Korloy DNMG150608-HM PC9030 Thick Stainless Steel Turning Insert, R0.8 (10pcs)
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The Original Korloy DNMG150608-HM PC9030 (ANSI Standard: DNMG 442) is the heavy-duty powerhouse for medium-duty turning of Stainless Steel (M) and High-Temperature Alloys (S). Designed with an industrial-grade 6.35mm thickness and a robust 0.8mm nose radius, this insert offers the maximum mechanical strength required for challenging stainless steel applications. The PC9030 PVD grade features advanced nanostructured coating technology that effectively prevents built-up edge (BUE) and ensures stable chip breaking even under high thermal loads.
Engineered for Stability: The DNMG 442's increased thickness significantly reduces vibration and tool deflection when machining large-diameter stainless shafts or forged components. It is the go-to choice for shops requiring high reliability in 304/316L production.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG150608-HM |
| ANSI Code | DNMG 442 |
| Grade | PC9030 (Premium PVD for Stainless) |
| Nose Radius | 0.8 mm (Strong Edge Security) |
Core Performance Benefits:
- Maximum Edge Strength: The R0.8 radius handles interrupted cuts and heavy scale much better than finishing models.
- Thermal Protection: The 6.35mm thickness allows the insert to act as a heat sink, preventing edge deformation during heavy cuts.
- Nanostructured PVD Coating: Optimized smoothness to stop "chip welding," ensuring clean surface finishes on gummy stainless steels.
- HM Versatile Geometry: Excellent chip control across a broad range of feed rates, reducing machine downtime from "nesting."
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless Steel (304 / 316L) | 90 - 170 m/min | 0.15 - 0.35 mm/rev | 1.0 - 4.5 mm |
| Duplex / Super Stainless | 60 - 100 m/min | 0.12 - 0.28 mm/rev | 1.0 - 3.5 mm |
| High-Temp Alloys (Inconel) | 25 - 50 m/min | 0.10 - 0.22 mm/rev | 0.8 - 2.5 mm |
Compatible Tool Holders:
Must be used with heavy-duty holders designed for 1506 (6.35mm thick) inserts:
- External Turning: DDJNR/L 2525M15 / 3232P15 / 4040R15
- Internal Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15
The "Heavy" Advantage: DNMG 150608 vs. 150408
Why industrial shops prefer the 1506 thick version for stainless:
6.35mm thickness. Offers Maximum Heat Resistance and rigidity. The best choice for long cycles on large stainless parts where dimensions must remain perfect.
4.76mm thickness. Standard for lighter machines and smaller parts. Lacks the vibration-dampening power of the 1506 series in heavy-duty applications.
Machinist's Pro Tip: If you are getting chatter marks on your stainless steel part, switching to this 1506 thick version is often the fastest way to stabilize the cut and save the part.
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.