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The next generation of steel turning grades—GC4425 (P25) and GC4415 (P15)—offers improved performance across the board. Engineered with second-generation Inveio® coating, both grades are suitable for a wide range of applications and excel in both continuous and interrupted cuts.

GC4425 (P25) is the primary choice, combining enhanced wear resistance, heat resistance, and toughness to cover a broad application range. GC4415 (P15) complements GC4425 by providing additional heat resistance, making it ideal for high-speed cutting and extended time-in-cut under stable machining conditions.

The Steiner Metalworking application team can help you select the right insert for your steel turning operations and offer process improvement strategies to increase yield and reduce cost.

Features & Benefits

  • New substrates offer a strong combination of toughness and plastic deformation resistance
  • Cobalt-enriched surface gradient improves performance security in demanding applications
  • Second-generation Inveio® coating enhances wear resistance and delivers longer, more consistent tool life
  • Optimized crystal orientation supports reliable performance across a wide application range
  • Refined post-treatment improves tool performance in interrupted cuts
  • Bright yellow TiN coating on the insert flank allows for easy wear detection
  • Extended tool life helps reduce insert and workpiece material waste
  • High percentage of recycled carbide makes the grade more environmentally sustainable
 For more information on Sandvik GC4425 (P25) & GC4415 (P15) Steel Turning Insert Grades, call 1-800-323-TOOL (8665) to speak with a Steiner Metalworking Specialist. You may also fill out the form below for additional details.

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