Korloy CCMT09T308-HMP PC9030 Robust Stainless Steel Turning Insert (10pcs)
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The Original Korloy CCMT09T308-HMP PC9030 is a high-performance carbide insert designed for maximum productivity in stainless steel turning. While smaller radii are meant for light finishing, the 0.8mm (R0.8) nose radius of this model allows for significantly higher feed rates and provides superior resistance to edge chipping. Combined with the industry-standard PC9030 PVD coating, it ensures stable tool life even in the toughest austenitic stainless steels.
Swiss Lathe & Small Part Expert: Processing small precision parts? Check our latest guide: Optimizing Stainless Steel on Swiss Lathes.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CCMT09T308-HMP |
| Grade | PC9030 (Premium PVD for Stainless) |
| Nose Radius | 0.8 mm (Enhanced Edge Strength) |
| Primary Application | Stainless Steel / Heat Resistant Alloys |
Core Performance Benefits:
- High-Feed Capability: The robust 0.8mm radius allows you to increase feed rates (mm/rev) without sacrificing edge integrity, cutting your cycle times.
- Superior Heat Dissipation: The larger radius helps spread the cutting heat over a wider area, preventing premature thermal cracking in gummy materials.
- PVD Anti-Adhesion Coating: The PC9030 grade is engineered to prevent Built-Up Edge (BUE), ensuring that stainless steel fibers don't stick to the tool.
- HMP Chipbreaker: Optimized for medium-duty applications, providing excellent chip breaking even at higher depths of cut.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless 304 / 316 | 90 - 160 m/min | 0.10 - 0.25 mm/rev | 0.8 - 3.0 mm |
| Duplex Stainless Steel | 50 - 100 m/min | 0.08 - 0.20 mm/rev | 0.8 - 2.5 mm |
Compatible Tool Holders:
To take advantage of the higher feed rates possible with the R0.8 radius, use a rigid SCLCR/L type holder:
- External Turning: SCLCR1616H09 / SCLCR2020K09 / SCLCR2525M09
- Boring Bars (Internal): S16Q-SCLCR09 / S20R-SCLCR09 / S25S-SCLCR09
Quick Guide: R0.4 vs. R0.8 in Stainless
Which nose radius should you choose for your CCMT09?
Best for fine surface finishes and maintaining low radial pressure to avoid vibration in small diameters.
Best for semi-finishing and roughing. Offers maximum tool life and productivity during material removal.
Machinist's Tip: If your R0.4 insert is wearing out too fast due to heat, switching to R0.8 is the easiest way to increase tool life without changing speeds.
Packaging: 10 pieces per box.
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.