Hoberg & Driesch group
Hoberg & Driesch Sweden AB
Hollow bars
seamless, hot-finished (according to EN10297)
Do you have high chip removal costs due to unfavourable dimensions?
Are you dissatisfied with the machining properties of your tubes?
Are you bothered by the excentricity of hot-rolled tubes?
Do you have problems with the straightness of hot-rolled tubes?
Then we recommend tubes in the grades E470+AR and 20MnV6 (according to EN10297), which are characterised by the tightest tolerances and a particular straightness (deviation from the straight line up to 1.5:1000 mm in relation to the delivery length).
- lower material use by net-shape possible tubes
- improved strength-and machining properties by controlled sulfur content
- higher cutting speeds at approximately the same tool wear
- application-oriented material selection saved with the production costs
Specification
| Outer diameter | 57 to 660 mm |
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| Wall thickness | 10 to 90 mm |
Material and condition of delivery
| Norms | EN 10297 |
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| Grades | E470+AR (as rolled) +U (solution annealed) · 20MnV6+N (normalized) |
Certifications and admissions
| Certificate | MTC 3.1 according to EN 10204 · with inspection 3.2 if required |
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