Korloy CNMG120408-HA PC9030 Stainless Steel Semi-Finishing Insert (10pcs)
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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.