Korloy MRMN500-M NC3030 5mm Full Radius R2.5 Heavy Steel Profiling Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MRMN500-M NC3030 is a heavy-duty 5.0mm Full Radius (R2.5) Profiling Insert specifically engineered for high-performance Steel (P) machining under high-load conditions. Featuring the specialized NC3030 CVD coating, this insert provides exceptional edge toughness and resistance to thermal shock, making it the premier choice for interrupted cuts and surfaces with heavy scale. The 5mm Full Radius (Round Nose) geometry allows for aggressive 3D contouring and deep rounded grooving on large-scale industrial components.
Built for the Tough Stuff: When machining 5.0mm wide profiles, the cutting forces are immense. NC3030's tough substrate is designed to absorb these forces and resist chipping, especially on workpieces with keyways, cross-holes, or uneven hardness.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MRMN500-M |
| Insert Shape | Full Radius (Round Nose) |
| Width / Radius | 5.0 mm / R2.5 |
| Grade | NC3030 (High-Toughness Steel CVD) |
Core Performance Benefits:
- Maximum Rigidness: The massive 5.0mm body handles extreme radial and lateral pressures during heavy-duty profiling.
- CVD Shock Resistance: NC3030 technology prevents premature edge failure during interrupted cuts on scaly forged steels.
- Precise R2.5 Geometry: Perfect for machining large circular grooves and transition fillets in heavy machinery and oil & gas parts.
- Optimized -M Chipbreaker: Effectively manages large chip volumes produced by 5mm wide cuts, ensuring operator safety and machine uptime.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (1045 / S45C) | 100 - 180 m/min | 0.12 - 0.28 mm/rev |
| Alloy Steel (4140 / 42CrMo) | 80 - 150 m/min | 0.10 - 0.22 mm/rev |
| Heavy Casting/Forged Steel | 60 - 110 m/min | 0.08 - 0.18 mm/rev |
Compatible Tool Holders:
Precision 5.0mm seat fit for heavy-duty holder systems:
- External Holders: MGEHR 2525-5 / 3232-5 / 4040-5
- Internal Holders: MGIVR 3125-5 / 4032-5
Machinist Tip: The Power of 5.0mm NC3030
At 5.0mm width, the difference between NC3020 and NC3030 is substantial for tool life:
The "Heavy Industry" Standard. Best for general steel work where the machine setup might not be perfectly rigid. Its toughness prevents chipping during the high-vibration environment of 5mm profiling.
The High-Speed Specialist. Best for continuous, clean cuts in mass production. More wear-resistant but risky if you encounter interruptions or sudden load changes.
Pro Advice: For MRMN500-M NC3030, ensuring high-pressure coolant is directed at the R2.5 tip is vital. This helps flush the large 5mm chips and prevents heat re-cutting, which is the main cause of premature wear in heavy profiling.
Packaging: 10 pieces per box.
Korloy MRMN500-M price, 5mm full radius insert for heavy steel turning, R2.5 round nose profiling insert, NC3030 CVD insert for tough carbon steel, MRMN500-M cutting speed and feed
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.