Cobalt-free tungsten carbide-based hard-metal material

A cobalt-free, tungsten carbide-based cemented carbide material, comprising:

• 70-97 wt % of particles consisting essentially of tungsten carbide;
• and
• 3-30 wt % of a metallic binder being an iron-nickel-based alloy with a ratio by wt % of Cr to (Fe+Ni+Cr) of equal to or greater than 0.5 and a ratio by wt % of Fe to (Ni+Fe) in the range of from equal to or greater than 0.70 to less than or equal to 0.90,
• wherein:
• (i) for a ratio by wt % of Fe to (Ni+Fe) in a range of from equal to or greater than 0.70 to less than or equal to 0.83:
• the ratio by wt % of Cr to (Fe+Ni+Cr) is less than or equal to (−0.625 times the ratio by wt % of Fe to (Fe+Ni)) plus 3.2688;
• (ii) for a ratio by wt % of Fe to (Ni+Fe) in a range of from greater than 0.83 to less than or equal to 0.85:
• the ratio by wt % of Cr to (Fe+Ni+Cr) is less than or equal to (−27.5 times the ratio by wt % of Fe to (Fe+Ni)) plus 25.575;
• (iii) for a ratio by wt % of Fe to (Fe+Ni) in a range of from greater than 0.85 to less than or equal to 0.95:
• the ratio by wt % of Cr to (Fe+Ni+Cr) is less than or equal to 2.2, and
• unavoidable impurities up to a total of not more than 1 wt % of the cemented carbide material.