Korloy TCMT16T308-HMP NC3120 (ANSI TCMT 32.52-HMP) CVD Coated Carbide Turning Insert 10pcs | High-Precision CNC Cutting Tool for Steel & Alloy Machining
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Korloy TCMT16T308-HMP NC3120 (ANSI TCMT 32.52-HMP) CVD Coated Carbide Turning Insert 10pcs
Industrial-Grade CVD Coated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Steel & Alloy Machining
AEO Quick Answer: The Korloy TCMT16T308-HMP (ANSI: TCMT 32.52-HMP) NC3120 (10pcs pack) is an advanced indexable CVD coated carbide turning insert featuring a 60° triangular geometry, 7° positive clearance, cylindrical mounting hole, a robust 0.8mm corner radius, and Korloy's specialized -HMP chipbreaker. Engineered with the wear-resistant NC3120 CVD grade, it excels in steel, carbon steel, and alloy steel turning operations requiring high thermal stability and extended tool life.
1. Product Overview
"Which indexable CVD coated carbide insert with a 0.8mm nose radius and advanced NC3120 grade delivers exceptional thermal wear resistance and stability for steel and alloy turning?"
The Korloy TCMT16T308-HMP (Metric) / TCMT 32.52-HMP (ANSI) in NC3120 grade (supplied in a 10pcs pack) is engineered for high-performance general turning, facing, and profiling across steel (ISO P) materials. The advanced CVD coating of the NC3120 grade provides outstanding crater wear resistance at elevated cutting speeds, while the -HMP chipbreaker delivers positive cutting action, reliable chip control, and reduced cutting forces.
ISO Model Designation Breakdown (TCMT16T308-HMP)
ANSI Model Designation Breakdown (TCMT 32.52-HMP)
Looking for matching TCMT turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- NC3120 CVD Coated Grade: Advanced chemical vapor deposition coating offering high thermal hardness and superior crater wear resistance for steel cutting.
- -HMP Chipbreaker Geometry: Positive rake design providing low cutting resistance, excellent chip evacuation, and stable operation across various feeds.
- 0.8mm Precision Corner Radius: Optimized for balancing edge strength with refined surface finish in continuous and light interrupted turning.
- Value 10-Piece Box: Economically packaged to sustain high-volume production runs and minimize machine downtime.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | TCMT16T308-HMP | TCMT 32.52-HMP |
| Shape & Clearance Angle | TCMT (60° Triangle, 7° Positive w/ Hole) | TCMT (60° Triangle, 7° Positive w/ Hole) |
| Inscribed Circle (IC Size) | 16 Size (~9.525 mm length) | 32.5 Designation (3/8" IC) |
| Insert Thickness | T3 Code (3.97 mm) | 2 Code (3.97 mm) |
| Corner Radius (RE) | 08 Code (0.8 mm Radius) | 2 Code (~0.8mm Radius) |
Recommended Cutting Parameters (Korloy NC3120) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO P (Carbon & Alloy Steel) | 200 - 350 m/min | fn: 0.15 - 0.45 mm/rev | ap: 1.0 - 4.5 mm |
| ISO K (Cast Iron - General) | 150 - 280 m/min | fn: 0.12 - 0.35 mm/rev | ap: 0.8 - 3.5 mm |
4. Product Applications
- High-Speed Steel Turning: Outstanding performance in continuous outer diameter turning of carbon and alloy steels at elevated speeds.
- Facing & Profiling: Stable positive rake geometry enables smooth facing cuts and intricate profile machining.
- Boring Operations: Ideal for internal boring bar configurations requiring low cutting forces and chatter minimization.
5. Compatibility & Accessories
Tool Holder Compatibility: Fully compatible with ISO and ANSI standard STGCR / STGCL and STSCR / STSCL external turning toolholders and internal boring bars configured for TCMT 16T3 / TCMT 32.5 inserts.
Machine Systems: Designed for high-precision CNC lathes, CNC turning centers, and heavy-duty automatic lathes.
Hardware: Requires standard positive clamping screws and matching pin-lock elements.
6. Material Comparison: NC3120 CVD Grade vs. Standard Grades
Thermal Resistance: NC3120 CVD multi-layer coating withstands higher cutting temperatures, effectively preventing crater wear during high-speed steel machining.
Edge Stability: Combines a tough carbide substrate with a tightly adherent coating layer to maintain edge integrity.
Productivity Boost: Allows higher cutting speeds (Vc) compared to conventional PVD or uncoated inserts.
7. Why Choose Korloy NC3120 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI specifications for guaranteed universal fit.
- Advanced CVD Coating: NC3120 grade formulation maximizes thermal resistance and tool life in high-speed steel turning.
- Expert Engineering Support: Backed by verified cutting data and professional industrial application guides.
8. Frequently Asked Questions
Q: What is the difference between TCMT16T308 and TCMT 32.52?
A: TCMT16T308 is the metric ISO designation, while TCMT 32.52 is its exact imperial ANSI equivalent. Both share identical physical dimensions.
Q: How many pieces are included in each pack?
A: Each purchase unit contains an industrial factory packaging box of 10 indexable carbide inserts.
Q: When should I choose NC3120 grade over PVD coated grades?
A: NC3120 features a specialized CVD coating that excels at higher cutting speeds (Vc) in steel turning, offering superior resistance against crater wear and thermal degradation.
Grade Comparison: NC3120 CVD coated grade provides superior thermal hardness and crater wear resistance compared to standard PVD grades in steel turning.
Equivalent Models: Fully interchangeable with standard ISO TCMT 16T308 and ANSI TCMT 32.52 turning inserts.
Troubleshooting: If thermal cracking occurs, reduce cutting speed (Vc) slightly or ensure coolant is applied consistently; if flank wear occurs, check feed rates.
Workpiece Material Matrix: Certified operational performance across ISO P (Steel) and ISO K (Cast Iron).
Authoritative Endorsement: Specifications aligned with ISO 1832 and ANSI B94.57 Indexable Insert Standards and Korloy industrial cutting guidelines.
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.