Korloy DNMG110404-HM PC9030 Stainless Steel Turning Insert, R0.4 (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy DNMG110404-HM PC9030 (ANSI Standard: DNMG 331) is a world-class solution for machining Stainless Steel (M) and Heat-Resistant Alloys (S). Unlike standard steel inserts, the PC9030 grade utilizes a specialized PVD Nanostructured coating that offers exceptional heat resistance and surface smoothness. This drastically reduces the chemical reaction between the insert and the workpiece, preventing the "built-up edge" (BUE) that commonly leads to poor surface finishes and sudden insert failure in stainless steel applications.
Precision for Stainless Steel: The R0.4 nose radius combined with the sharp HM chipbreaker geometry allows for incredibly clean cuts at light depths, making it perfect for the final finishing stages of high-precision stainless steel components.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG110404-HM |
| ANSI Code | DNMG 331 |
| Grade | PC9030 (Premium PVD for Stainless) |
| Target Material | Stainless Steel (M), HRSA (S) |
Core Performance Benefits:
- PVD Nano-Coating: Provides a sharp, stable cutting edge that resists the "gummy" nature of 304 and 316 stainless steel.
- Anti-Adhesion: Smooth coating surface prevents chips from welding to the insert, ensuring consistent surface finish.
- Tough Substrate: Specifically balanced to handle the work-hardening challenges of stainless materials and light interrupted cuts.
- HM Chipbreaker: Optimized for low-to-medium feed rates, delivering excellent chip breaking and reducing tool pressure.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless Steel (304 / 316) | 100 - 180 m/min | 0.08 - 0.20 mm/rev | 0.3 - 2.0 mm |
| Duplex Stainless Steel | 60 - 120 m/min | 0.07 - 0.18 mm/rev | 0.3 - 1.5 mm |
| Inconel / Heat-Resistant Alloys | 30 - 60 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.0 mm |
Compatible Tool Holders:
Standard fit for all 55-degree negative holders (11-size pocket):
- External Precision Holders: DDJNR/L 1616H11 / 2020K11 / 2525M11
- Internal Boring Bars: S20R-DDUNR11 / S25S-DDUNR11 / S32T-DDUNR11
Stainless Steel Pro Tip: PC9030 vs. NC Series
Why you shouldn't use your steel inserts (NC3020/NC3120) on stainless steel:
Uses PVD Coating. PVD coatings are thinner and sharper than CVD, which is essential for "slicing" through stainless steel without causing work-hardening. PC9030 is the industry standard for 300-series stainless.
Uses CVD Coating. While great for heat resistance in carbon steel, CVD coatings are often too thick/blunt for stainless, leading to instant built-up edge and surface tearing.
Machinist's Secret: Always use plenty of high-quality coolant when using PC9030 on stainless steel to flush away the gummy chips and maintain the integrity of the PVD coating.
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.