Mitsubishi SEMT13T3AGSN-JM MC5020 Milling Insert | Genuine MMC
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SEMT13T3AGSN-JM MC5020
Mitsubishi Materials | Cast Iron Milling Excellence
The Mitsubishi SEMT13T3AGSN-JM MC5020 is a specialized indexable milling insert engineered for high-performance machining of cast iron. Utilizing the MC5020 CVD coating technology, this insert offers a "black super-smooth coating" that prevents welding and built-up edges. The JM chipbreaker is designed for medium cutting, balancing sharpness with edge strength to deliver superior surface finish and long-term stability in CNC machining of gray and ductile iron.
Packaging: Original Mitsubishi Box of 10 Inserts
ISO Designation Decoded
Square 90°
20° Relief
M-Class Tol.
With Hole
13.4mm Size
3.97mm Thick
Lead/Flat
Medium Cut
Technical Specifications
| Feature | Metric Designation | Inch (ANSI) Designation |
|---|---|---|
| Model Name | SEMT13T3AGSN-JM | SEMT 43 AGSN JM |
| Inscribed Circle ($IC$) | 13.4 mm | 0.5276" |
| Thickness ($S$) | 3.97 mm | 0.156" |
| Corner Radius ($RE$) | 1.5 mm | 0.059" |
MC5020 Grade Technology
The MC5020 grade is Mitsubishi's premier CVD coated carbide for cast iron milling. It features a fibrous TiCN and Al2O3 layer that provides exceptional thermal crack resistance and wear resistance. The black super-smooth coating minimizes the friction coefficient, effectively preventing weld chipping during high-speed dry machining.
JM Chipbreaker Profile
The JM Chipbreaker is optimized for general/medium cutting. It utilizes a curved cutting edge design that maintains sharpness while reinforcing the edge against fracture. This geometry is ideal for face milling applications where consistent chip evacuation and high-load stability are required to maintain dimensional accuracy.
Recommended Cutting Parameters
Optimized for Gray and Ductile Cast Iron (MC5020)
| Material Group | Cutting Speed ($v_c$) | Feed per Tooth ($f_z$) | Metric ($v_c$) |
|---|---|---|---|
| Gray Cast Iron (FC) | 492 - 820 SFM | 0.003 - 0.011 in/t | 150 - 250 m/min |
| Ductile Iron (FCD) | 328 - 656 SFM | 0.003 - 0.009 in/t | 100 - 200 m/min |
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.