Korloy SCMT09T308-HMP PC9030 0.8mm Radius Stainless Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy SCMT09T308-HMP PC9030 is a robust Square (7° Positive) Turning Insert, expertly engineered for high-efficiency Stainless Steel (M-Group) machining. Featuring a reinforced 0.8mm Corner Radius and Korloy's premier PC9030 PVD Coating, this insert excels in preventing built-up edge and thermal cracking. The -HMP (Highly Medium Performer) chipbreaker is optimized for semi-finishing to light-roughing, ensuring consistent chip control and an exceptional surface finish even under high-load conditions in materials like 304, 316, and duplex stainless steel.
Maximum Edge Security: The 0.8mm radius significantly increases the strength of the cutting tip compared to the 0.4mm version. This makes the SCMT09T308-HMP the preferred choice for interrupted cuts on stainless steel or when machining forged components with uneven surfaces.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | SCMT09T308-HMP |
| Corner Radius | 0.8 mm (High Feed/Toughness) |
| Thickness / IC | 3.97 mm / 9.525 mm |
| Grade | PC9030 (PVD Specialty for Stainless) |
Core Performance Benefits:
- Durable 0.8mm Edge: Designed to withstand the "hammering" effect of interrupted cuts or high-feed turning in tough alloys.
- Advanced PVD Coating: Smooth TiAlN coating layer reduces friction, lowering heat generation at the tool-workpiece interface.
- Effective Chip Evacuation: The HMP geometry curls and breaks tough stainless steel chips effortlessly, preventing "long-wire" tangling in deep bores.
- Enhanced Tool Life: High resistance to crater and flank wear, crucial for long-run stainless steel production.
Recommended Cutting Parameters (Stainless Steel):
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Austenitic (304/316) | 90 - 160 m/min | 0.12 - 0.30 mm/rev | 0.8 - 2.8 mm |
| Martensitic (400 Series) | 110 - 200 m/min | 0.15 - 0.35 mm/rev | 0.8 - 3.5 mm |
| Heat Resistant Alloys | 30 - 60 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.0 mm |
Compatible Tool Holders:
Precision fit for standard 9.525mm IC tool holders and boring bars:
- External Turning Holders: SSDC 1616 / 2020 / 2525 Series
- Internal Boring Bars: S16Q-SSDC09 / S20R-SSDC09 / S25S-SSDC09
Machinist Tip: The Advantage of 0.8mm Radius in Stainless
Why the SCMT09T308 is the high-productivity choice for stainless:
Increased MRR. The 0.8mm radius allows you to increase your feed rate ($fn$) significantly. In stainless steel, a higher feed helps the tool cut through the work-hardened layer rather than rubbing against it.
Anti-Built-Up Edge. PC9030 is much better at preventing "gumming" than general-purpose grades. If you see material welding to the edge, switching to PC9030 is the solution.
Pro Advice: For the SCMT09T308-HMP, always ensure your depth of cut ($ap$) is at least 0.8mm (equal to the radius). This ensures the radial cutting forces are balanced and the chipbreaker engages correctly to prevent vibration.
Packaging: 10 pieces per box.
Korloy SCMT09T308-HMP price, 0.8mm radius insert for 304 stainless steel, PC9030 vs PC5400 for stainless, SCMT 09T308 cutting parameters stainless steel, high feed boring bar inserts for stainless
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.