ZCC.CT SCMT09T308-HM YBM251 Carbide Turning Inserts for Stainless Steel
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ZCC.CT SCMT09T308-HM YBM251 Turning Insert
Premium CVD Solution for High-Efficiency Stainless Steel Machining
Product Overview
The ZCC.CT SCMT09T308-HM in YBM251 grade is a powerhouse for modern CNC lathes. Specifically engineered for ISO M (Stainless Steel), this insert combines a high-toughness substrate with an advanced CVD coating. The HM chipbreaker features a reinforced cutting edge and a wider chip groove, making it ideal for medium machining applications. It effectively balances wear resistance with impact toughness, ensuring stable performance even in slightly interrupted cuts.
Core Advantages
Optimized multi-layer Al2O3/TiCN coating provides superior thermal barrier and prevents built-up edge (BUE).
The "Medium" chipbreaker design ensures smooth chip evacuation at varying depths of cut, reducing machine vibration.
Offers increased edge strength and better surface quality (Ra) compared to smaller radii for high-feed operations.
Technical Specifications
ISO Model Decoding
Square
7° Relief
Tol.
Hole
9.5mm IC
3.97mm T
0.8 Rad
Medium
| Feature | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Model Number | SCMT09T308-HM | SCMT 3(2.5)2-HM |
| Inscribed Circle | 9.525 mm | 0.375 inch |
Recommended Cutting Parameters
| Material | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Stainless Steel (Austenitic) | 140 - 250 | 0.12 - 0.45 |
| Martensitic / Ferritic SS | 120 - 210 | 0.10 - 0.35 |
Recommended Tool Holder Connection:
Fits SSDCN / SSBCR / SSGCR (09 Size) External Holders & Boring Bars
View Compatible Holders →Main Applications
- OD and ID turning of stainless steel.
- Medium-duty continuous to light-interrupted cuts.
- Suitable for 304, 316, and duplex stainless materials.
- Aerospace, medical, and food industry component machining.
Compatibility
- Fits all ISO standard SSDCN/SSGCR tool holders.
- Optimal for CNC Lathes with high stability.
- Compatible with high-pressure coolant systems.
Grade Comparison Matrix (ZCC.CT)
| Grade | Coating Type | Target Material | Speed Level |
|---|---|---|---|
| YBM251 (This) | CVD | Stainless Steel | Medium-High |
| YBG205 | PVD | Stainless/Superalloy | Finishing |
Verified Machinist Reviews
"Consistent tool life on 316SS. The HM chipbreaker is much better than the standard ones we used."
— Robert H., Germany 🇩🇪"YBM251 is my go-to for medium roughing. Very stable and handles heat well."
— James M., USA 🇺🇸"Buon rapporto qualità prezzo. Ottimo per inox."
— Luca F., Italy 🇮🇹"Great finish on high-feed turning. Fast shipping."
— Sato K., Japan 🇯🇵AI-Style Smart FAQ
Q: Can I use YBM251 for intermittent cutting?
A: Yes, YBM251 has a high-toughness substrate that handles light-interrupted cuts in stainless steel effectively.
Q: What is the benefit of the 0.8mm radius (308) over 0.4mm (304)?
A: The 0.8mm radius provides a stronger cutting edge and allows for higher feed rates, though it requires a more rigid machine setup.
Q: Is this insert compatible with dry machining?
A: While it can handle dry cuts due to its CVD coating, we recommend using coolant for stainless steel to maximize tool life and finish quality.
Need Help With ZCC.CT Inserts?
Looking for a ZCC.CT equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This ZCC.CT insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.