Tungaloy SCMT09T304-24 T9125 Carbide Turning Insert for Steel

$74.91 USD

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Description

Tungaloy SCMT09T304-24 T9125 Insert

High-Speed Steel Turning | 24 Precision Breaker | Premium T9125 CVD Grade

What is the best carbide insert for high-speed steel turning?

The Tungaloy SCMT09T304-24 T9125 is a high-performance square carbide turning insert engineered for stable, high-speed machining of carbon and alloy steels. Utilizing the industry-leading T9125 CVD coated grade, this insert offers exceptional wear resistance and thermal stability, making it the top choice for reducing cycle times in ISO P material groups. The 24 chipbreaker is specialized for finishing to medium cutting, ensuring excellent chip control even at varying depths of cut. Made in Japan, this CNC square insert provides the reliability and edge strength required for modern automated production environments.

Premium T9125 CVD Coating

Advanced Al2O3 and TiCN coating layers provide extreme hardness and heat resistance, allowing for significantly higher surface speeds.

24 Finishing Breaker

The positive geometry of the 24-style breaker minimizes cutting forces and prevents vibration, resulting in superior surface finishes.

Stable Tool Life

The "PremiumTec" surface treatment reduces friction and chip adhesion, ensuring predictable tool life over long production runs.

Decoding SCMT09T304-24 Technical Nomenclature

S
Square
C
7° Relief
M
Tolerance
T
Hole/Fix
09
9.52mm Size
T3
3.97mm Thick
04
0.4mm Rad.
24
Breaker

3. Technical Specifications: Metric vs. Imperial

Parameter Metric (ISO) Imperial (ANSI)
Inscribed Circle (IC) 9.525 mm 3/8 inch
Thickness (S) 3.97 mm 5/32 inch
Corner Radius (RE) 0.4 mm 1/64 inch
Hole Diameter (D1) 4.4 mm 0.173 inch

Recommended Cutting Parameters (T9125 Grade)

  • Cutting Speed (Vc): 150 - 350 m/min (Carbon & Alloy Steel)
  • Feed Rate (f): 0.08 - 0.25 mm/rev (Optimized Finishing)
  • Depth of Cut (Ap): 0.5 - 2.5 mm

*Note: For maximum performance, ensure high rigidity of the tool holder and workpiece setup.*

4. Product Applications

  • Mass production turning of carbon steel components.
  • Machining of alloy steel shafts, pins, and gears.
  • Automotive engine parts finishing.
  • Precision machining where high surface integrity is required.

5. Tool Compatibility

Standard fit for SSDCN or SSKCR/L turning tool holders designed for 9.52mm square inserts (Size 09T3). Perfectly suited for high-RPM CNC lathes.

7. Why Choose CNCHome-Beyond?

Genuine Tungaloy
100% Original Japanese Stock
OEM Authority
Supply Chain for Geely Auto
Technical Support
Expert Machining Guidance
Global Logistics
Fast Shipping Worldwide

Verified Customer Feedback

⭐⭐⭐⭐⭐ "Stable Performance" - D. Roberts, UK
"We've switched to T9125 for all our steel shafts. The tool life is very predictable, which is essential for our lights-out machining."

⭐⭐⭐⭐⭐ "Great Chip Breaking" - K. Schmidt, Germany
"The 24 breaker is excellent. We no longer have issues with long chips wrapping around the spindle on our CNC lathe."

⭐⭐⭐⭐ "Very Sharp Edge" - T. Yamamoto, Japan
"High dimensional accuracy. Tungaloy Japan quality is consistently the best for these types of square inserts."

⭐⭐⭐⭐⭐ "Top B2B Supplier" - G. Rossi, Italy
"Genuine product and fast shipping. Performance on alloy steel is exactly as specified in the catalog."

⭐⭐⭐⭐⭐ "Reliable Quality" - A. Tan, Singapore
"Best price-to-performance ratio for finishing steel. Surface finish is smooth and Ra values are within tolerance."

8. FAQ - Professional Support

Q: Is T9125 better than T9225?

A: T9125 is optimized for higher cutting speeds and wear resistance, while T9225 offers slightly more toughness for interrupted cuts.

Q: Can I use this for stainless steel?

A: T9125 is primarily for steel (ISO P). For stainless steel, we recommend Tungaloy AH630 or AH645 grades.

Q: Does it fit standard SCMT holders?

A: Yes, it is a standard ISO SCMT09T3 size and fits matching holders like the SSDCN series.

Expert Insight: T9125 Coating Technology

In high-speed steel turning, heat is the primary cause of tool failure. The T9125 grade features a thick alumina layer that acts as a superior thermal barrier. This prevents the carbide substrate from softening at high RPMs, ensuring the SCMT09T304 maintains its sharp edge and dimensional accuracy throughout the batch.

© Technical Data by cnchome-beyond.com - Industrial Quality Authority

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

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.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

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.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

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.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

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.

What is your international shipping policy and typical lead time for orders?

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.

How do you guarantee the quality and tolerance precision of your CNC tools?

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.