CARBON HOLLOW BAR

They are characterized by offering greater cutting speeds and longer tool life. The European standard for hollow bars EN 10294-1:2005 replaces the list of older and national standards for the same product. The dimensions listed by EN10294-1:2005 are the final guaranteed dimensions after machining with external chucking on a tube with max length of 200mm. These are identified by OD and ID (the diameters are multiples of 5mm). We can obtain the complete dimensional series listed by EN 10294-1:2005. We can also offer other sizes not listed by EN 10294-1 in order to widen the choice to our customers. The main characteristics of Hollow bars are: - Improved machinability steels - high surface quality (guaranted by internal non distructive inspections) - tight dimensional tolerances - guarantee of the surfaces without defects with minimum weight loss due to turning. Tests The product undergoes the following tests: - Heat analysis - Tensile test - Impact test (for N and QT supply condition) - Electromagnetic test acc.to EN 10246-5 Lev. F3 or EN 10246-3 longitudinal Lev. E3 (*) - Visual and Dimensional control - Spectro test to avoid miscellaneous* * not required by EN 10294-1:2005 Certification The product is supplied with 3.1. specific test certificates, according to EN 10204

We can also offer other sizes not listed by EN 10294-1 in order to widen the choice to our customers.