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GC4425, GC4415 and GC4405
The new generation steel turning insert grades GC4425, GC4415 and GC4405 deliver all-round improved performance. Coated with second generation Inveio® technology, they have a broad range of applications and are recommended for continuous and interrupted cuts.
Exceptional performance and more than 65% recycled content*
Sustainability is incorporated into the development of our steel turning grades, which contain more than 65% recycled material, helping you to reach your sustainability targets.
Superior quality, excellent performance
More than 24% CO2 reduction**
Secure resource availability
* The recycled content is year 2025 calculated using yearly figures provided by our suppliers.
** Life cycle inventory (LCI) study based on supplier data from 2025 and scientific publications we calculate a 24-35% reduction in CO2 footprint on raw material compared to using only virgin material in grade GC4415 and GC4425. Calculations are not third party validated.
Toughness and wear resistance combined
New substrate provides a unique combination of toughness and resistance against plastic deformation, an indispensable feature for reliable machining.
Demo: High feed roughing with GC4405
GC4405 offers outstanding plastic deformation resistance for exceptional productivity and long time in cut, especially in harder steels above 300 HB. Dry machining is possible in softer steels.
GC4425 and GC4415 vs. competitors
With an average tool life increase of 25%, GC4425 and GC4415 deliver results that outperform competitors.
Find your grade
Our steel insert grade assortment consists of CVD- and PVD-coated carbide grades for various machining conditions. Use the information below to find the right grade for your production. Higher productivity (vc) means increased plastic deformation and crater wear resistance. Chipping resistance and edge line security is dependent on how stable the machining conditions are.
Application area
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| Machining conditions: | Good | Average | Difficult | |
GC4425
First-choice CVD-coated grade with Inveio® technology for finishing to roughing of steel and steel castings in continuous and interrupted cuts at high metal removal rates.
GC4415
CVD-coated grade with Inveio® technology for finishing to roughing in applications with continuous cut to light intermittence in stable conditions when more heat resistance is needed.
GC4405
CVD-coated high feed roughing grade with Inveio® technology. Recommended for stable conditions when a higher metal removal rate is needed in medium to rough steel applications.
GC4335
CVD-coated grade with Inveio® technology for rough turning of steel and steel castings. Recommended for interrupted cuts and unfavorable conditions.
Complementary grades
Highlights
Inveio®: Second generation
The second-generation Inveio® coating technology provides further improved crystal orientation for increased wear resistance and an even more consistent performance.
Improve process security in steel turning
“Instead of having cracks in the coating, you get very controlled deformation and controlled wear, and real improvement in performance” says Jan Engqvist, R&D Expert responsible for insert coating. Watch the film and learn how our developers worked to further increase process security for the new steel turning grades.
Demo: Steel turning grades GC4425 and GC4415
See steel turning grades GC4425 and GC4415 deliver a reliable and productive performance.
