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[China]
Trade Verify
Address: DAXIN TOWN,ZHANGJIAGANG,JIANGSU P.R.CHINA
Contact name:Angela
Jiangsu Hongbao Group Co., Ltd. |
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Verified Suppliers
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YB/T4146 GCr15 Cold Drawing Seamless Bearing Steel Tube
Main Date
| Material | GCr15 |
| Other Material Aviable | 100Cr6, SKF3, SKF3S |
Standard: | GB/T18254, YB/T4146 |
Delivery Condition: | +A |
Size Range: |
Outer Diameter:10-160mm |
Wall Thickness: 1-25 | |
Process: | Piercing,Cold Drawing, Spheroidizing Annealing, Annealing etc. |
Introduction
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.
Chemical Component
| C % | Mn % | Si % | P % | C % | Cr % |
| 0.95-1.05 | :0.20-0.40 | 0.15-0.35 | 0.020 | 0.027 | 1.30-1.65 |
Steel ball, roller and collar of large machinery bearing
High-hardness and high contact fatigue strength machinery parts with heavy load, such as axis of rotation, blade, stator pump, profiling, sleeve, mandril, etc.
Characteristics for bearing seamless tube:
1) Good hardability and high toughness
2) Long fatigue life
3) Medium cold processing plasticity
4) Certain machinability
5) Poor weldability
Manufacture Process
Delivery Condition
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 |
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 |
Appalication
1) Steel ball, roller and collar of large machinery bearing
2) High-hardness and high contact fatigue strength machinery parts with heavy load, such as axis of rotation, blade, stator pump, profiling, sleeve, mandril, etc.
Test
1. Selection of raw materials: We have our own lab to make sure that the matarial we choose is the best .
2. Advanced detection equipment:The turbine detector, Ultrasonic flaw detection & Infrared detection apparatus.
3. Test report with 3rd party.
Theoretical weight scale
| Kg/m | Wall Thickness | ||||||
| OD | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 |
| 32 | 2.146 | 2.460 | 2.762 | 3.052 | 3.329 | 3.594 | 3.847 |
| 38 | 2.589 | 2.978 | 3.354 | 3.718 | 4.069 | 4.408 | 4.735 |
| 42 | 2.885 | 3.323 | 3.749 | 4.162 | 4.562 | 4.951 | 5.327 |
| 45 | 3.107 | 3.582 | 4.044 | 4.495 | 4.932 | 5.358 | 5.771 |
| 50 | 3.477 | 4.014 | 4.538 | 5.049 | 5.549 | 6.036 | 6.511 |
| 54 | 3.773 | 4.359 | 4.932 | 5.493 | 6.042 | 6.578 | 7.103 |
| 57 | 3.995 | 4.618 | 5.228 | 5.826 | 6.412 | 6.985 | 7.546 |
| 60 | 4.217 | 4.877 | 5.524 | 6.159 | 6.782 | 7.392 | 7.990 |
| 63.5 | 4.476 | 5.179 | 5.869 | 6.548 | 7.214 | 7.867 | 8.508 |
| 68 | 4.809 | 5.567 | 6.313 | 7.047 | 7.768 | 8.477 | 9.174 |
| 70 | 4.957 | 5.740 | 6.511 | 7.269 | 8.015 | 8.749 | 9.470 |
| 73 | 5.179 | 5.999 | 6.807 | 7.602 | 8.385 | 9.156 | 9.914 |
| 76 | 5.401 | 6.258 | 7.103 | 7.935 | 8.755 | 9.563 | 10.358 |
| 89 | 6.363 | 7.380 | 8.385 | 9.378 | 10.358 | 11.326 | 12.281 |
| 108 | 7.768 | 9.020 | 10.259 | 11.486 | 12.701 | 13.903 | 15.093 |
| 133 | 11.178 | 12.725 | 14.261 | 15.783 | 17.294 | 18.792 | |
| 159 | 13.422 | 15.290 | 17.146 | 18.989 | 20.821 | 22.639 | |
| 219 | 18.601 | 21.209 | 23.805 | 26.388 | 28.959 | 31.517 | |
| 273 | 23.262 | 26.536 | 29.797 | 33.046 | 36.283 | 39.508 | |
| 325 | 27.750 | 31.665 | 35.568 | 39.458 | 43.337 | 47.202 | |
| 355 | 38.897 | 43.158 | 47.406 | 51.641 | |||
| 377 | 41.339 | 45.871 | 50.390 | 54.897 | |||
| 426 | 46.777 | 51.913 | 57.036 | 62.147 | |||
| 450 | |||||||
| 480 | |||||||
| 530 | |||||||
| 630 | |||||||
