Korloy MRMN500-M PC9030 5mm Full Radius R2.5 Stainless 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 PC9030 is a heavy-duty 5.0mm Full Radius (R2.5) Profiling Insert, precision-engineered as the definitive specialist for Stainless Steel (M) machining. Featuring the premium PC9030 PVD nano-coating, this insert is designed to handle the massive cutting forces and thermal stresses generated during large-scale stainless steel turning. The Full Radius (Round Nose) geometry and -M (Medium) chipbreaker provide exceptional edge security and chip control for deep R2.5 fillets and circular profiling.
Engineered for Tough Alloys: PC9030 features an ultra-dense PVD layer with high lubrication properties. In 5.0mm profiling, heat management is critical; PC9030 prevents the "sticky" stainless chips from welding to the edge, ensuring stable tool life and a superior surface finish.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MRMN500-M |
| Insert Shape | Full Radius (Round Nose) |
| Width / Radius | 5.0 mm / R2.5 |
| Grade | PC9030 (Premium Stainless PVD) |
Core Performance Benefits:
- Maximum Adhesion Resistance: Nano-PVD coating inhibits chemical bonding with gummy stainless materials, reducing edge wear.
- Heavy-Duty 5mm Body: The wide 5.0mm cross-section provides the rigidity needed for high radial depths of cut in large workpieces.
- Precise R2.5 Radius: Perfect for machining large-scale fillets and circular grooves found in heavy machinery and oil & gas components.
- Advanced Heat Dissipation: Maintains structural integrity at the cutting tip even when machining low-thermal-conductivity stainless alloys.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| 300 Series (304 / 316L) | 70 - 130 m/min | 0.10 - 0.22 mm/rev |
| 400 Series (420 / 431) | 80 - 140 m/min | 0.12 - 0.25 mm/rev |
| Duplex / Super Stainless | 35 - 70 m/min | 0.08 - 0.15 mm/rev |
Compatible Tool Holders:
Precision 5.0mm seat for heavy-duty holder systems:
- External Holders: MGEHR 2525-5 / 3232-5 / 4040-5
- Internal Holders: MGIVR 3125-5 / 4032-5
Machinist Tip: Scaling Up Stainless Profiling
When machining 5.0mm wide profiles in stainless steel, your tool choice is the difference between success and failure:
The Finishing Specialist. Its superior lubrication makes it the best choice for mass production where surface finish and dimensional stability of the R2.5 radius are paramount.
The Shock Absorber. Switch to PC5300 only if your 5mm cut involves heavy interruptions or if you are roughing forged stainless with an uneven skin.
Pro Advice: For MRMN500-M PC9030, pay close attention to the radius entry. When profiling into a corner, the contact area increases significantly—consider reducing the feed rate by 20% when the tool is fully engaged in an R2.5 fillet to prevent vibration.
Packaging: 10 pieces per box.
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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.