KORLOY MGMN250-G PC9030 Indexable Grooving & Parting Inserts | PVD Coated Carbide Inserts for Stainless Steel & Alloy Steel CNC Lathes (10pcs/box) / MGMN250-G PC9030 0.098 inch Metric Grooving Tooling
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
✓ Global Shipping: Express 3–10 Days | Standard 5–15 Days
✓ Guaranteed Quality: 100% Compatibility | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
KORLOY MGMN250-G PC9030 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance PVD Coated Carbide Inserts with 2.5mm Width & -G Sharp Chipbreaker Geometry for CNC Lathe Stainless & Alloy Turning
1. Product Overview: Which insert is best for precision grooving, low cutting forces, and clean parting-off in stainless and alloy steels?
Which indexable grooving insert featuring a 2.5mm cutting width, an optimized -G sharp chipbreaker geometry, and advanced PVD metallurgical coatings offers exceptional fracture toughness, minimal built-up edge, and superior surface finish when machining stainless steels, heat-resistant superalloys, and alloy steels on CNC turning centers? Supported by empirical metalworking research and rigorous industrial testing data, the KORLOY MGMN250-G PC9030 (equivalent metric 2.5mm width with -G chipbreaker / imperial 0.098 inch width) is engineered specifically for stable, low-resistance cutting performance under demanding thermal loads. It utilizes the advanced PC9030 grade—a specialized nano-structured PVD coated carbide substrate designed for excellent wear resistance and anti-chipping performance in stainless and alloy materials. Combined with its designated -G geometry, it ensures sharp cutting action, low cutting forces, and extended tool life.
2. Product Core Advantages (Key Features)
- PC9030 Advanced PVD Grade: Features a high-toughness micro-grain carbide substrate combined with a smooth, multi-layer PVD coating designed to resist chemical wear and adhesive build-up when turning stainless steels.
- -G Sharp Chipbreaker Geometry: Designed with a positive rake angle and sharp cutting edge that significantly reduces cutting resistance and prevents burr formation on delicate workpieces.
- 2.5mm Cutting Width & Dual-Edge Economy: Provides a precise 2.5mm grooving profile with two indexable cutting edges for maximum operational economy and reduced tool change frequency.
- Secure Pocket Clamping: Engineered to fit securely into standard external grooving tool blocks, eliminating micro-motion and vibration during high-precision grooving passes.
3. Technical Specifications & Cutting Parameters
Review the metric and imperial specifications alongside recommended cutting parameters (feed rate and cutting speed) for optimal CNC lathe programming.
| Specification Parameter | Metric (ISO) | Imperial Equivalent |
|---|---|---|
| Insert Type / Series | MGMN Grooving & Parting | MGMN Grooving & Parting |
| Cutting Width (W) | 2.5 mm | 0.098 inch |
| Chipbreaker & Insert Geometry | -G (Sharp Chipbreaker) | -G Sharp Profile |
| Recommended Feed (f) - Grooving | 0.05 - 0.14 mm/rev | 0.0020 - 0.0055 in/rev |
| Recommended Feed (f) - Parting | 0.03 - 0.08 mm/rev | 0.0012 - 0.0031 in/rev |
| Cutting Speed (Vc) - Stainless & Alloy Steels | 90 - 180 m/min | 295 - 590 SFM |
Model Nomenclature Breakdown: MGMN250-G PC9030
Double-ended grooving
2.5mm cutting width
Sharp chipbreaker
PVD Coated Grade
Looking for rigid external grooving toolholders or modular blocks designed for secure MGMN 250 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for CNC turning operations requiring precise external grooving, face grooving, and clean parting-off in stainless steels (e.g., 304, 316), alloy steels, and high-temperature alloys.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard MGMN-compatible external grooving tool blocks and modular blades matching 2.5mm pocket widths.
- Machine Platforms: Designed for high-precision CNC turning centers, Swiss-type lathes, and multi-axis turning cells.
- Coolant Systems: Highly compatible with high-pressure coolant and flood coolant systems to control thermal buildup in stainless steel machining.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade PC9030 performs across different ISO material classifications ensures maximum productivity.
| ISO Material Group | Workpiece Description | KORLOY PC9030 Performance | Equivalent Industry Grades |
|---|---|---|---|
| M Group (Stainless Steel) | Austenitic & Duplex Stainless Steels (304, 316, 2205) | Nano-structured PVD coating provides exceptional resistance to adhesive wear and thermal cracking during stainless turning. | Sandvik GC1125 / Iscar IC908 |
| S Group (Superalloys) | Heat-Resistant Superalloys & Titanium Alloys (Inconel 718, Ti-6Al-4V) | Sharp cutting edge combined with thermal barrier coating reduces cutting forces and prevents work hardening. | Kennametal KCU25 / Seco TH1000 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, ensuring original metallurgical properties and consistent batch performance.
Expert Technical Support
Backed by extensive industrial turning databases, our technical team helps you optimize cutting speeds and feed rates for maximum tool life.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: What is the primary application for KORLOY PC9030 grade?
A: PC9030 is a high-performance PVD coated grade optimized for grooving, parting, and turning of stainless steels, heat-resistant superalloys, and alloy steels.
Q: How does the -G chipbreaker perform in stainless steel machining?
A: The -G sharp geometry reduces cutting resistance, minimizes work hardening in stainless steels, and provides excellent chip control at lower feed rates.
Q: How many inserts are included in each box?
A: Each factory-sealed box contains 10 indexable inserts.
Need Help With KORLOY Inserts?
Looking for a KORLOY 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 KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.