Korloy DNMG150604-HM PC9030 Thick Stainless Steel Finishing Insert (10pcs)
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The Original Korloy DNMG150604-HM PC9030 (ANSI Standard: DNMG 441) is a heavy-duty 55° diamond turning insert specifically designed for high-stability finishing of Stainless Steel (M) and Super Alloys (S). Featuring a 6.35mm thick substrate, the DNMG1506 series provides superior mechanical strength and vibration dampening compared to standard thickness inserts. Combined with the PC9030 PVD grade, this insert excels in maintaining tight tolerances and mirror-like finishes on "gummy" materials like 304, 316, and Duplex stainless steel.
Heavy-Duty Precision: The added thickness of the DNMG 441 body acts as a critical heat sink during long finishing passes on large workpieces, protecting the cutting edge from thermal deformation and ensuring consistent dimensions from start to finish.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG150604-HM |
| ANSI Code | DNMG 441 |
| Grade | PC9030 (Premium PVD for Stainless) |
| Thickness | 6.35 mm (Industrial Stability) |
Core Performance Benefits:
- Maximum Rigidness: The 6.35mm thickness drastically reduces tool deflection and chatter during high-pressure finishing.
- PVD Nanostructure Coating: Offers extreme smoothness to prevent chip welding and built-up edge (BUE) on austenitic stainless steels.
- R0.4 Precision: Small nose radius reduces radial cutting forces, ideal for preventing vibration in slender or thin-walled parts.
- Thermal Shock Resistance: The PC9030 grade is optimized for wet machining, resisting the micro-cracking caused by rapid cooling cycles.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless 304 / 316 | 100 - 190 m/min | 0.05 - 0.18 mm/rev | 0.2 - 2.0 mm |
| Duplex Stainless (2205) | 60 - 120 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.5 mm |
| High-Temp Alloys | 30 - 65 m/min | 0.05 - 0.12 mm/rev | 0.2 - 1.0 mm |
Compatible Tool Holders:
Must be used with holders designed for 1506 (6.35mm thick) pockets:
- External Turning: DDJNR/L 2525M15 / 3232P15
- Heavy Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15
Thickness Advantage: DNMG 1506 vs. 1504
Why use the 150604 for stainless steel finishing?
Built for Large Scale Stability. The 6.35mm thickness prevents the insert from vibrating when finishing long stainless shafts. It is far more durable under heat than the 1504 version.
The standard 4.76mm thickness. Excellent for small-to-medium parts, but may struggle with chatter on heavy-duty lathes or deep internal boring.
Machinist's Insight: When precision finishing 316 stainless steel, heat is your enemy. The extra carbide volume in this 1506 insert pulls heat away from the cutting tip faster, allowing for a more stable and predictable finish.
Packaging: 10 pieces per box.