ZCC.CT CCMT09T304-HM YBM251 Carbide Turning Inserts for Stainless Steel
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ZCC.CT CCMT09T304-HM YBM251: Premium Stainless Steel Machining
Product Overview
The ZCC.CT CCMT09T304-HM YBM251 is a high-performance carbide insert optimized for the challenging M-group (Stainless Steel). The YBM251 grade features a specialized CVD coating and a fine-grained substrate that offers exceptional resistance to thermal shock and notch wear. With a 0.4mm (0.016") nose radius and the HM chipbreaker, this insert excels at precision medium machining, ensuring stable chip control and preventing built-up edge (BUE) even in high-temperature cutting zones.
Key Features
- Optimized YBM251 Grade: Specifically designed for M15-M35 stainless steel range, balancing toughness and hardness.
- HM (Medium) Chipbreaker: Features a wide chip pocket for efficient chip evacuation during semi-finishing to medium operations.
- CVD Multi-Layer Coating: Enhances heat resistance and reduces friction between the chip and the rake face.
- Precision 0.4mm Radius: Ideal for reducing cutting pressure and improving surface finish on delicate components.
Technical Specifications
ISO Model Breakdown (CCMT 09T304-HM)
80° Diamond
7° Relief
Tolerance
Hole/Chipbreak
9.7mm Edge
3.97mm Thick
0.4mm Radius
Medium Cut
| Metric Model | ANSI/Imperial Equivalent |
|---|---|
| CCMT09T304-HM | CCMT 32.51-HM |
Cutting Speed & Feed Data
| Material (M Group) | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (304/316) | 150 - 260 m/min | 0.10 - 0.25 mm/rev |
| Duplex Stainless Steel | 100 - 180 m/min | 0.08 - 0.20 mm/rev |
Tool Holder Compatibility
Compatible with standard S-Type Tool Holders:
Designed for secure screw-down clamping in:
Applications
The CCMT 09T304-HM YBM251 is the industrial choice for Semi-Finishing to Medium Machining in:
ZCC.CT Grade Guide (Stainless Steel)
| Grade | Application | Cutting Condition |
|---|---|---|
| YBM151 | Finishing / High Speed | Stable Continuous Cutting |
| YBM251 | General Purpose | Balanced Toughness/Wear |
Customer Reviews
"Top Performance on 316L"
"Used these for medical grade 316L parts in Germany. The tool life is 20% longer than our previous Tier 1 supplier."
— Hans K., Germany
"Great Chip Breaking"
"The HM chipbreaker solved our stringy chip problem on the CNC lathe. Excellent for automated production."
— John D., USA
"Versatile and Stable"
"Consistency is key in our Italian job shop. These inserts provide predictable results part after part."
— Luca R., Italy
Frequently Asked Questions
Q: Is YBM251 suitable for interrupted cutting?
A: Yes, YBM251 is the general-purpose grade for stainless steel with high edge toughness, making it suitable for light interrupted cuts.
Q: What is the benefit of the 0.4mm (04) nose radius?
A: A 0.4mm radius reduces cutting forces and is perfect for finishing operations where dimensional accuracy and low vibration are critical.
Q: Does it work on Super Alloys?
A: While primarily for stainless steel, it can perform well on some heat-resistant alloys. For Inconel, we recommend the YBS series.
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.