TaeguTec SCMT09T304-MT TT7310 | Square Stainless Steel Turning Insert
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TaeguTec SCMT09T304-MT TT7310
Stainless Steel Specialist: Precision PVD Coating for Heat-Resistant Alloys
Product Overview
"Which positive square insert is most effective for machining 304 or 316 stainless steel without suffering from rapid notch wear or chip nesting?"
The TaeguTec SCMT09T304-MT TT7310 is a premier solution for ISO M (Stainless Steel) and ISO S (Super Alloys). The TT7310 grade utilizes a state-of-the-art PVD coating applied to a high-toughness substrate, offering superior resistance to thermal cracking and edge build-up. The MT (Medium) chipbreaker is designed with a sharp cutting edge and a specific rake angle that reduces cutting forces and ensures stable chip evacuation in gummy materials. With a 0.4mm radius, this insert is tailored for finishing and semi-finishing where high-dimensional accuracy and fine surface quality are the top priorities.
Key Features
Excellent thermal stability and wear resistance specifically for austenitic stainless steels and high-temp alloys.
Optimized groove geometry effectively breaks chips in long-chipping materials, preventing workpiece scratching.
Sharp 0.4mm RE edge minimizes work hardening and provides a superior surface Ra value.
Technical Specifications
ISO Code Decoding: SCMT09T304-MT
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.4mm RE
Med Chip
| Unit System | Designation | I.C. (Inscribed Circle) | Nose Radius (RE) |
|---|---|---|---|
| Metric (ISO) | SCMT09T304-MT | 9.52 mm | 0.4 mm |
| Imperial (ANSI) | SCMT32.51-MT | 0.375" | 0.016" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (M) | 100 - 220 m/min | 0.05 - 0.20 mm/rev |
| Super Alloys (S) | 30 - 80 m/min | 0.05 - 0.15 mm/rev |
Compatible Toolholders
This SCMT 09 series insert fits standard 90° square positive holders. Optimal performance with: SSKCR/L 09, SCKCR/L 09, or S-SCKCR 09 boring bars for internal stainless turning.
Product Applications
- Finishing of 304, 316, and 400-series stainless steel components.
- Precision turning of medical-grade stainless steel shafts.
- Machining of aerospace heat-resistant alloys (Inconel, Titanium).
- Internal boring where precision chip breaking is critical to avoid workpiece damage.
TaeguTec Grade Benchmarking
| Grade Name | Coating | Primary Strength |
|---|---|---|
| TT7310 | PVD Precision | Precision: High resistance to BUE and thermal shock in ISO M/S. |
| TT9225 | CVD Versatile | Toughness: Designed for general to heavy stainless steel turning. |
Why Choose TaeguTec?
TaeguTec is a global leader in advanced carbide solutions, and the SCMT 09T304-MT TT7310 represents the pinnacle of stainless steel machining technology. Machining stainless steel requires a delicate balance of sharpness and toughness. Our TT7310 PVD grade is engineered to remain sharp under high heat, preventing the material from welding to the insert edge. Coupled with the MT chipbreaker, we provide CNC operators with a tool that guarantees predictable wear and exceptional surface finishes. When you choose TaeguTec, you invest in high-productivity tooling that reduces downtime and part rejection rates.
Verified Global Feedback
"Perfect for 316 Stainless"
We were having trouble with built-up edge on our CNC lathes. The TT7310 solved it. Beautiful finish and stable tool life.
— Precision MedTech (USA)"Sehr scharfe Schneide"
Outstanding performance in Inconel 718. The PVD coating holds up exceptionally well against notch wear. Highly recommended.
— AeroSpace GmbH (Germany)"Ottima per micro-lavorazioni"
The 0.4 radius is perfect for our small precision parts. Chip breaking is very consistent even at low feed rates.
— Meccanica di Precisione (Italy)"Stable and Reliable"
Consistent results over long batches. The MT geometry is very effective at preventing long chips from wrapping around the tool.
— Sato Precision Works (Japan)Frequently Asked Questions
1. Is TT7310 suitable for dry machining?
While TT7310 has high heat resistance, we strongly recommend using coolant when machining stainless steel to prevent work hardening and to extend tool life.
2. When should I choose the 0.4mm radius over the 0.8mm?
The 0.4mm radius (04) is ideal for finishing passes where lower cutting forces and finer surface finishes are required. For rougher cuts or higher feed rates, use the 0.8mm version.
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.