Knowledge

CTCM245 – the grade for milling high-alloy steels

The CTCM245 grade features an optimised coating and substrate combination that has been specially developed for machining high-alloy steels.
As a user, you benefit from high cutting speeds and excellent results in the dry machining of the following materials:

  • Materials containing chromium (tool steels)
  • Martensitic, stainless steels
  • High-alloy, austenitic, stainless steels

The special properties of the grade make it suitable for dry machining, which means that thermal shocks can be effectively prevented. The CTCM245 also has a high temperature resistance, which means that higher cutting speeds are possible when machining high-alloy steels. Process security is also guaranteed. Thanks to state-of-the-art CVD technology, the grade also guarantees a seamless machining process. In application ranges that require secure processes, a long service life and strong performance, the CTCM245 impresses across the board.

Science and technology – an unbeatable combination that ensures optimum machining.

  • Al203 coating for excellent temperature resistance (high thermal and chemical stability), reduces flank and crater wear.
  • TiCN coating for a high degree of hardness and toughness reduces abrasive and flank wear.
  • Compound layer to guarantee the effectiveness of the coating combination. Adverse effects caused by diffusion are prevented.
  • Very tough substrate that guarantees a long service life and is extremely wear- and temperature-resistant. The extreme hardness also ensures a high resistance to breakage.

Competitor comparison

Face milling with button inserts

Material: 1.4301
Tool: RPHX 1204M6SN-M50 CTCM245
vc: 235 m/min
fz: 0.28 mm
ap: 1.5 mm

Components produced

red = CERATIZIT | grey = competitor

Turbine blade machining

Material: St-17/13W
Tool: RPHX 1204M4SN-F50 CTCM245
vc: 0.33 mm
fz: 2.0 mm
ae: 40 mm

Service life in min

red = CERATIZIT | grey = competitor

A full understanding of the interaction between workpiece material, tool geometry, tool material and cutting parameters is essential when it comes to producing maximum power in demanding applications. (The CERATIZIT development team)