TaeguTec SCMT09T308-MT TT7015 | Square Cast Iron Turning Insert
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TaeguTec SCMT09T308-MT TT7015
Cast Iron Specialist: High-Velocity CVD Coating for Abrasive ISO K Materials
Product Overview
"Which positive square insert is best optimized for high-speed turning of cast iron components without suffering from rapid flank wear?"
The TaeguTec SCMT09T308-MT TT7015 is a dedicated solution for ISO K (Cast Iron) machining. The TT7015 grade features a thick, multi-layered CVD coating that provides an ultra-hard surface to resist the abrasion caused by sand inclusions and graphite flakes in grey and ductile iron. The MT (Medium) chipbreaker geometry is designed to balance cutting edge sharpness with thermal strength, effectively managing chips during medium turning passes. With a 0.8mm radius, this insert delivers excellent durability and surface finish, making it the industry standard for engine blocks, brake discs, and pump housings.
Key Features
Optimized for high-speed machining of grey and nodular cast iron with exceptional flank wear resistance.
A stable chipbreaker design that prevents vibration and ensures smooth material removal in intermittent cuts.
The 0.8mm nose radius provides a robust corner for high-feed applications and extended tool life.
Technical Specifications
ISO Code Decoding: SCMT09T308-MT
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.8mm RE
Med Chip
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SCMT09T308-MT | 9.52 mm | 3.97 mm |
| Imperial (ANSI) | SCMT32.52-MT | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Grey Cast Iron (K) | 250 - 500 m/min | 0.15 - 0.40 mm/rev |
| Ductile Iron (K) | 180 - 350 m/min | 0.15 - 0.35 mm/rev |
Compatible Toolholders
This SCMT 09 series cast iron insert fits standard 90° square positive holders. Compatible with: SSKCR/L 09, SCKCR/L 09, or S-SCKCR 09 boring bars for internal turning.
Product Applications
- High-speed turning of grey cast iron engine components.
- Machining of nodular/ductile iron steering knuckles and housings.
- General turning of abrasive cast iron materials in automated CNC lines.
- Boring operations where high wear resistance is required to maintain tolerances.
TaeguTec Grade Comparison for Cast Iron
| Grade Name | Coating | Primary Strength |
|---|---|---|
| TT7015 | Hard CVD | High Speed: Maximum wear resistance in stable cast iron jobs. |
| TT7005 | Ultra-Hard CVD | Performance: Specialized for extremely high-velocity finishing. |
Why Choose TaeguTec?
TaeguTec is a global pioneer in metal cutting technology, and the SCMT 09T308-MT TT7015 represents the pinnacle of cast iron machining solutions. We recognize that cast iron poses unique challenges, from high abrasive wear to thermal shock. Our TT7015 grade is engineered with a proprietary thick CVD coating that acts as a thermal barrier and an armor against abrasion. The MT chipbreaker is optimized to ensure that even in the most demanding CNC environments, you achieve consistent chip control and superior surface finishes. When you choose TaeguTec, you choose industrial reliability and a lower cost-per-part.
Verified Global Feedback
"Excellent Life in Grey Iron"
We produce thousands of brake rotors monthly. TT7015 provides the most stable tool life we've found for these high-speed operations.
— Automotive Precision (USA)"Hervorragende Verschleißfestigkeit"
Outstanding resistance to abrasive wear in nodular iron. We were able to increase our cutting speeds by 20% over our previous supplier.
— Gießerei-Zerspanung GmbH (Germany)"Ottimo controllo del truciolo"
The MT chipbreaker handles ductile iron perfectly. No chip nesting, even in internal boring. Very satisfied.
— Meccanica Lombarda (Italy)"Reliable for Cast Iron"
Consistency is key for our automation. The TT7015 wear pattern is predictable, allowing us to plan tool changes accurately.
— Sato Heavy Industries (Japan)Frequently Asked Questions
1. Is TT7015 suitable for interrupted cuts in cast iron?
TT7015 is optimized for continuous and light interrupted cuts. For heavy interrupted cuts or extremely unstable setups, consider TT7025 for increased toughness.
2. Can I use this insert for steel (ISO P) materials?
The TT7015 grade is specifically formulated for cast iron. While it can cut steel, it may suffer from premature cracking due to lack of steel-specific coating properties. We recommend TT8125 for steel.
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.