Korloy CNMG120408-HA PC9030 Stainless Steel Semi-Finishing Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CNMG120408-HA PC9030 (ANSI Standard: CNMG 432) is a premium turning insert designed for semi-finishing and medium machining of Stainless Steel and Super Alloys. Featuring the HA chipbreaker, this insert is defined by its high-positive rake angle and razor-sharp cutting edge, which drastically reduces cutting forces and heat buildup. The PC9030 PVD-coated grade offers exceptional chemical stability, making it the top choice for preventing adhesive wear in gummy materials like 316 stainless and titanium.
Balanced Strength & Precision: The 0.8mm (1/32") nose radius provides the necessary edge toughness to handle medium depths of cut, while the HA geometry ensures the material is sheared cleanly, preserving surface integrity.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CNMG120408-HA |
| ANSI Code | CNMG 432 |
| Grade | PC9030 (PVD Specialist for Stainless & HRSA) |
| Chipbreaker | HA (Ultra-Sharp Positive) |
Core Performance Benefits:
- Anti-Adhesion Coating: PC9030 prevents the "welding" of chips to the tool edge, ensuring consistent part dimensions.
- Reduced Work Hardening: Sharp shearing action cuts through the material before it can harden, extending the life of the insert and the workpiece quality.
- Superior Chip Management: HA geometry forces chips to curl and break even in tough, long-chipping alloys.
- Versatile Toughness: 0.8mm radius handles varying depths of cut (ap) with ease, making it a highly productive multi-purpose tool.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless (304/316) | 90 - 170 m/min | 0.10 - 0.30 mm/rev | 0.5 - 3.5 mm |
| Titanium Alloys | 40 - 80 m/min | 0.08 - 0.25 mm/rev | 0.5 - 2.5 mm |
| Nickel-based (Inconel) | 20 - 45 m/min | 0.08 - 0.20 mm/rev | 0.5 - 2.0 mm |
Compatible Tool Holders:
For high-rigidity and optimal chip evacuation, we recommend using D-Type or M-Type holders:
- External Turning: PCLNR/L 2020K12 / PCLNR/L 2525M12
- Internal Boring Bars: S32T-PCLNR12 / S40T-PCLNR12
Stainless Specialist: PC9030 vs. PC5300
Which Korloy grade should you use for your job?
Best for heat-resistant alloys and consistent stainless production. High chemical stability prevents adhesive wear.
Best for interrupted cuts or unstable conditions. Use this if you are switching frequently between steel and stainless.
Machinist's Tip: When using the HA breaker, ensure your feed rate is at least 0.1mm/rev. This ensures the chip is properly formed and engaged with the chipbreaker's geometry.
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.