TaeguTec CCMT09T304MT TT9225 | High-Speed CVD Stainless Steel Insert
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TaeguTec CCMT09T304MT TT9225
Advanced CVD Technology: The Specialist for High-Velocity Stainless Steel Machining
Product Overview
"Which insert grade is the absolute best for high-speed continuous finishing of austenitic stainless steel where surface Ra and heat resistance are the top priorities?"
The TaeguTec CCMT09T304MT TT9225 is a high-performance 80° rhombic insert engineered for ISO M (Stainless Steel). Featuring the cutting-edge TT9225 CVD coating, this grade provides an exceptional thermal barrier that allows for significantly higher cutting speeds (Vc) compared to traditional PVD grades. The MT chipbreaker (Medium Turning) incorporates a sharp edge geometry that lowers cutting pressure, effectively managing the gummy nature of stainless steel to produce a mirror-like surface finish while preventing work hardening.
Key Features
Thick CVD Al2O3 layer offers industry-leading resistance to crater wear during high-speed continuous cuts.
Optimized substrate prevents plastic deformation, ensuring dimensional accuracy across large production batches.
Balanced rake angle and sharp edge shear through work-hardening alloys with minimal friction and noise.
Technical Specifications
ISO Code Decoding: CCMT09T304MT
80° Rhom.
7° Relief
Tolerance
Fixing
9.7mm L
3.97mm S
0.4mm Rad.
Chipbreaker
| Unit System | Designation | IC (Inscribed Circle) | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CCMT09T304MT | 9.525 mm | 0.4 mm |
| Imperial (ANSI) | CCMT32.51MT | 0.375" | 0.016" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Austenitic Stainless (304/316) | 150 - 280 m/min | 0.05 - 0.20 mm/rev |
| Ferritic/Martensitic (400 series) | 140 - 250 m/min | 0.05 - 0.18 mm/rev |
Compatible Holders
This insert is precision-matched for SCLCR/L 09 external toolholders and S-SCLCR/L 09 boring bars.
Product Applications
- High-speed finishing of small-to-medium diameter stainless steel shafts.
- Precision boring of hydraulic valves and 316-grade stainless fittings.
- Mass production of automotive fuel system components in stainless alloys.
- Continuous turning operations where reducing cycle time is the primary goal.
TaeguTec Grade Comparison (Stainless Steel)
| Grade | Coating | Primary Application Strategy |
|---|---|---|
| TT9225 (CVD) | CVD Al2O3+TiCN | High Speed: Max heat resistance for continuous finishing. |
| TT5080 (PVD) | PVD TiAlN | Toughness: Interrupted cuts and low-speed stability. |
Why Choose TaeguTec?
TaeguTec, a proud member of the IMC Group, is a global powerhouse in metallurgical innovation. The TT9225 grade represents a major leap in CVD technology for stainless steel, designed for manufacturers who refuse to choose between cycle time and surface finish. By utilizing South Korean precision engineering, TaeguTec helps you tackle the thermal challenges of stainless steel, maximizing your spindle uptime and ensuring a lower cost-per-part in high-velocity production environments.
Verified Global Feedback
"Increíble velocidad"
We pushed the Vc in 316 stainless to 250m/min. The TT9225 held up better than any PVD grade we've ever used.
— Mecanizado Industrial (Mexico)"Perfect for mass production"
Outstanding predictability. We can run long continuous finishing passes without worrying about dimensional drift.
— Precision Components Ltd (UK)"Mirror finish"
The MT chipbreaker is fantastic. Clean chips and no work hardening on our surgical grade steel parts.
— MedTech Engineering (Germany)Frequently Asked Questions
1. Is TT9225 better than PVD for 304 stainless?
For high-speed continuous turning, yes. The CVD coating provides a much better heat shield. For light, interrupted cuts, PVD (TT5080) might be tougher.
2. Can I use this for internal boring?
Absolutely. The sharp MT geometry is excellent at reducing radial cutting forces, which helps prevent vibration in boring 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.