ZCC.CT CCMT09T308-53 YBC251 Carbide Turning Inserts for Steel
Price shown is a starting point. Contact us for a precise quote based on your requirements.
ZCC.CT CCMT09T308-53 YBC251: The Versatile Choice for Steel Turning
Product Overview
"Which insert is most reliable for general-purpose steel machining, offering a balance between toughness for interrupted cuts and wear resistance for continuous turning?"
The ZCC.CT CCMT09T308-53 YBC251 is a highly versatile carbide insert designed for the P-group (Steel). The YBC251 grade combines a high-strength substrate with a multi-layer CVD coating (TiCN + Thick Al2O3), providing exceptional edge toughness and crater wear resistance. The -53 chipbreaker is specifically optimized for semi-finishing to light medium-duty machining, featuring a unique geometry that ensures smooth chip evacuation and reduces cutting forces, making it ideal for varying depths of cut in carbon and alloy steels.
Key Features
- YBC251 Versatile Grade: The "universal" grade for steel, offering superior impact resistance for light interrupted cuts.
- -53 Chipbreaker Design: Excellent chip control range, preventing chip tangling and workpiece marring.
- CVD Coating Technology: Advanced thick Al2O3 layer ensures thermal protection during high-temperature dry or wet cutting.
- Optimized Edge Toughness: Reduced risk of edge chipping, even when machining slightly irregular surfaces.
Technical Specifications
ISO Model Breakdown (CCMT 09T308-53)
80° Diamond
7° Relief
Tolerance
Hole/Chipbreak
9.7mm Edge
3.97mm Thick
0.8mm Radius
Semi-Finish
| Metric Model | ANSI/Imperial Equivalent |
|---|---|
| CCMT09T308-53 | CCMT 32.52-53 |
Recommended Machining Parameters
| Material Group (P) | Cutting Speed (Vc) | Feed rate (fn) |
|---|---|---|
| Low Carbon Steel | 240 - 380 m/min | 0.10 - 0.35 mm/rev |
| Alloy Steel | 180 - 320 m/min | 0.12 - 0.30 mm/rev |
Tool Holder Compatibility
Optimized for External and Boring Bar Operations:
Fits all standard S-Type screw-clamping tool holders.
Applications
The CCMT 09T308-53 YBC251 is the go-to tool for Semi-Finishing in:
ZCC.CT Steel Grade Selection Guide
| Grade | Machining Condition | Best For |
|---|---|---|
| YBC151 | Stable / High Speed | Finishing (Wear Resistance) |
| YBC251 | General Purpose | Semi-Finish (Balanced) |
Customer Reviews
"Reliable Workhorse"
"Used YBC251 in our shop in the USA. It handles various steel grades without needing to change inserts constantly. Very cost-effective."
— James P., USA
"Best Chip Evacuation"
"The -53 chipbreaker is a lifesaver in Germany for long-turning tasks. No more bird-nesting issues."
— Dieter H., Germany
"Stable Part Finishes"
"Running these in Italy for medium production. Tolerances are held perfectlypart after part."
— Paolo V., Italy
"Great for Interrupted Cuts"
"Shocked by the toughness in Japan. Even with slight vibrations, the edge doesn't crack easily."
— Kenji S., Japan
Frequently Asked Questions
Q: What is the main benefit of the -53 chipbreaker?
A: It is designed specifically for semi-finishing of steel, providing excellent chip breaking at medium feed rates and preventing chip welding.
Q: Is this insert suitable for dry machining?
A: Yes, the CVD coating on YBC251 is highly heat-resistant, but using coolant will generally extend tool life significantly.
Q: Can I use this for boring small holes?
A: Absolutely, provided your boring bar uses a CCMT 09T3 pocket (minimum bore diameter depends on the bar holder).
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.