Suitable To Hone Mechanical Tubing is produced from either cold drawn seamless tubing or from drawn over mandrel (DOM) steel tubing.
Suitable to Hone tubing is intentionally produced with an oversized wall thickness, which is intended to be honed to a smooth finish ID for cylinder application. By utilizing suitable to hone tubing, machine time is reduced and waste is minimized.
Obvious applications are as hydraullic cylinders, Where High degree of dynamic balance is essential. Dom tube's base material strip, is formed into a round cross section in a rollig mail, after which, in a high frequency process, it is welded into a continous tube
In Conclusion, DOM tubes allow shorter finishing times and better production economy than seamless tubes.
We propose a DOM tube inside honed with ALTA finishing, inside tolerance H9 (or H8 upon request), Roughness Ra 0.3 mu max. please check the properties here under
Stell Grade : E355 (ex ST52) as per EN 10305-2
Mechanical Properties (Comparison with SEAMLESS CDS tubes)
|DOM Tubes E355
||SMLS tubes E355+SR
|Tenslie: 650 N/mm2 min.
|| Tensile: 600 N/mm2 min.
|Yeild: 520 N/mm2 min.
|| Yeild: 520 N/mm2 min.
|Elongation: 10pct min
||Elongation: 14pct min