KORLOY DNMG150608-HM NC3020 Indexable Carbide Turning Inserts | DNMG622-HM NC3020 (ANSI Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Roughing/Medium Machining - 10pcs/box
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KORLOY DNMG150608-HM NC3020 Indexable Carbide Turning Inserts | DNMG622-HM NC3020 (ANSI Equivalent) CVD Coated Carbide Inserts for General Steel & Alloy Roughing/Medium Machining - 10pcs/box
High-Performance ISO-Standard 55° Rhombic Negative Indexable Turning Cutters Featuring NC3020 Advanced CVD Coated Carbide Substrate and -HM Robust Chipbreaker for Superior Steel, Alloy Steel, and Cast Iron Machining
1. Product Overview
"Which indexable turning insert is best suited for general steel and alloy roughing while offering exceptional edge toughness and reliable chip control?" Manufacturing engineers and CNC machinists frequently select the KORLOY DNMG150608-HM NC3020. This industrial-grade cutting tool combines KORLOY's versatile NC3020 multi-layer CVD coated carbide grade with a tough, broad -HM general machining chipbreaker geometry. Engineered on a robust 55° rhombic negative platform featuring an increased 6.35mm thickness (designated by '06') and a 0.8mm corner radius, it delivers superior wear resistance, high thermal stability, and consistent chip breakage during medium-to-heavy roughing operations on carbon steels, alloy steels, and various cast materials.
2. Product Key Features
- NC3020 Advanced CVD Grade: Engineered with a thick multi-layer chemical vapor deposition coating designed for general steel machining, providing excellent resistance to crater wear and plastic deformation at high cutting speeds.
- -HM Universal Chipbreaker & 0.8mm Radius: Features a double-sided geometry with a strong cutting edge for general roughing applications, paired with a robust 0.8mm corner radius to handle interrupted cuts and varying depth variations.
- Thicker 6.35mm Substrate Profile: The heavy-duty 6.35mm thickness ('06' designation) ensures maximum mechanical strength and resistance to shock under aggressive feed rates.
- Factory Sealed Box Packaging: Supplied in original KORLOY protective packaging containing 10 pieces for secure storage and inventory control.
3. Technical Specifications & Model Breakdown
Review the comprehensive technical specifications, metric-to-imperial conversions, and ISO coding breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | DNMG150608-HM NC3020 | DNMG622-HM NC3020 |
| Inscribed Circle (IC) | 15.5 mm | 0.593 in (~19/32") |
| Insert Thickness (S) | 6.35 mm | 0.250 in (1/4") |
| Corner Radius (r) | 0.8 mm | 0.0315 in (~1/32") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Alloy Steels (P Series) - Roughing/Medium | 180 - 320 | 0.15 - 0.45 |
| Cast Iron (K Series) - Roughing | 150 - 270 | 0.18 - 0.40 |
Need reliable external turning toolholders or boring bars designed for secure DNMG 1506 insert clamping?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY DNMG150608-HM NC3020 insert is tailored for robust industrial turning tasks:
- General Mechanical Engineering: Heavy roughing and contouring of forged steel shafts, drive axles, and industrial gear blanks.
- Automotive Powertrain: High-efficiency external turning of cast iron brake rotors, hubs, and transmission components.
- Energy & Infrastructure: Machining large structural steel components and oilfield tubular equipment.
5. Compatibility
Designed to fit standard ISO negative turning toolholder geometries:
- Toolholders: Fully compatible with ISO standard DDJNR/L, MDJNR/L, and PDJNR/L turning toolholders and internal boring bars configured for 1506 insert sizes.
- Machine Equipment: Suitable for heavy-duty CNC lathes, horizontal turning centers, and vertical lathe systems.
6. Material Comparison & Workpiece Matrix
Examine grade suitability across ISO workpiece material classifications for roughing and general machining.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, free-machining steel (C45, 4140, 4340) | Optimal (Primary CVD Grade P15–P35) |
| K (Cast Iron) | Gray cast iron, nodular cast iron (HT250, QT400) | Highly Effective (Secondary Application K15–K30) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch quality and peak machining performance.
Fast Global Logistics
Extensive stock ready for immediate dispatch via reliable international shipping networks to keep your production running smoothly.
Technical Expertise
Backed by professional tooling engineers ready to assist with cutting parameter optimization and application troubleshooting.
8. Frequently Asked Questions (FAQ)
Q: How many inserts are included in one standard factory box?
A: Each original factory box contains exactly 10 pieces of DNMG150608-HM NC3020 inserts.
Q: What makes the -HM chipbreaker ideal for steel roughing?
A: The -HM geometry features a wide, robust groove design built to withstand high feed rates and heavy depths of cut without fracturing, making it perfect for general roughing and medium machining.
Q: Can NC3020 be used for stainless steel turning?
A: While NC3020 is primarily designed for carbon and alloy steels (P group) and cast iron (K group), PVD grades like KORLOY PC9030 are generally recommended for dedicated stainless steel machining.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.