Korloy MRMN200-M PC9030 2mm Full Radius R1.0 Stainless Steel Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MRMN200-M PC9030 is a premium 2.0mm Full Radius (R1.0) Profiling Insert, precision-engineered as the ultimate specialist for Stainless Steel (M) machining. Featuring the industry-leading PC9030 PVD coating, this insert is specifically designed to overcome the challenges of gummy materials like 304 and 316 stainless steel. The Full Radius (Round Nose) geometry and -M (Medium) chipbreaker provide a sharp cutting action that reduces heat and prevents work hardening during intricate 3D profiling.
The Stainless Steel Master: PC9030 features a specialized PVD layer with an ultra-smooth surface and high thermal stability. This prevents the "sticky" chips of stainless steel from welding to the cutting edge, ensuring a superior surface finish and significantly longer tool life.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MRMN200-M |
| Insert Shape | Full Radius (Round Nose) |
| Width / Radius | 2.0 mm / R1.0 |
| Grade | PC9030 (Premium Stainless PVD) |
Core Performance Benefits:
- Anti-Built-Up Edge (BUE): The ultra-smooth PVD coating prevents material welding, a common failure in stainless steel grooving.
- Sharp Edge Geometry: Optimized to cut through work-hardening layers rather than rubbing, extending the life of the insert.
- R1.0 Precision Profiling: Delivers flawless 2mm circular grooves and smooth fillets on medical, food-grade, and marine-grade components.
- High Thermal Resistance: Effectively manages the concentrated heat generated when machining low-thermal-conductivity stainless alloys.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Austenitic (304 / 316) | 80 - 150 m/min | 0.04 - 0.10 mm/rev |
| Martensitic (420 / 440) | 90 - 160 m/min | 0.05 - 0.12 mm/rev |
| Duplex Stainless Steel | 50 - 90 m/min | 0.03 - 0.08 mm/rev |
Compatible Tool Holders:
Precision 2.0mm seat fit for standard MGEHR/MGIVR systems:
- External Holders: MGEHR 1212-2 / 1616-2 / 2020-2
- Internal Holders: MGIVR 2016-2 / 2520-2
Machinist Tip: PC9030 vs. PC5300
Choosing the right PVD grade for your MRMN200-M insert:
The Stainless Specialist. Optimized specifically for M-class materials. It has better chemical stability and lubrication, making it superior for 300-series stainless steel where adhesion is the main problem.
The Generalist. A great all-rounder for Steel, Stainless, and Heat-Resistant alloys. Choose PC5300 if you need more toughness for heavy interrupted cuts, but PC9030 will almost always last longer in clean stainless turning.
Pro Advice: When using MRMN200-M PC9030 on 304 Stainless, use high-pressure coolant directed exactly at the cutting edge. This helps the -M chipbreaker flush chips away before they can scratch the finished radius.
Packaging: 10 pieces per box.
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.