Korloy SP400 PC9030 4mm Single-Ended Stainless Steel Parting Insert (10pcs)
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The Original Korloy SP400 PC9030 is a heavy-duty 4.0mm Single-Ended Parting and Grooving Insert, designed specifically for the most challenging Stainless Steel (M-Group) and Heat-Resistant Alloys (S-Group). Utilizing a specialized ultra-fine carbide substrate and a high-toughness PVD Nano-Coating, the PC9030 excels in maintaining a sharp cutting edge even under the high thermal loads generated during 4mm wide plunging operations.
Built for Tough Alloys: When parting large diameter stainless shafts, heat and chip evacuation are your biggest enemies. The SP400 PC9030 combines massive structural rigidity with an anti-adhesive coating to prevent built-up edge (BUE) and ensure process security.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| Model | SP400 |
| Cutting Width (W) | 4.0 mm (+/- 0.05mm) |
| Grade | PC9030 (Premium PVD for Stainless) |
| Clamping Design | Single-Ended (High Rigidity) |
Core Performance Benefits:
- Maximum Stability: The 4.0mm wide body is resistant to vibration, ensuring straight cuts in large workpieces.
- PVD Nano-Coating: Effectively resists chemical wear and heat, making it ideal for 304, 316, and work-hardening materials.
- Superior Surface Quality: The sharp micro-geometry reduces cutting resistance, preventing "smearing" on the end-face of stainless components.
- Robust Chip Curling: The SP-style chipbreaker curles the wide 4mm chips into tight "C" shapes for easier evacuation from deep grooves.
Recommended Cutting Parameters (For Stainless/Alloys):
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| 300 Series Stainless (304/316) | 80 - 140 m/min | 0.06 - 0.18 mm/rev |
| Duplex Stainless Steel | 60 - 100 m/min | 0.05 - 0.15 mm/rev |
| Titanium & Nickel Alloys | 25 - 60 m/min | 0.04 - 0.10 mm/rev |
Compatible Tool Holders:
Pair with high-rigidity 4.0mm systems to fully leverage the PC9030's potential:
- Heavy-Duty Blades: SPB 32-4 / SPB 26-4
- Integral Parting Shank: NCIH 25-4 / NCIH 32-4
- Mounting Blocks: SMBB 2532 / 3232 Series
Machinist Tip: Why choose SP400 PC9030?
Optimizing heavy-duty stainless parting:
Anti-Built-Up Edge. PVD coating is essential for 4mm wide stainless parting. It prevents the gummy material from "welding" to the insert, which is the leading cause of edge breakage in large shafts.
The Steel Powerhouses. Thicker CVD coatings are better for high-speed Carbon Steel but can be too blunt for gummy stainless, causing heat build-up and tool deflection.
Pro Advice: When parting off with SP400 in stainless, ensure your coolant is directed precisely at the gap. If you hear a "chirping" sound, increase the feed rate slightly to get under the work-hardened layer.
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.