Product mix
Hot rolled round bars
| Diameters |
Ø 70 - 300 mm (2 3/4” - 11 1/2”) in metric and inch line |
| Lenghts |
3-6,2 longer according to agreement |
| Size tolerances |
In three levels, normal (EN 10060), increased, high (about 1/2 EN) |
| Suface defects |
from 0,3 mm – graded according to bar dimension |
| Internal defects |
according to SEP 1921/84, EN 10228, EN 10308, ASTM A388 in dependence to bar dimension and steel grade |
Peeled bars
| Diameters |
Ø 70 – 290 mm |
| Size tolerances |
h11 to 1000 Mpa (307 HB)
technological peeling to 1150 Mpa (350 HB) |
| Roughness |
max. 3,2 micrometers |
Billets and blooms
| Diameters |
kv. 70 – 300 mm |
| Lenghts |
3,5 – 12 m with min. tolerance 100 mm |
| Size tolerances |
in three levels - normal, increased, high |
| Suface defects |
from 0,3 mm – graded according to billet or bloom dimension |
| Internal defects |
according to SEP 1921/84, EN 10228, EN 10308, ASTM A388 in dependence to bar dimension and steel grade |
Heat Inatment
We carry out annealing or quenching and tempering in continues and chamber furnaces for dimensious Ø 20 - 300 mm and lenghts 3 - 6,2 m (soft annealing to 12m)
| Annealing |
stress relief |
| soft |
| spheriodical |
| normalising |
| isothermal |
| on BG structure |
| special |
| Heat treatment |
quenching and tempering |
| Quenched medium |
water |
| oil |
| polymer |
| air shower |
