Korloy TCMT16T308-HMP PC9030 Heavy Stainless Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
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.
Korloy TCMT16T308-HMP cutting data, best insert for 316 stainless heavy cuts, PC9030 grade vs PC5300 stainless, TCMT16T308 feed rate for duplex steel, large boring inserts for stainless steel
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.