Korloy CNMG120408-HM PC9030 Stainless Steel Turning Insert (10pcs)
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The Original Korloy CNMG120408-HM PC9030 (ANSI Standard: CNMG 432) is a high-performance PVD-coated carbide insert specifically optimized for Stainless Steel and Heat-Resistant Alloys. While standard steel grades often suffer from built-up edge and notch wear when cutting stainless, the PC9030's specialized coating and high-toughness substrate ensure a sharp cutting action and superior resistance to thermal cracking. The 0.8mm (1/32") nose radius provides excellent edge strength for both continuous and interrupted cuts in demanding materials.
Superior Performance: PC9030 is world-renowned for its ability to handle "gummy" materials like 304 and 316 stainless, preventing chip welding and ensuring long tool life.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CNMG120408-HM |
| ANSI Code | CNMG 432 |
| Grade | PC9030 (PVD Specialist for M/S Categories) |
| Chipbreaker | HM (General-Purpose / Medium Cut) |
Core Performance Benefits:
- Anti-Adhesion Coating: Ultra-smooth PVD layer prevents "built-up edge," ensuring better surface finish and dimensional stability.
- Enhanced Edge Toughness: The R0.8 radius offers more structural support than R0.4, making it ideal for semi-roughing and finishing.
- Versatile HM Geometry: Optimized for stable chip control even in materials with high ductility like austenitic stainless steels.
- Multi-Material Capability: While optimized for stainless, it also performs exceptionally well in HRSA (Superalloys) and unstable steel setups.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Austenitic (304/316) | 100 - 180 m/min | 0.12 - 0.35 mm/rev | 0.8 - 4.0 mm |
| Duplex Stainless Steel | 60 - 120 m/min | 0.10 - 0.30 mm/rev | 0.8 - 3.5 mm |
Compatible Tool Holders:
To reduce vibration in tough stainless alloys, use standard D-Type or M-Type holders:
- External Turning: PCLNR/L 2020K12 / PCLNR/L 2525M12 / DCLNR/L 2525M12
- Internal Boring Bars: S25S-PCLNR12 / S32T-PCLNR12 / S40T-PCLNR12
Stainless Shop Tip: PC9030 vs. PC5300
Which PVD grade fits your workflow?
Optimized specifically for Stainless Steel (M-class). Best at suppressing built-up edge and handling high-nickel content.
A multi-purpose grade for Steel, Stainless, and Cast Iron. Great if you switch materials frequently on the same machine.
Machinist's Tip: When machining austenitic stainless with PC9030, always maintain a feed rate above the work-hardened layer left by the previous pass.
Packaging: 10 pieces per box.