Korloy Indexable Turning Insert CCMT09T302-HMP NC3220 | CCMT 32.51-HMP (Imperial Equivalent) Advanced CVD Coated Carbide Inserts for General Steel Turning - 10pcs Box
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Korloy Indexable Turning Insert CCMT09T302-HMP NC3220 | CCMT 32.51-HMP (Imperial Equivalent) Advanced CVD Coated Carbide Inserts for General Steel Turning - 10pcs Box
High-Performance ISO-Standard 80° Diamond Indexable Turning Cutters for Industrial CNC General Steel Finishing & Semi-Finishing Applications
1. Product Overview
"Which indexable turning insert is best suited for general CNC steel turning operations requiring a versatile, fracture-resistant CVD-coated grade with high thermal stability and consistent chip evacuation across continuous and light interrupted cuts?" CNC programmers and machine shop supervisors frequently select the Korloy CCMT09T302-HMP NC3220. This industrial-grade indexable carbide turning insert features an advanced CVD-coated carbide grade optimized for carbon and alloy steels (ISO P-class), combined with an 80° rhombic diamond geometry, a precise 0.2mm corner radius for fine finishing accuracy, and an engineered -HMP chipbreaker designed to provide dependable chip control, reduced cutting forces, and extended tool life during diverse workshop machining processes.
2. Product Key Features
- NC3220 Advanced CVD Coated Grade Technology: A tough, heat-resistant carbide substrate combined with a specialized multilayer CVD coating engineered specifically for general steel (ISO P-class) turning, offering an optimal balance of wear resistance and edge toughness.
- Stable -HMP Chipbreaker Geometry: Positive rake angle design with optimized breaker width minimizes cutting forces and ensures dependable chip control across light to medium finishing 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 | CCMT09T302-HMP | CCMT 32.51-HMP |
| Inscribed Circle / Size | 9.525 mm (09T3 series) | 3/8" nominal (32.5 series / ~9.525mm equivalent scale) |
| Insert Thickness (T3) | 3.97 mm (5/32" class) | 0.1563 inch (2 thickness class) |
| Corner Radius (02) | 0.2 mm | 0.0078 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 & Low-Alloy Steels (P15 - P35) | 140 - 280 | 0.06 - 0.20 |
| Alloy Steels & Tool Steels | 110 - 220 | 0.05 - 0.18 |
Need matching SCLCR/SCLCL external turning tool holders or boring bars for your 09-series CCMT inserts?
Explore Compatible Turning Tool Holders4. Product Application Scenarios
The Korloy CCMT09T302-HMP NC3220 insert performs exceptionally across general steel manufacturing sectors:
- General Mechanical Engineering: Universal turning and finishing of carbon steel shafts, pins, and structural components.
- Automotive Transmission Components: Machining forged steel gears, hubs, and drive shafts requiring reliable wear resistance.
- General Industrial Maintenance: Versatile repair and production turning across a wide spectrum of alloy and carbon steels.
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 09T3 series inserts.
- CNC Machinery: Optimized for conventional CNC lathes, turning centers, and flexible 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 | NC3220 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steel, alloy steel, structural steel | Excellent (Primary General Steel CVD Application) |
| K (Cast Iron) | Gray iron, ductile iron | Moderate (Functional for light finishing passes) |
| M (Stainless Steel) | Austenitic stainless steels | Limited (PVD grades like PC9030 recommended) |
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 distinguishes the NC3220 grade from high-speed steel grades in general workshop applications?
A: NC3220 utilizes a versatile CVD coating architecture balanced for general steel turning, providing superior thermal wear resistance across varied cutting speeds compared to specialized high-speed grades.
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: Is the CCMT09T302-HMP NC3220 suitable for continuous and light intermittent turning?
A: Yes. The tough substrate and reliable CVD coating allow NC3220 to maintain edge stability during continuous cutting as well as light interrupted steel turning operations.
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.