Korloy Indexable Turning Insert CCMT120404-HMP NC3030 | CCMT 431-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for General Steel and Alloy Turning - 10pcs Box
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Korloy Indexable Turning Insert CCMT120404-HMP NC3030 | CCMT 431-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for General Steel and Alloy Turning - 10pcs Box
High-Performance ISO-Standard 80° Diamond Indexable Turning Cutters for Industrial CNC Steel Turning & Facing Applications
1. Product Overview
"Which indexable turning insert is best suited for general CNC steel machining operations requiring a tough PVD substrate for intermittent cutting, excellent thermal shock resistance, and stable chip control during diverse feed conditions?" CNC programmers and machine shop supervisors frequently select the Korloy CCMT120404-HMP NC3030. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3030 PVD-coated grade optimized for general carbon steel, alloy steel, and stainless steel processing, combined with an 80° rhombic diamond geometry, a precise 0.4mm corner radius for fine profiling, and a specialized -HMP chipbreaker engineered to provide exceptional chip evacuation and superior surface finish parameters during semi-finishing and general turning processes.
2. Product Key Features
- NC3030 Advanced PVD Grade Technology: A tough, shock-resistant carbide substrate combined with an advanced multi-layer PVD coating engineered for steel and general alloy turning, providing superior resistance to chipping and thermal cracking during interrupted cuts.
- Versatile -HMP Chipbreaker Geometry: Positive rake angle design with optimized multi-stage breaker width minimizes cutting forces and ensures dependable chip control across a wide range of feeds and depths.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure pocket seating and exact interchangeability across standard 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 integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | CCMT120404-HMP | CCMT 431-HMP |
| Inscribed Circle / Size | 12.7 mm (1204 series) | 1/2" nominal (4 series / 12.7mm equivalent scale) |
| Insert Thickness (04) | 4.76 mm (3 thickness class) | 0.1875 inch (3/16" class) |
| Corner Radius (04) | 0.4 mm | 0.0156 inch (~1 radius designation scale) |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Alloy Steels (P15 - P35) | 130 - 270 | 0.08 - 0.22 |
| Stainless Steels (M10 - M30) | 100 - 200 | 0.07 - 0.18 |
Need matching SCLCR/SCLCL external turning tool holders or boring bars for your 12-series CCMT inserts?
Explore Compatible Turning Tool Holders4. Product Application Scenarios
The Korloy CCMT120404-HMP NC3030 insert performs exceptionally across precision manufacturing sectors:
- General CNC Turning & Intermittent Cuts: Reliable multi-pass turning on forged or cast steel components with minor surface irregularities.
- Job Shop Machining: Versatile application across carbon steels, alloy steels, and austenitic stainless steels without changing insert grades.
- Industrial Maintenance & Repair: Durable performance in workshop environments handling diverse alloy materials.
5. Compatibility
Designed to integrate seamlessly into standard industrial turning systems:
- Tool Holders: Fully compatible with SCLCR/SCLCL external turning tool holders and S-SCLCR internal boring bars configured for CCMT 1204 series inserts.
- CNC Machinery: Optimized for CNC lathes, turning centers, and general machining lines.
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 | NC3030 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, structural steel | Excellent (Primary General Steel PVD Grade with High Toughness) |
| M (Stainless Steel) | Austenitic and martensitic stainless steels | Good (Highly Suitable for Stainless Steel Intermittent Turning) |
| K (Cast Iron) | Gray cast iron, nodular iron | Moderate (Secondary application for light cast iron machining) |
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 the NC3030 PVD grade ideal for general steel and stainless steel turning?
A: NC3030 features a tough substrate combined with a high-toughness PVD coating designed to resist chipping and thermal shocks, making it exceptionally reliable for general machining and interrupted cuts.
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: Why choose a 0.4mm corner radius (-04) over a larger radius for turning operations?
A: The 0.4mm corner radius provides a sharper cutting point for tight corner profiling and cleaner finishing passes where dimensional precision is essential.
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.