Tungaloy SCMT09T308-PS AH725 Insert
Reliable Steel & Stainless Turning | -PS Chipbreaker | AH725 PVD Grade
What is the best PVD insert for machining stainless and alloy steel?
The Tungaloy SCMT09T308-PS AH725 is a high-performance square carbide turning insert designed for versatility and edge toughness. Utilizing the advanced AH725 PVD coated grade, this insert provides exceptional resistance to chipping and thermal cracking, making it the primary choice for finishing to medium cutting of steel and stainless steel. The -PS chipbreaker features a sharp, positive rake angle that minimizes cutting forces and enhances surface quality. Made in Japan, this CNC square insert is engineered for precision components where reliability and consistency are non-negotiable.
Tough AH725 PVD Grade
Combines a high-aluminum content (Al-rich) PVD coating with a tough carbide substrate, ensuring excellent resistance to flank wear and built-up edge.
-PS Finishing Breaker
Optimized for light-to-medium depths of cut, this breaker ensures stable chip control even in gummy materials like 304 or 316 stainless.
Premium Surface Integrity
The thin, smooth PVD coating maintains a sharp cutting edge, drastically reducing cutting temperatures and vibration.
Decoding SCMT09T308-PS Technical Nomenclature
S
Square
C
7° Relief
M
Tolerance
T
Hole/Fix
09
9.52mm Size
T3
3.97mm Thick
08
0.8mm Rad.
PS
Breaker
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric (ISO) |
Imperial Equiv. |
| Inscribed Circle (IC) |
9.525 mm |
3/8 inch |
| Thickness (S) |
3.97 mm |
5/32 inch |
| Corner Radius (RE) |
0.8 mm |
1/32 inch |
| Hole Diameter (D1) |
4.4 mm |
0.173 inch |
Recommended Cutting Parameters (AH725 Grade)
-
Cutting Speed (Vc): 80 - 180 m/min (Balanced Performance)
-
Feed Rate (f): 0.10 - 0.30 mm/rev (Optimized for 0.8mm Radius)
-
Depth of Cut (Ap): 0.5 - 2.5 mm
*Note: AH725 is a "Gold Standard" grade for small to medium lathes due to its balanced toughness.*
4. Product Applications
- General turning of carbon and alloy steels (P20-P30).
- Medium-duty machining of austenitic stainless steel (304, 316).
- Suitable for semi-finishing of titanium and heat-resistant alloys.
- Excellent for high-volume automotive part manufacturing.
5. Tool Compatibility
Fits all standard SSDCN and SSKCR/L turning tool holders designed for 9.52mm square inserts (Size 09T3). Universal fit for CNC lathes and manual centers.
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Original Japanese Parts
Industrial Authority
Supply Chain Experts for Geely Auto
B2B Technical Support
Pro Machining Consultations
Rapid Global Delivery
Express Worldwide Shipping
Global User Feedback
⭐⭐⭐⭐⭐ "Workhorse on Stainless" - James W., Australia
"The AH725 grade is incredibly stable on 316 stainless. I've tripled my tool life compared to standard carbide."
⭐⭐⭐⭐⭐ "Reliable Chip Control" - B. Schmidt, Germany
"The -PS breaker breaks chips beautifully even at lower feed rates. Surface finish is top tier."
⭐⭐⭐⭐ "Great Corner Strength" - Y. Nakamura, Japan
"The 0.8mm radius is very strong. I use it for medium turning on alloy steel shafts with perfect results."
⭐⭐⭐⭐⭐ "Trusted B2B Partner" - F. Rossi, Italy
"Fast shipping and authentic Tungaloy stock. CNCHome-Beyond is our primary source for industrial inserts."
⭐⭐⭐⭐⭐ "Smooth Cutting" - L. Tan, Singapore
"Low vibration and very sharp edge. Perfect for our small CNC lathe batch production."
8. FAQ - Professional Support
Q: Is AH725 better than AH120 for steel?
A: Yes. AH725 is a more advanced PVD grade with higher aluminum content, offering superior heat and wear resistance for steel materials.
Q: Can I use this for interrupted cutting?
A: Absolutely. The PVD coating and tough substrate of AH725 are specifically designed to handle the mechanical shock of interrupted cuts better than thick CVD coatings.
Q: What tool holder do I need?
A: Use any standard ISO holder that accepts SCMT 09T3 size (like the SSDCN series).
Expert Tip: Why 0.8mm Radius for PVD?
While 0.4mm is for fine finishing, the 0.8mm radius (Size 308) provides significantly better edge strength. Combined with the AH725 PVD grade, it allows you to push higher feed rates while maintaining a sharp cutting action, making the SCMT09T308-PS the perfect "all-rounder" for any machine shop.
© Technical Data by cnchome-beyond.com - Industrial Quality Authority
