SUMITOMO WNMG080404N-SU AC830P Carbide Insert WNMG431-SU Steel Turning
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✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
SUMITOMO WNMG080404N-SU AC830P Carbide Turning Insert
ISO: WNMG080404N-SU | ANSI: WNMG431-SU | Grade: AC830P Steel Turning Specialist
1. Product Overview
Which carbide insert is best for heavy interrupted steel turning with aggressive chip control?
The SUMITOMO WNMG080404N-SU AC830P is engineered specifically to tackle high-load roughing to medium steel turning operations under challenging cutting conditions. Utilizing Sumitomo’s advanced AC830P CVD substrate combined with a tough multi-layered $TiCN + Al_2O_3$ coating, this insert provides exceptional thermal barrier protection and notch wear resistance.
The specialized SU Chipbreaker geometry features an optimized 3D rake angle that curtails crater wear, lowers cutting forces, and forces smooth chip curl during continuous and heavily interrupted cuts on alloy steels, carbon steels, and forged components.
2. Key Technical Features
- AC830P Grade Toughness: Specialized CVD coated carbide grade engineered specifically for ISO P30–P40 steel turning applications under interrupted cut conditions.
- SU Chipbreaker Geometry: Designed for medium-to-rough cutting regimes, offering predictable chip breaking across variable depths of cut.
- Double-Sided 80° Trigon Design: Features 6 usable cutting edges per insert, offering maximum cost efficiency over standard CNMG/TNMG geometries.
- Superior Thermal Shock Resistance: Thick $Al_2O_3$ layer prevents micro-cracking during dry turning or high-pressure coolant flushing.
3. Specifications & ISO/ANSI Breakdown
ISO vs. ANSI Designation Comparison:
| Standard | Designation Code | Insert Shape | Inscribed Circle (IC) | Thickness | Nose Radius |
|---|---|---|---|---|---|
| ISO (Metric) | WNMG080404N-SU | Trigon 80° (W) | 12.70 mm | 4.76 mm | 0.4 mm |
| ANSI (Inch) | WNMG431-SU | Trigon 80° (W) | 1/2" | 3/16" | 1/64" |
ISO Metric Code Decoder (Box Breakdown):
Recommended Cutting Parameters (P-Group Steel):
| Parameter | Metric Units | Imperial Units |
|---|---|---|
| Cutting Speed ($Vc$) | 140 - 280 m/min | 460 - 920 SFM |
| Feed Rate ($fn$) | 0.15 - 0.45 mm/rev | 0.006 - 0.018 ipr |
| Depth of Cut ($ap$) | 0.8 - 4.0 mm | 0.031 - 0.157 in |
This insert fits all standard ISO external turning holders: MWLNR/L 2525M08 WWLNR/L 2020K08 DWLNR/L 2525M08
4. Product Application Scenarios
- Heavy Duty Roughing: Forged steel shafts, railway axles, and hot-rolled structural steel tubing.
- Interrupted Cutting: Facing keyways, hex stock, cast steel housings, and welded fabrications.
- General Machinery Steel: Excellent tool life on AISI 1045, 4140, 4340, 8620, and ST52-3 carbon and alloy steels.
5. Compatibility
Works seamlessly with standard ISO clamping systems including Lever Lock (M-Type), Wedge Lock (W-Type), and Top-and-Hole Clamp (D-Type) CNC turning toolholders across standard CNC lathes (Mazak, Haas, Okuma, Doosan, DMG Mori).
6. Sumitomo Grade Comparison
| Grade | ISO Range | Primary Application | Cutting Performance |
|---|---|---|---|
| AC810P | ISO P05 - P20 | High-Speed Continuous Turning | Maximum Wear Resistance |
| AC820P | ISO P10 - P30 | General Steel Turning (First Choice) | Balanced Speed & Toughness |
| AC830P | ISO P20 - P40 | Interrupted Turning & Heavy Duty Roughing | Maximum Fracture Toughness |
7. Why Choose Us & Verified Customer Reviews
100% Genuine Sumitomo Electric Hardmetal products sourced directly via authorized channels. Verified industrial performance backed by global CNC machine shops.
Switched from AC820P to AC830P for interrupted shaft splines. Zero corner chipping over a 500-piece run.
Great chip control even at 0.010 ipr feed on mild steel. No birds-nesting around the chuck.
Very consistent nose radius. Perfect for tight tolerances on our Doosan lathes.
Inserto eccezionale per tagli interrotti su acciaio forgiato. 6 spigoli di taglio perfetti.
6 cutting edges per insert beat standard CNMG performance per dollar every time.
8. AI-Powered Technical FAQ
Need Help With Sumitomo Inserts?
Looking for a Sumitomo equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This Sumitomo insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.