TaeguTec CCMT120408PC TT9225 | Carbide Turning Insert for Steel
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TaeguTec CCMT120408PC TT9225
High-Speed Productivity: The Ultimate CVD Specialist for Steel & Stainless
Product Overview
"Which carbide insert grade provides the longest tool life for high-speed continuous turning of alloy steels and stainless steel?"
The TaeguTec CCMT120408PC TT9225 is a premium 80° rhombic turning insert designed for ISO P (Steel) and ISO M (Stainless Steel) applications. Featuring the state-of-the-art TT9225 CVD coating, this grade acts as a superior thermal barrier, resisting crater wear even at elevated cutting speeds. The PC (Precision Cutting) chipbreaker is engineered with a sharp rake angle and positive geometry, which facilitates smooth chip flow and reduces cutting pressure. Combined with a robust 0.8mm corner radius, this insert delivers the perfect balance of edge strength and high-quality surface Ra.
Key Features
Thick Al2O3 layer provides exceptional heat resistance for high-velocity dry or wet machining.
Sharp cutting edge reduces radial forces, making it ideal for thin-walled parts and boring bars.
Offers significantly higher edge stability and feed rate capability compared to 0.4mm variants.
Technical Specifications
ISO Code Decoding: CCMT120408PC
80° Rhom.
7° Relief
Tolerance
Screw Fix
12.9mm L
4.76mm S
0.8mm Rad.
Chipbreaker
| Unit System | Designation | I.C. | Corner Radius |
|---|---|---|---|
| Metric (ISO) | CCMT120408PC | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | CCMT432PC | 0.500" | 0.031" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon/Alloy Steel | 180 - 350 m/min | 0.10 - 0.25 mm/rev |
| Stainless Steel (304/316) | 120 - 250 m/min | 0.08 - 0.20 mm/rev |
Compatible Holders
Optimized for standard SCLCR/L 12 external turning tools and S-SCLCR/L 12 internal boring bars.
Product Applications
- High-speed finishing and light-medium turning of 4140/4340 alloy steels.
- Precision boring of stainless steel valve bodies and fittings.
- Production machining of carbon steel shafts and precision pins.
- Automotive component manufacturing requiring consistent dimensional accuracy.
TaeguTec Grade Benchmarking
| Grade Name | Coating | Application Focus |
|---|---|---|
| TT9225 (CVD) | Thick Multi-Layer | Primary Choice: High-speed steel turning. |
| TT9080 (PVD) | Sub-micron PVD | Stainless/Exotics: Toughness & toughness. |
Why Choose TaeguTec?
TaeguTec, a premier member of the IMC Group, is a global leader in high-performance metallurgy. The TT9225 grade represents a technological leap in CVD coating, designed to minimize cycle times and maximize spindle uptime. By utilizing TaeguTec products, you invest in precision-engineered tools that guarantee consistent surface finishes and lower your overall cost-per-part in high-precision manufacturing.
Verified Global Feedback
"Superior Finish on 4140"
Replaced my previous CVD grade with TT9225. I was able to increase the feed by 15% while keeping a mirror finish.
— Precision Machining (USA)"Top Tier Grade"
The PC chipbreaker works perfectly on fine chips. Zero vibration even with 4x diameter boring depths.
— Maschinenbau West (Germany)"Very Stable on SS"
Using these for high-volume automotive parts. Heat resistance is top-notch. Very consistent life.
— AeroSpace Tech (Italy)Frequently Asked Questions
1. Is TT9225 better than PVD grades for interrupted cuts?
For heavy interrupted cuts, a PVD grade like TT9080 is often tougher. TT9225 is optimized for higher speeds and thermal stability in continuous turning.
2. Can I use this for high-temp alloys?
While it can handle them, TT9080 is generally preferred for Inconel and Titanium due to higher sharpness and chemical stability.
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.