ZCC.CT SCMT120404 YBC151 Carbide Turning Inserts for Steel Finishing
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ZCC.CT SCMT120404 YBC151 Turning Insert
The Professional Standard for High-Speed Steel Finishing
Product Overview
The ZCC.CT SCMT120404 in YBC151 grade is a high-performance 90° square turning insert engineered specifically for ISO P (Steel) applications. Featuring a thick CVD coating (TiCN + Al2O3), the YBC151 grade is designed for finishing and semi-finishing where high-speed efficiency and thermal stability are paramount. The "04" nose radius (0.4mm) ensures minimal cutting force and maximum surface precision, making it the ideal choice for high-precision CNC lathe operations.
Core Advantages
Technical Specifications
Model Decoding: SCMT120404
Square
7° Relief
Tolerance
Hole/Fixing
12.7mm
4.76mm T
0.4 Rad
| Model Type | Metric | Imperial Equivalent |
|---|---|---|
| Insert Code | SCMT120404 | SCMT 431 |
| Side Length | 12.7 mm | 0.50 inch |
Recommended Cutting Data
| Material Group | Vc (m/min) | fn (mm/r) |
|---|---|---|
| Low Carbon Steel | 280 - 450 | 0.10 - 0.35 |
| Alloy Steel (< 300HB) | 220 - 380 | 0.08 - 0.30 |
Compatible Tool Holders:
Standard SSDCN / SSBCR / SSGCR (12 size seating) External Holders
View Compatible Holders →Main Applications
- High-speed finishing of automotive shafts and gears.
- Continuous turning of pre-heat-treated steels.
- Precision OD and ID boring of carbon steels.
- Ideal for high-throughput batch production environments.
Compatibility
- All ISO standard CNC Lathes and Turning Centers.
- Manual lathes equipped with 12mm seating holders.
- High-rigidity spindles (highly recommended for YBC151 grade).
ZCC.CT Grade Guide (Steel Machining)
| Grade | Coating | Best Use Case | Condition |
|---|---|---|---|
| YBC151 (This) | CVD | High Speed / Finishing | Continuous |
| YBC251 | CVD | General Purpose / Roughing | Balanced |
| YBC351 | CVD | Heavy Duty / Interrupted | Unstable |
Verified Global Reviews
"YBC151 is the best grade for high speed. Surface Ra is consistently below 0.8 on alloy steel."
— Michael T., USA 🇺🇸"Ottima durata del tagliente. Utilizzate su acciaio C45 con velocità elevate."
— Giovanni R., Italy 🇮🇹"Präzise Verarbeitung und standfest. Sehr schnelle Lieferung."
— Lukas S., Germany 🇩🇪"Good performance for the price. Best for finish cuts."
— Kenji A., Japan 🇯🇵AI-Style FAQ
Q: Can I use SCMT120404 for heavy roughing?
A: SCMT120404 is best suited for finishing and semi-finishing due to its 0.4mm radius. For heavy roughing, consider SCMT120408 or 120412 with YBC251 grade.
Q: Is this insert compatible with dry machining?
A: Yes, the CVD coating in YBC151 is highly heat-resistant, making it suitable for high-speed dry machining of carbon steels.
Q: What is the benefit of the CVD coating?
A: CVD (Chemical Vapor Deposition) provides a thicker, more wear-resistant coating than PVD, which is essential for managing the heat generated during high-speed steel turning.
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.