Mitsubishi SNMG120404-MA UE6020 Turning Insert | Steel Specialist
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SNMG120404-MA UE6020
Mitsubishi Materials | The Versatile Standard for Steel Turning
The Mitsubishi SNMG120404-MA UE6020 is a high-performance indexable turning insert designed for medium-duty steel machining. Featuring the legendary UE6020 CVD coating, this insert provides an exceptional balance of wear resistance and fracture toughness. Optimized for ISO P-class materials, it is the go-to choice for CNC operators seeking reliability across a wide range of cutting speeds and carbon steel grades.
Packaging: Genuine Mitsubishi Box of 10 Inserts
ISO Designation Decoded
Square 90°
0° Relief
M-Class Tol.
Double Sided
12.7mm Size
4.76mm Thick
0.4mm Radius
Chipbreaker
Technical Specifications
| Feature | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Name | SNMG120404-MA | SNMG 431-MA |
| Inscribed Circle | 12.7 mm | 0.500" (1/2") |
| Thickness | 4.76 mm | 0.187" (3/16") |
| Corner Radius | 0.4 mm | 0.016" (1/64") |
UE6020 Grade Technology
The UE6020 grade is a CVD coated carbide featuring a multi-layered TiCN + Al2O3 + TiN coating. It is specifically engineered to handle stable steel turning operations. This grade excels in resisting plastic deformation and crater wear at medium to high cutting speeds, ensuring long tool life in carbon, alloy, and tool steels.
MA Chipbreaker Design
The MA chipbreaker is Mitsubishi's versatile medium-cutting geometry. It is designed to provide smooth chip flow and reduced cutting resistance across a wide range of depths of cut. This helps in preventing chip entanglement, protecting the workpiece surface, and improving the efficiency of CNC turning on both low and high carbon steels.
Recommended Cutting Parameters
| Material Group | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Mild Steel ($<225$ HB) | 150 - 320 m/min | 0.15 - 0.35 mm/rev | 1.0 - 4.0 mm |
| Alloy Steel ($>225$ HB) | 100 - 250 m/min | 0.10 - 0.30 mm/rev | 1.0 - 3.5 mm |
TOOL HOLDER COMPATIBILITY
Compatible with standard PSSNR/L, DSBNR/L, or MSKNR/L turning tool holders.
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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.