Stavax

Tooling Performance

Mould makers specify this chromium alloy to prevent surface pitting during long production cycles with high humidity environments. The chemistry allows for effective laser welding during maintenance if damage occurs to the parting lines or core pins. Standard preparation involves hardening and tempering to balance toughness against the wear resistance required for abrasive resin fillers.

Consistent hardness across large blocks helps maintain dimensional stability under the high clamping pressures typical of thermoplastic processing.

Moulding Efficiency

Processing engineers rely on the high thermal conductivity of this grade to manage cooling times effectively. The material stavax maintains its structural integrity even when rapid cycle times generate localized thermal spikes within the mould insert. Virgin resin flow improves over the smooth, high-polish finish that this steel supports without degradation from chemical attack.

Proper surface treatment extends the maintenance interval between polishing sessions during high volume production runs.

Material Specification

Chemical purity in this grade limits the inclusion of impurities that might otherwise cause voids or surface defects during mirror polishing. Manufacturers define the alloy through a narrow window of molybdenum and carbon concentrations which dictates the final resistance to pitting. Precise control of the tempering phase regulates the transition from brittle hardness to functional toughness.

Correct heat treatment procedures determine the actual service life of the insert more than the raw material cost itself.