preparation process.
Product Parameters | ||||
standard | GB/T3639-2000 | DIN2391 | EN10305 | ASTM A519 |
metarial | C20 CK45 Q355B Q355D | E355/ST52 SAE1026 | 4130 4140 | STKM 13C |
Heat treatment | BK+S | |||
size | I.D:30mm-400mm | O.D:40mm-480mm | ||
length | Fixed length | Random length or as requests of customers | ||
Straightness | 1/1000 | |||
Technology | Honed SRB(SKIVED AND ROLLER BURNISHED） | |||
Scope | Honed tube for hydraulic cylinder,swivel crane,injection machine and construction machine application | |||
Table 1- Chemical composition | ||||||
Steel Grade | C% | Si% | Mn% | P% | S% | AL% |
E215 | ≤0.10 | ≤0.05 | ≤0.7 | ≤0.025 | ≤0.025 | ≥0.025 |
E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 |
|
E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 |
|
E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 |
|
Table 2 - Mechanical properties at room temperature | |||||||||
Delivery Condition | BK | BKW | GBK | NBK (N) | |||||
Steel Grade | Rm | A % | Rm | A % | Rm | A % | Rm | ReH | A % |
Mpa (Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | Mpa(Min) | (Min) | |
E215 | 430 | 8 | 380 | 12 | 280 | 30 | 290~430 | 215 | 30 |
E235 | 480 | 6 | 420 | 10 | 315 | 25 | 340~480 | 235 | 25 |
E255 | 580 | 5 | 520 | 8 | 390 | 21 | 440~570 | 255 | 21 |
E355 | 640 | 4 | 580 | 7 | 450 | 22 | 490~630 | 355 | 2 |
1. Automotive and mechanical pipes | |
2. Petroleum cracking pipes | |
3. High Pressure Boiler Pipe | |
4. Low and middle pressure fluid transportation pipeline | |
5. Chemical fertilizer equipment pipes | |
6. Heat exchanger pipes |
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| Hydraulic Steel Pipe | Ck45 E355 En10305 Cds Cold Rolled Honed Tube |
| Cylinder Pipe Steel Price Ck45 St52 Honed Tubes | H9 Hydraulic Cylinder |
| H8 Honed Steel Tube | Honing Tool Cylinder |
| St52 Honing Tube | H8 H9 Honed Tube |
| Steel Honed Tubing | Honed Pipe Manufacturer |
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