• Material of Cold Tube: 20# , 45#, 16Mn, 25Mn, 27SiMn, St52, E355.
• With standard DIN2391, GB/T8713-88, GB/T8710-2009, ISO, ASTM and DIN. The maximum length is 12 M. The sizes range from 40 mm to 400 mm. Our product can match all the customers’ requirements.Cold drawn steel tube is a kind of steel tube, that is according to the production process of a different classification of and the difference between hot rolling (expanding pipe. In capillary tube billet or raw material of hole diameter process too much of the two zhongtong lengba processing and become, usually in 0.5 ~ 100 T of single or double chain chain cold drawing machine. Cold rolling (dial the) steel pipe in addition to general steel tube, low points medium voltage boiler steel tube, high pressure boiler tube, alloy steel tube, stainless steel pipe, oil pipe, the other steel pipe cracking outside, still include carbon steel, alloy thin-walled steel tube, stainless thin-walled steel pipe, steel pipe thin-walled aliens. The cold drawn steel pipe diameter can to 6 mm, wall thickness can be to 0.25 mm, tube diameter can be to 5 mm thickness is less than 0.25 mm size, precision and surface quality were significantly better than hot-rolled (expanding pipe, but restricted by technology, its diameter and length are subject to certain restrictions.
High precision cold drawn steel tubes for hydraulics and pneumatics. With precision processing, cold drawn steel tubes could be the best choice for you.
| Specifications of Cold Drawn Tubes | ||||||
| Processing | Diameter(mm) | Length(m) | Straight(mm/m) | Diameter Accuracy | Thickness | Roughness(μ m) |
| Cold drawing | 40-320 | ≤ 12 | 0.2-0.5 | H8-H10 | ± 5% | 0.8-1.6 |
| Cold rolling | 30-100 | ≥ 12 | 0.2-0.5 | H8-H10 | ± 5% | 0.8-1.2 |
| Drawing-honed | 40-500 | 8 | 0.2-0.3 | H7-H9 | ± 5% | 0.2-0.8 |
| Drawing-roll | 40-400 | 7 | 0.2-0.3 | H8-H9 | ± 5% | 0.2-0.4 |
| Deep-hole | 320-500 | 8 | 0.2-0.3 | H7-H9 | ± 8% | 0.2-0.8 |
| Deep-rolling | 320-500 | 7 | 0.2-0.3 | H8-H9 | ± 8% | 0.2-0.4 |
| Application: | |
| · Hydraulic cylider | Automobiles: |
| · Pneumatic cylinder | ﹣Crane |
| · Precise machine pipes | ﹣Truck |
| · Agriculture machine, Boiler construction | ﹣Truck lifter |
| Machinery: | ﹣Shock absorber of car, motorcycle, bicycle |
| ﹣Stamping machine | · Furniture: gas spring |
| ﹣Punching machine | · Exercise equipments |
| ﹣Blow molding machine | · Medical equipments |
| ﹣Plastic injection machine | · Door closer |
| ﹣Food machine | · Condensing unit Pipe |
| ﹣Forklift< / | |