Grain size and cobalt content define the trade-off between hardness and toughness. YG6 (6% Co, fine grain) wins on hardness and wear resistance; YG8 (8% Co) adds impact toughness; YG11C sits in between and is the default for mining buttons and road picks. Use this chart before quoting.
Carbon potential, dwell time and cooling rate decide as-cast porosity. Our sintering profile keeps A-type porosity below B105 on every batch — verified by fracture-microscopy inspection according to ISO 4499.
A Norwegian GEM manufacturer replaced standard YK10 tips with our YG11C+ gradient tips on granite-loading duty: field trials reported about 30% longer service life at the same cost per tip.
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