ZCC.CT CCMT09T304-53 YBM251 Carbide Turning Inserts for Stainless Steel
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ZCC.CT CCMT09T304-53 YBM251: High-Performance Stainless Steel Machining
Product Overview
The ZCC.CT CCMT060204-53 YBM251 is a specialized industrial-grade insert engineered for M-group (Stainless Steel) applications. The YBM251 grade features a unique CVD coating with a smooth surface that reduces friction and heat generation—the primary enemies of stainless steel machining. Equipped with the 53 chipbreaker, this insert provides a reinforced cutting edge that stabilizes chip formation in semi-finishing operations, ensuring high dimensional accuracy and superior tool life in austenitic and duplex stainless steels.
Key Features
- Advanced YBM251 Grade: Specifically optimized for thermal shock resistance and anti-adhesion properties.
- 53 Roughing/Semi-Finishing Geometry: A versatile chipbreaker that excels in varying depths of cut (DOC).
- Nano-CVD Coating: Enhances surface hardness while maintaining the toughness of the carbide substrate.
- Superior Heat Dispersion: Engineered to handle the low thermal conductivity of stainless steel.
Technical Specifications
ISO Designation Decoding
80° Diamond
7° Relief
Tolerance
Hole/Slot
9.7mm Edge
3.97mm Thick
0.4mm Rad
Chipbreaker
| Measurement System | Model Designation | I.C. (Inscribed Circle) |
|---|---|---|
| Metric (ISO) | CCMT09T304-53 | 9.525 mm |
| Imperial (ANSI) | CCMT 32.51-53 | 3/8" |
Recommended Parameters for YBM251
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (M) | 150 - 260 m/min | 0.10 - 0.35 mm/r |
Compatible Tool Holders (S-Type):
Applications & Compatibility
Specifically optimized for semi-finishing to roughing operations in stainless steel alloys including:
ZCC.CT Grade Comparison (Stainless Steel)
| Grade | Condition | Primary Use |
|---|---|---|
| YBM151 | Continuous | Finishing / High Speed |
| YBM251 | Semi-Interrupted | Universal Semi-Finishing |
Customer Feedback
"Best for 316 Stainless"
"Using YBM251 in our German job shop. Extremely stable edge and finally found an insert that doesn't melt in 316."
— Lukas M., Germany
"Cost-Effective Precision"
"Performance matches high-end Japanese inserts at a fraction of the cost. The 53 chipbreaker is a lifesaver for stringy chips."
— John R., USA
"Ottimo prodotto"
"Spedizione veloce e inserti di ottima qualità per acciai inossidabili."
— Pietro V., Italy
FAQ - Technical Support
Q: Can YBM251 be used for dry machining?
A: While the CVD coating is heat resistant, we highly recommend high-pressure coolant when machining stainless steel to prevent work hardening and adhesion.
Q: What is the benefit of the 53 chipbreaker?
A: It is a reinforced geometry that balances edge strength with sharpness, making it ideal for the varying DOCs found in semi-finishing.
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.