Mitsubishi CCMT060204 US735 Carbide Turning Insert for Stainless Steel (10pcs)
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CCMT060204 US735
Stainless Steel Workhorse | PVD Coated Carbide | 0.4mm Radius
Material & Coating Science
US735 Grade (PVD Toughness): The US735 is specifically designed for Stainless Steel (ISO M) and High-Temperature Alloys (ISO S). The PVD (Physical Vapor Deposition) coating is thinner and sharper than CVD coatings, which is essential to prevent work-hardening in gummy materials like 304 or 316 stainless. The substrate offers extreme resistance to thermal cracking and notch wear.
0.4mm Radius (The Versatile Standard): The 0.4mm (1/64") radius provides a perfect balance. It is robust enough to handle the varying chip loads of semi-finishing while being sharp enough to produce a superior surface finish in precision boring and external turning.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMT060204 | 6.35 mm | 2.38 mm | 0.40 mm |
| Imperial | CCMT21.51 | 1/4" | 3/32" | 0.0157" |
Recommended Cutting Parameters
*US735 excels at moderate speeds with consistent chip loads. High-pressure coolant is highly recommended.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 90 - 180 m/min | 0.05 - 0.15 mm/r | 0.20 - 1.20 mm |
| Duplex Stainless Steel | 60 - 120 m/min | 0.05 - 0.12 mm/r | 0.20 - 1.00 mm |
Required Tool Holder
Maximum performance for SCLCR/L 06 Boring Bars and External Holders:
Shop SCLCR 06 HoldersGrade Comparison: US735 vs VP15TF
US735 (PVD): The Stainless Specialist. It features a tougher substrate designed to absorb the mechanical shocks of machining tough, high-nickel alloys.
VP15TF (PVD): The General Versatility choice. While VP15TF works well across steel and stainless, US735 will consistently provide longer tool life in dedicated stainless steel production runs.
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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.