Korloy TCMT16T308-HMP PC9030 Heavy Stainless Steel Turning Insert (10pcs)
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The Original Korloy TCMT16T308-HMP PC9030 is a high-strength Triangular Indexable Turning Insert specifically optimized for the high-feed and heavy-duty machining of Stainless Steel (M-Group). Featuring a reinforced 0.8mm corner radius and the industry-leading PC9030 PVD Coating, this insert provides the ultimate thermal and mechanical stability needed for large stainless steel shafts, flanges, and internal bores.
Maximize Material Removal: The R0.8 corner radius allows for aggressive feed rates without sacrificing tool integrity. When combined with the PC9030 grade, it offers the best protection against work-hardening and notch wear in gummy stainless alloys.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Designation | TCMT16T308-HMP |
| Corner Radius (r) | 0.8 mm (Reinforced for Productivity) |
| Grade | PC9030 (Premium PVD for Stainless Steel) |
| Chipbreaker | HMP (High-Efficiency Medium Finish) |
Core Performance Benefits:
- Engineered for Tough Alloys: Superior resistance to chemical wear and thermal cracking, making it ideal for 304, 316L, and Duplex Stainless.
- Heavy-Feed Capability: The R0.8 tip geometry is designed to handle higher chip loads, significantly reducing machining time on large workpieces.
- Exceptional Surface Integrity: The HMP geometry effectively breaks chips even in long-chipping stainless materials, preventing bird-nesting on the tool.
- Optimized PVD Coating: The thin, sharp, and smooth coating layer prevents material adhesion, ensuring low cutting forces and longer tool life.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 80 - 180 m/min | 0.15 - 0.35 mm/rev | 1.0 - 4.0 mm |
| Duplex Stainless (2205) | 50 - 110 m/min | 0.12 - 0.30 mm/rev | 0.8 - 3.0 mm |
| High-Temp Superalloys | 25 - 60 m/min | 0.10 - 0.20 mm/rev | 0.5 - 2.5 mm |
Compatible Tooling Systems:
Precision matched for heavy-duty 16-size triangular holders:
- External Turning Toolholders: STGCR 2020K16 / STGCR 2525M16
- Internal Boring Bars: S25S-STUCR16 / S32T-STUCR16 / S40U-STUCR16
Machinist Tip: Scaling Efficiency in Stainless
Why the TCMT16T308 PC9030 is the "Stainless Champion":
Best for Chemical Stability. Stainless steel reacts with cutting tools. PC9030 is designed to resist this chemical wear. For high-volume stainless production, it outperforms universal grades like PC5300 by 30-50% in tool life.
Increased Edge Toughness. In large internal boring where tool length is long, the R0.8 radius provides a more stable cutting action and absorbs vibration better than the R0.4, ensuring the corner doesn't chip prematurely.
Pro Advice: When turning stainless with the 16T308, maintain a consistent feed rate. If you stop the feed while the tool is in contact, the material will work-harden, making it extremely difficult to restart the cut without damaging the insert.
Packaging: 10 pieces per box.
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