The CCM SpeedBlade XSG1 Black steel is specifically designed for a goalie who wants harder steel than the stainless steel option. Black steel has surface plating which is bonded to the steel and provides less of a chance for edges to roll over and become dull, allowing for an even longer edge life. This coating also provides resistance against corrosion and other wear that steel might endure that would otherwise damage regular stainless steel faster. Harder steel might cause a goalie to reduce their hollow of radius to a shallower option if they have not used black steel previously.
Compared to the CCM Speedblade XSG1 Stainless Steel Goalie Runner, the CCM Speedblade XSG1 Black Steel Goalie Runner offers an even longer edge life and higher resistance to corrosion.