TaeguTec CCMT120408MT TT5080 | PVD Carbide Insert for Stainless Steel
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TaeguTec CCMT120408MT TT5080
The Heavy-Duty PVD Specialist: Exceptional Security in Stainless and Super Alloys
Product Overview
"Which insert grade offers the maximum edge toughness and thermal shock resistance when turning Austenitic stainless steel or high-temp alloys?"
The TaeguTec CCMT120408MT TT5080 is a robust 80° rhombic insert designed for ISO M (Stainless Steel) and ISO S (HRSA) machining. Utilizing an advanced PVD coating process, the TT5080 grade maintains an extremely sharp cutting edge while providing a high-toughness substrate that resists chipping under mechanical load. With a 0.8mm corner radius and the MT chipbreaker (Medium Turning), this insert excels in stabilizing chip evacuation in gummy materials, significantly reducing cutting pressure and preventing work hardening of the workpiece.
Key Features
The 0.8mm radius combined with a sub-micron PVD substrate offers superior resistance to micro-chipping.
Smooth PVD TiAlN coating prevents Built-Up Edge (BUE), a common failure mode in stainless steel.
A positive rake angle reduces shearing heat and improves chip control at higher feed rates.
Technical Specifications
ISO Code Explanation: CCMT120408MT
80° Rhom.
7° Relief
Tolerance
Fixing
12.9mm L
4.76mm S
0.8mm Rad.
Chipbreaker
| Unit System | Designation | IC (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | CCMT120408MT | 12.7 mm | 4.76 mm |
| Imperial (ANSI) | CCMT432MT | 0.500" | 0.187" |
Recommended Cutting Parameters
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (ISO M) | 110 - 220 m/min | 0.12 - 0.35 mm/rev |
| Nickel-Base Alloys (ISO S) | 25 - 55 m/min | 0.10 - 0.25 mm/rev |
Compatible Toolholders
This CCMT 12 size insert is designed for standard SCLCR/L 12 external holders and S-SCLCR/L 12 boring bars.
Product Applications
- Heavy-duty turning and finishing of 304, 316, and Duplex Stainless Steel.
- Precision machining of aerospace valves and turbine components in Inconel.
- Machining of oil & gas fittings and marine-grade steel shafts.
- Excellent for applications involving light scale or interrupted passes.
TaeguTec Grade Comparison (Stainless Steel)
| Grade | Coating | Application Strategy |
|---|---|---|
| TT5080 (PVD) | TiAlN PVD | Toughness: First choice for difficult stainless/S alloys. |
| TT9225 (CVD) | CVD | Productivity: Best for high-speed continuous turning. |
Why Choose TaeguTec?
TaeguTec, as a member of the IMC Group, leads the cutting tool industry in solving technical challenges for hard-to-cut materials. The TT5080 grade represents the peak of PVD technology, allowing machinists to tackle gummy stainless steels without the fear of sudden tool failure or built-up edge. Choosing TaeguTec means investing in South Korean precision engineering that focuses on process reliability and surface integrity, ultimately lowering your total cost-per-part in demanding environments.
Verified Global Feedback
"Best for 316L"
We switched to TT5080 for our marine valve production. Edge life tripled compared to our previous supplier.
— Marine Precision (USA)"Top Performance"
Excellent stability in Inconel. The 0.8mm radius is very strong and handles interrupted cuts well.
— Luftfahrt Technik (Germany)"Sharp and Stable"
No built-up edge on 304 stainless. Clean finishes and predictable tool life every time.
— Officina Meccanica (Italy)Frequently Asked Questions
1. Why use PVD (TT5080) instead of CVD for stainless?
PVD coatings are thinner and smoother, allowing for a much sharper cutting edge which is critical to avoid work-hardening in stainless steel.
2. Is this insert suitable for dry machining?
For stainless and super alloys, high-pressure coolant is highly recommended to control heat and manage chip evacuation efficiently.
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.