Korloy CNMG120408-HM PC9030 Stainless Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
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.
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.