Carbide Grades

Carbide hardness and toughness can be altered, dependent upon the relative quantities of Carbide and matrix metal powders in the mix prior to cementing and sintering. The International Systems Organisation (I.S.O.) have produced codes to simplify selecting the correct grade of Carbide. CUTTING CONDITIONS CODE COLOUR Finishing Steel, high cutting speeds, light feeds, Favourable conditions P01 BLUE Increasing wear resistance Increasing cutting speed. Increasing shock resistance. Increasing feed. Finishing & light roughing of Steel & Castings with no coolant P10 Medium roughing of Steel, less favourable conditions. Moderate cutting speeds & feeds. P20 General purpose turning of Steel & Castings, medium roughing. P30 Heavy roughing of Steel & Castings, Intermittent Cutting, low cutting speeds & feeds. P40 Difficult conditions, heavy roughing/intermittent Cutting, low cutting speeds & feeds. P50 Finishing Stainless Steel at high cutting speeds. M10 YELLOW Finishing & medium roughing Alloy Steels. M20 Light to heavy roughing Stainless Steel & Difficult to cut materials. M30 Roughing tough skinned materials at low cutting Speeds. M40 Finishing Plastics &Cast Iron K01 RED Finishing Brass & Bronze at high cutting speeds & feeds K10 Roughing Cast-Iron, Intermittent cutting, low speeds & High feeds. K20 Roughing & finishing Cast-Iron & non-ferrous materials. Favourable conditions. K30