The peeled bar is supplied in a polished and straightened condition. This allows for a smoother surface finish, closer tolerances and better straightness, plastic forming as well as further machining.
Peeled bar gives customers the opportunity to rationalize production and reduce production costs. The extraordinary cleanliness of the steel reduces the risk of unexpected tool failures and downtime, and the excellent straightness minimises the risk of shocks and vibrations that can occur at high cutting speeds.
The good surface finish of Ovako’s peeled bar can sometimes eliminate the need for further surface finishing. This saves material, machining and production time.
Peeled bar product properties
| Size range | Peeled bar is produced in optional sizes in the 17 to 106,4 mm diameter range. |
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Steel grades |
Peeled bar is produced in a wide range of steel grades – from simple engineering steels to special steels |
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Diameter tolerance |
Tolerance class IT11 is standard. Upon separate agreement, tolerance class IT9 can be supplied. |
| Surface roughness |
Max Rt 50 μm |
| Straightness |
Normal straightness is max 0.6 mm/m |
| Lengths and length tolerances |
Delivery of optional lengths in the 4 to 8 m range. Heat-treated material may have other lengths. |
| Out of roundness |
Max. 50 % of the diameter tolerance, measured as the difference in diameter |
| End finish |
Cold-sheared and deburred ends without radial burrs and/or cold sawn and chamfered, one or two ends, 45° |
| Packing and marking |
The material is supplied bundled with steel straps. Each bundle is supplied with a tag containing information |
Advantages of Peeled bar
- Rationalised production
- Lower production cost
- Minimised risk of shocks and vibrations at high cutting speeds
- Reduced need for further surface finishing
Peeled bar is characterised by
- Technical surface defect free
- Free from decarburization
- Good surface smoothness
- Close tolerances
- Adjusted structure and hardness
- Good machinability after forming
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