Korloy Indexable Turning & Boring Insert SCMT120408-HMP PC9030 | SCMT 432-HMP (Imperial Equivalent) Carbide Inserts for Stainless Steel & Alloy Machining - 10pcs Box
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Korloy Indexable Turning & Boring Insert SCMT120408-HMP PC9030 | SCMT 432-HMP (Imperial Equivalent) Carbide Inserts for Stainless Steel & Alloy Machining - 10pcs Box
High-Performance ISO-Standard Indexable Cutting Tools for Industrial CNC Stainless Steel & Alloy Turning Applications
1. Product Overview
"Which indexable turning insert provides superior edge strength, thermal shock resistance, and reliable chip flow for medium-to-heavy turning of austenitic stainless steel and high-temperature alloys?" CNC programmers and manufacturing engineers frequently select the Korloy SCMT120408-HMP PC9030. This industrial-grade indexable carbide insert features an advanced PVD nano-structured coated grade engineered to resist adhesive wear and notch breakdown, paired with a robust -HMP chipbreaker geometry and a larger 0.8mm corner radius that ensures high edge durability during demanding continuous and interrupted cuts.
2. Product Key Features
- PC9030 Grade Technology: A specialized PVD multi-layer coated grade optimized for stainless steel (ISO M) and heat-resistant superalloys, offering high toughness and exceptional thermal fatigue resistance.
- -HMP Geometry & 0.8mm Radius: General-purpose positive rake design with a reinforced 0.8mm corner radius designed to handle higher feeds, distribute cutting loads evenly, and resist edge chipping.
- ISO/ANSI Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee absolute indexing repeatability and secure toolholder pocket clamping.
- High Productivity Package: Supplied in industrial factory-sealed boxes of 10 pieces to minimize tool changeover downtime and streamline shop floor inventory.
3. Technical Specifications & Model Breakdown
Review the comprehensive parameter specifications, metric-to-imperial conversions, and ISO model code breakdown below for seamless integration into your CNC machining environment.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | SCMT120408-HMP | SCMT 432-HMP |
| Inscribed Circle (I.C.) | 12.7 mm | 1/2 inch (0.500" / 4 series) |
| Insert Thickness (04) | 4.76 mm | 3/16 inch (0.1875" / 3 series) |
| Corner Radius (08) | 0.8 mm | 1/32 inch (0.0312" / 2 series) |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed per Revolution (fn) mm/rev |
|---|---|---|
| Austenitic Stainless Steel (M10 - M30) | 110 - 210 | 0.15 - 0.35 |
| PH Stainless / Heat-Resistant Alloys (S10 - S20) | 45 - 100 | 0.12 - 0.30 |
Looking to pair these inserts with compatible external turning tool holders or boring bars?
Browse Compatible S-Series Turning Tool Holders4. Product Application Scenarios
The Korloy SCMT120408-HMP PC9030 insert performs exceptionally across demanding industrial sectors:
- Aerospace Component Manufacturing: Roughing and semi-finishing of heat-resistant nickel alloy rings, turbine shafts, and structural brackets.
- Petrochemical & Marine Engineering: Machining heavy-duty stainless steel valve bodies, pump shafts, and thick-walled pipeline flanges.
- Industrial Machinery: General turning and facing operations on corrosion-resistant steel components requiring high edge strength.
5. Compatibility
Engineered to integrate seamlessly into standard industrial tooling setups:
- Tool Holders: Fully compatible with ISO standard external turning tool holders (e.g., CSKPR, CSBCL, CSSPR series) and internal boring bars featuring 12.7mm square insert pockets.
- Machine Tools: Optimized for heavy-duty CNC lathes, CNC turning centers, and vertical turning lathes (VTL).
6. Material Comparison & Workpiece Matrix
Understanding grade characteristics ensures maximum metal removal rates and safeguards against premature edge breakdown.
| ISO Material Category | Target Materials | PC9030 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and precipitation-hardening stainless steel | Excellent (Primary Application - High Thermal Shock Resistance) |
| S (Superalloys) | Nickel-based alloys, titanium alloys, cobalt-based alloys | Very Good (Medium Turning & Roughing Passes) |
| P (Steel) | Alloy steel, carbon steel | Good / Secondary Application |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized manufacturers, guaranteeing verified batch authenticity and consistent industrial tool performance.
Fast Global Logistics
Maintained warehouse inventory and optimized international shipping lines ensure rapid dispatch to eliminate production line bottlenecks.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting.
8. Frequently Asked Questions (FAQ)
Q: What are the advantages of the 0.8mm corner radius on the SCMT120408-HMP?
A: The 0.8mm corner radius provides enhanced cutting edge strength compared to smaller 0.4mm radii, making it ideal for higher feed rates, deeper cuts of depth, and improved resistance against chipping during turning.
Q: How many inserts are included in each factory package?
A: Each standard industrial box contains 10 factory-sealed indexable carbide inserts, individually protected against shipping shock and environmental contamination.
Q: Why is the PC9030 grade recommended for stainless steel machining?
A: The PC9030 grade combines an advanced PVD nano-coating with a tough substrate designed to withstand the high temperatures and work-hardening characteristics inherent in stainless steel turning.
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.