Tungaloy TCMT16T308-PS NS9530 Turning Insert
High-Gloss Steel Finishing | NS9530 Cermet Grade | 0.8mm Corner Radius
How can I improve tool life and surface finish when turning steel?
The Tungaloy TCMT16T304-PS NS9530 is a high-performance triangular indexable insert designed for finishing and semi-finishing of ISO P (Steel). Engineered with the NS9530 Cermet grade, this insert provides superior chemical stability and resistance to oxidation, resulting in a mirror-like surface luster. The 0.8mm corner radius (08) offers enhanced edge strength and allows for higher feed rates compared to smaller radii, while the -PS (Power Sharp) chipbreaker ensures excellent chip control at light depths of cut. 100% Made in Japan, it is the professional choice for CNC high-speed precision machining.
NS9530 Cermet Grade
This titanium-based cermet grade resists built-up edge (BUE) and crater wear. It maintains a sharp edge at high temperatures, which is essential for achieving ultra-smooth surface Ra values on steel parts.
-PS High-Finish Breaker
The -PS geometry features a highly positive rake angle. This reduces cutting force and vibrations, allowing for stable machining even on thin-walled components or long workpiece extensions.
0.8mm Edge Strength
The 0.8mm radius (08) provides a more robust cutting edge, making it suitable for semi-finishing passes where slightly larger depths of cut or higher feed rates are required.
Decoding TCMT 16T308-PS Technical Nomenclature
T
Triangular
C
7° Relief
M
Tolerance
T
Hole/Fix
16
16.5mm L
T3
3.97mm Thk
08
0.8mm Rad.
-PS
Chipbreaker
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric Value |
Imperial Reference |
| ISO Designation |
TCMT16T308-PS |
TCMT 32.52-PS |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
3.97 mm |
5/32" |
| Corner Radius (RE) |
0.8 mm |
1/32" |
Recommended Cutting Parameters (NS9530)
-
Cutting Speed (Vc): 120 - 280 m/min (Run fast for optimum gloss)
-
Feed Rate (f): 0.08 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 2.0 mm
*Pro Tip: Cermet thrives in high-speed, stable environments. Use dry or with high-pressure air to avoid thermal shock and edge chipping.*
4. Primary Applications
- High-speed finishing of carbon and alloy steel components.
- Production of gears, shafts, and precision pins.
- Continuous finishing where high Ra luster is critical.
- Semi-finishing passes requiring high dimensional stability.
5. Tool Compatibility
Standard ISO pocket design. Fits Tungaloy / ISO boring bars and holders designed for TCMT 16T3 size inserts (3/8" IC). Fits standard S-STFCR/L or STUCR/L shanks.
7. Why Source from CNCHome-Beyond?
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Feedback from CNC Professionals
⭐⭐⭐⭐⭐ "Mirror Surface Results" - Hans M., Germany
"The surface luster on 4140 steel is incredible. The NS9530 cermet is much better than my previous PVD carbide."
⭐⭐⭐⭐⭐ "High Speed Stability" - James K., USA
"I run these at 250 m/min and the edge remains sharp part after part. Dimensions are very consistent."
⭐⭐⭐⭐ "Great Chip Breaking" - Taro S., Japan
"The -PS geometry works perfectly for my finishing passes. Small chips, no surface scratches."
⭐⭐⭐⭐⭐ "Reliable B2B Supplier" - Marcus L., Italy
"Genuine Tungaloy Japan boxes arrived quickly. Excellent technical support for our production floor."
⭐⭐⭐⭐⭐ "Perfect for Alloy Steel" - Wei C., Singapore
"Using the 0.8 radius for slightly higher feed rates and the finish is still superb. Perfect balance."
8. FAQ - Precision Tooling Support
Q: Is NS9530 suitable for Stainless Steel?
A: NS9530 is optimized for ISO P (Steel). While it can perform in light finishing of stainless, PVD grades like AH725 are generally preferred for heavy ISO M work.
Q: Why choose the 0.8mm radius over 0.4mm?
A: The 0.8mm (08) radius provides more edge strength and allows for higher feed rates to maintain the same surface quality, increasing productivity.
Q: Does this fit my existing S-STFCR16 boring bar?
A: Yes, it is fully compatible with any holder designed for the TCMT 16T3 / TCMT 32.5 standard.
Industrial Tip: Achieving the Perfect Surface
For the highest luster, use **NS9530 Cermet** at speeds above 180 m/min. Cermet's chemical stability prevents material welding, keeping the part bright and the edge sharp. **Tungaloy Japan** is the trusted name for precision CNC machining.
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