Korloy WNMG080404-HM PC9030 (WNMG 431-HM) Stainless Steel Turning Insert (10pcs)
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The Original Korloy WNMG080404-HM PC9030 (ANSI: WNMG 431-HM) is a high-performance 80° Trigon Turning Insert specifically engineered for Stainless Steel and Super Alloys. Featuring the renowned PC9030 PVD Grade, this insert excels in preventing "built-up edge" and heat accumulation—the two biggest challenges in stainless machining. With its 0.4mm (1/64") radius, it is the ideal solution for finishing and semi-finishing operations requiring tight tolerances and mirror-like surface quality.
The Stainless Steel Specialist: PC9030 is designed with a specialized PVD coating that provides high toughness and a smooth surface. It is the top choice for machining 304, 316, and other difficult-to-cut stainless steels, even in interrupted cutting conditions.
Technical Specifications (ISO vs. ANSI):
| ISO Designation | WNMG 080404-HM |
| ANSI Designation | WNMG 431-HM |
| Corner Radius (r) | 0.4 mm / (1/64") |
| Grade | PC9030 (Premium PVD Coated) |
| Primary Material | Stainless Steel (M), Heat Resistant Alloys (S) |
Cutting Parameters (Recommended):
Optimize your PC9030 performance with these recommended parameters for stainless steel:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 120 - 200 m/min | 0.10 - 0.25 mm/rev | 0.5 - 3.0 mm |
| Martensitic Stainless (440C) | 100 - 180 m/min | 0.10 - 0.20 mm/rev | 0.5 - 2.5 mm |
Compatible Tool Holders:
To prevent vibration in stainless steel machining, use these compatible holders:
- External Turning: MWLNR/L Series (Standard Trigon)
- Internal Boring: S-MWLNR/L Series (High-Rigidity Boring Bars)
Core Performance Benefits:
- Anti-Bonding Coating: The PVD TiAlN coating reduces chemical affinity with the workpiece, effectively stopping built-up edge on gummy materials.
- Excellent Edge Toughness: Specialized sub-micron substrate absorbs mechanical shocks, making it reliable for light-to-medium interrupted cuts.
- Economic 6-Edge Design: Provides 50% more productivity per insert than standard CNMG alternatives, significantly lowering your tooling costs.
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Grade Selection Pro-Tip
PC9030 vs. NC3020: While NC3020 is a CVD grade for high-speed Steel turning, PC9030 is a PVD grade optimized for Stainless Steel. PVD grades have sharper edges and higher toughness, which are essential for the sticky nature and work-hardening properties of stainless materials.
Packaging: 10 pieces per box.