ZCC.CT CCMT120408-HM YBM251 Carbide Turning Inserts for Stainless Steel
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ZCC.CT CCMT120408-HM YBC151: Precision Turning Inserts for Steel
Product Overview
"Which insert grade is most efficient for high-speed continuous turning of carbon steel and alloy steel to achieve a superior surface finish?"
The ZCC.CT CCMT120408-HM YBC151 is a premier turning insert engineered for the P-group (Steel) materials. The YBC151 grade features a thick Al2O3 and TiCN CVD coating on a high-strength substrate, offering extreme hardness and thermal stability during high-speed operations. Coupled with the HM (Medium) chipbreaker, it provides exceptional versatility for medium machining, ensuring stable chip breaking and reducing cutting forces in both internal and external turning applications.
Key Features
- Premium YBC151 CVD Grade: Designed for high-speed finishing and semi-finishing of steel with excellent crater wear resistance.
- HM Universal Chipbreaker: Optimized for medium cutting depths, providing consistent chip control and reducing "bird-nesting" issues.
- High-Speed Stability: Advanced coating technology allows for higher cutting speeds (Vc), increasing overall productivity.
- Double-Sided Durability: Precision-engineered edges ensure predictable tool life and high surface integrity.
Technical Specifications
ISO Model Breakdown (CCMT 120408-HM)
80° Diamond
7° Relief
Tolerance
Hole/Chipbreak
12.9mm Edge
4.76mm Thick
0.8mm Radius
Medium Cut
| Metric Model | ANSI/Imperial Equivalent |
|---|---|
| CCMT120408-HM | CCMT 432-HM |
Recommended Cutting Data
| Workpiece Material | Cutting Speed (Vc) | Feed rate (fn) |
|---|---|---|
| Carbon Steel (P10-P25) | 220 - 450 m/min | 0.15 - 0.45 mm/rev |
| Alloy Steel | 180 - 380 m/min | 0.10 - 0.35 mm/rev |
Holder Compatibility
Designed for External and Internal Boring Operations:
Fits all standard S-Type screw-clamping tool holders.
Applications
The CCMT 120408-HM is the industrial choice for Medium Machining and Finishing of steel in:
ZCC.CT Grade Comparison (Steel)
| Grade | Working Condition | Core Advantage |
|---|---|---|
| YBC151 | High Speed / Continuous | Extreme Wear Resistance |
| YBC251 | General Purpose / Universal | Balanced Performance |
Customer Feedback
"Excellent Surface Finish"
"Used YBC151 on alloy steel. The surface finish is mirror-like. Tool life is very stable at high speeds."
— Markus R., Germany
"Consistent Quality"
"These inserts outperform many premium brands on our CNC lathe. The HM chipbreaker works perfectly for our medium cuts."
— Robert T., USA
"Great Performance"
"Good chip control and heat resistance. We've seen a significant reduction in tooling costs in our shop."
— Luca M., Italy
"Reliable and Productive"
"Process stability is key for us. The CCMT 120408-HM provides predictable tool wear every time."
— Kenji S., Japan
Frequently Asked Questions
Q: Can YBC151 be used for interrupted cuts?
A: YBC151 is optimized for stable, continuous high-speed cutting. For interrupted cuts, we recommend using YBC251 for better toughness.
Q: Is this insert suitable for stainless steel?
A: While it can cut stainless, the YBM series (like YBM151 or YBM251) is specifically optimized for M-group materials to prevent built-up edge.
Q: When should I choose the HM chipbreaker over HF?
A: Choose HM for general-purpose medium machining. Choose HF if your primary focus is high-precision finishing with smaller cutting depths.
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.