Korloy Indexable Turning Insert WNMG080404-HM NC3020 | WNMG 431-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel General Turning - 10pcs Box
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Korloy Indexable Turning Insert WNMG080404-HM NC3020 | WNMG 431-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel General Turning - 10pcs Box
High-Performance ISO-Standard 80° Trigon Negative Indexable Turning Cutters for Industrial CNC Carbon Steels & Alloy Steels
1. Product Overview
"Which indexable turning insert is best suited for general CNC steel machining, high wear resistance, and stable medium-duty cutting passes on carbon and alloy steels?" CNC programmers and machine shop supervisors frequently select the Korloy WNMG080404-HM NC3020. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3020 specialized CVD-coated grade optimized for general steel turning and component manufacturing, combined with an 80° trigon negative geometry providing 6 usable cutting edges for maximum economic efficiency, a precise 0.4mm corner radius for general contouring, and a specialized -HM chipbreaker engineered with a robust medium-duty groove profile to deliver balanced cutting forces, exceptional flank wear resistance, and reliable chip control under demanding workshop conditions.
2. Product Key Features
- NC3020 Advanced CVD Coated Grade Technology: A tough carbide substrate combined with a high-performance CVD multi-layer coating engineered specifically to resist thermal deformation, flank wear, and crater wear during general steel turning operations.
- Optimized -HM Chipbreaker Geometry: Precision medium-duty chipbreaker design featuring a strong cutting edge profile to balance sharp cutting performance with high fracture resistance across varied feed rates.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure pin-and-clamp locking and exact interchangeability across standard negative external turning tool holders and boring bars.
- Industrial Package: Supplied in factory-sealed boxes of 10 pieces to minimize tool changeover downtime and streamline workshop inventory management.
3. Technical Specifications & Model Breakdown
Examine the comprehensive parameter specifications, metric and imperial equivalents, and ISO coding breakdown below for precise CNC lathe and turning tool holder integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | WNMG080404-HM | WNMG 431-HM |
| Inscribed Circle / Size | 8.70 mm (08 series scale equivalent) | 1/2" nominal scale equivalent (4 series) |
| Insert Thickness (04) | 4.76 mm (3/16" thickness class) | 0.1875 inch (3 series / 3/16" scale) |
| Corner Radius (04) | 0.4 mm | 0.0156 inch (1 radius designation scale / 1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Alloy Steels (P15 - P35) | 180 - 320 | 0.15 - 0.38 |
| Low Alloy Steels & Structural Steels (P10 - P25) | 200 - 350 | 0.18 - 0.40 |
Need matching MWLNR/L or PWLNR/L external turning tool holders for your 0804 WNMG inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy WNMG080404-HM NC3020 insert performs exceptionally across automotive manufacturing, general mechanical shafts, industrial machinery production, and structural steel fabrication sectors:
- Automotive Drive Shafts: General turning and medium-duty roughing-to-finishing passes on alloy steel shafts.
- Industrial Roller Components: Stable outer diameter turning on carbon steel cylindrical rollers.
- General Mechanical Engineering: Versatile cylindrical turning across standard structural and machine elements.
5. Compatibility
Designed to integrate seamlessly into standard negative industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with MWLNR/L, PWLNR/L, and DWLNR/L negative lever-lock and pin-lock external tool holders configured for WNMG 0804 series inserts.
- CNC Machinery: Optimized for high-precision CNC lathes, universal turning centers, and heavy-duty manufacturing cells.
6. Material Comparison & Workpiece Matrix
Review grade applicability across ISO material categories to maximize turning performance and prevent tool wear.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, structural steels | Excellent (Dedicated CVD Grade Optimized for General Steel Turning & Long Tool Life) |
| M (Stainless Steel) | Austenitic stainless steels | Limited (Recommended to use dedicated PVD grades like PC9030 for stainless steel) |
| K (Cast Iron) | Gray cast iron, ductile iron | Moderate (Suitable for light continuous turning of cast iron parts) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch authenticity and consistent cutting performance.
Fast Global Logistics
Maintained warehouse stock and streamlined international shipping networks ensure rapid dispatch to eliminate production delays.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: What makes grade NC3020 ideal for general steel turning?
A: The NC3020 grade integrates a tough carbide substrate with a specialized CVD coating that offers outstanding wear resistance and thermal stability across diverse carbon and alloy steel applications.
Q: How many inserts are included in each factory package?
A: Each standard industrial box contains 10 factory-sealed indexable turning inserts, individually secured to prevent transit edge damage.
Q: How does the -HM chipbreaker perform during medium machining?
A: The -HM geometry is specifically designed as a reliable medium-duty breaker that provides steady chip flow and strong edge security under regular feed rates.
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.