GCr15 Precision Cold Drawn Seamless Bearing Steel Tube for Auto Parts
Bearing steel pipe is the seamless steel tube for hot rolling or cold rolling (cold drawing) for the manufacture of ordinary rolling bearing ring. The outer diameter of the steel tube is 25-180 mm, and the wall thickness is 3.5-20mm, which is divided into ordinary precision and high precision. Bearing steel is used for making ball bearings, roller bearings and bearing rings. Bearing is under great pressure and friction, so the bearing steel is required to have high and uniform hardness and wear resistance, and high elastic limit. On the uniformity of the chemical composition of bearing steel, the content and distribution of non-metallic inclusions are very demanding, the distribution of the carbide, etc, are all steel production in one of the most demanding steel grade.
1. Main Date
Material: E215, E255, C35E, C45E , E355, 26MnB5, 34MnB5, 50CrVA , SAE1026, SAE5160H, PA12, MT1010, 45# , GCr15,GCr9SiMn,PA12,100 Cr6 etc.
Diameter range:10-160mm ,
Thickness Range:1-25mm
2. Manufacturing Process
3. Main Equipment List and Capacity Analysis
| Status | Main Equipment List | Quantity (Line) | Capa per Shift | Shift per Day | Working days per month | Actual Capacity |
| Current | Piercing Mill ∮50-∮120
| 5 | 25T/S | 2 Shifts | 22 Days | 66000T/Y |
| Rolling Mill ∮40-∮180
| 50 | 1.25T/S | 2 Shifts | 22 Days | 33000T/Y |
| 60T 3 Lines of High Precision Drawing Machine
| 1 | 15T/S | 2 Shifts | 22 Days | 7920T/Y |
| Drawing Machine 10T-150T
| 10 | 3.5T/S | 2 Shifts | 22 Days | 18480T/Y |
| Straightening Machine ∮30-∮130
| 7 | 16.5T/S | 2 Shifts | 22 Days | 60984T/Y |
| Heating Furnace
| 4 | 26T/S | 2 Shifts | 22 Days | 54900T/Y |
| Eddy Current Detector
| 3 | 33T/S | 2 Shifts | 22 Days | 52272T/Y |
| Ultrasonic Detector
| 1 | 10T/S | 2 Shifts | 22 Days | 5280T/Y |
| Ultrasonic & Eddy Current Detector
| 1 | 25T/S | 2 Shifts | 22 Days | 13200T/Y |
| Automatic Pickling Equipment | 1 | 115T/S | 2 Shifts | 22 Days | 60720T/Y |
| 60 Welding Line | 1 | 25T/S | 2 Shifts | 22 Days | 13200T/Y |
| Head Shrinked Machine | 1 | 25T/S | 2 Shifts | 22 Days | 13200T/Y |
| 85m Roller Hearth Bright Normalizing(Annealing) Furance | 1 | 48T/D | 2 Shifts | 22 Days | 12672T/Y |
| Subtotal
| | | | | 59400T/Y |
| Project under construction | SG/76 Strengthen Precision High Frequency Welding Line
SG/76 | 1 | 65T/D | 2 Shifts | 22 Days | 17160T/Y |
| 14 Roller Precision Straightening Machine
| 2 | 25T/S | 2 Shifts | 22 Days | 13200T/Y |
| 60T 3 Lines of High Precision Drawing Machine
| 1 | 30T/D | 2 Shifts | 22 Days | 7920T/Y |
4. Test
1. Selection of raw materials: Choose the best raw material--titanium sponge.
2. Advanced detection equipment:The turbine detector, Ultrasonic flaw detection & Infrared detection apparatus.
3. Test report with 3rd party.
5. Trade Information
| Trade Term | FOB, EXW, CIF |
| MOQ | 10000KG |
| Payment | 30% TT in advance, balance before shippment or B/L at sight. |
| Sample | Free sample but postage is required. |
| Delivery Time | 15-60 days |
| Package | Standary export package or as requirement |
| Other service | As customer requirement |
Product Tags:
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Oil Treated Precision Bearing Steel Tube , GCr15 Cold Drawn Seamless Steel Tube Images
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