Korloy Indexable Turning Insert DCMT070202-HMP PC9030 | DCMT 21.505-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel and Alloy Steel Finishing - 10pcs Box
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Korloy Indexable Turning Insert DCMT070202-HMP PC9030 | DCMT 21.505-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel & Alloy Steel Ultra-Precision Finishing - 10pcs Box
High-Performance ISO-Standard 55° Diamond Positive Indexable Turning Cutters for Industrial CNC Stainless Steel, Alloy Steel & Exotic Metal Ultra-Precision Finishing Operations
1. Product Overview
"Which indexable turning insert is best suited for high-precision CNC stainless steel and alloy steel finishing operations requiring exceptional wear resistance against work hardening, smooth chip evacuation, and tight dimensional tolerance control?" CNC programmers and machine shop supervisors frequently select the Korloy DCMT070202-HMP PC9030. This industrial-grade indexable carbide turning insert features an advanced high-performance PC9030 PVD-coated grade optimized for stainless steels and heat-resistant superalloys, combined with a 55° diamond positive geometry, a fine 0.2mm corner radius for detailed profiling and shallow finishing cuts, and a specialized -HMP chipbreaker engineered to provide excellent chip control at low-to-medium feeds, minimized cutting heat, and superior surface finish integrity.
2. Product Key Features
- PC9030 Advanced PVD Grade Technology: A tough, fine-grained carbide substrate combined with a smooth, wear-resistant PVD coating engineered specifically to resist notch wear, thermal cracking, and chemical adhesion in stainless steel turning.
- Optimized -HMP Chipbreaker Geometry: Positive rake angle design with a specialized ground breaker geometry engineered to prevent stringy chip wrapping and ensure consistent chip fragmentation on ductile materials.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure screw clamping and exact interchangeability across standard positive external turning tool holders and boring bars.
- Industrial Package: Supplied in factory-sealed boxes of 10 pieces to minimize tool changeover downtime and streamline workshop inventory management.
3. Technical Specifications & Model Breakdown
Examine the comprehensive parameter specifications, metric and imperial equivalents, and ISO coding breakdown below for precise CNC lathe and turning tool holder integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | DCMT070202-HMP | DCMT 21.505-HMP |
| Inscribed Circle / Size | 6.35 mm (07 series / 1/4" scale) | 1/4" nominal (2 series / 6.35mm equivalent scale) |
| Insert Thickness (02) | 2.38 mm (3/32" thickness class) | 0.0937 inch (1.5 series / 3/32" scale) |
| Corner Radius (02) | 0.2 mm | 0.0079 inch (~0.5 radius designation scale / 1/128") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic & Martensitic Stainless Steels (M10 - M30) | 120 - 240 | 0.05 - 0.15 |
| Heat-Resistant Superalloys & Titanium (S10 - S20) | 40 - 90 | 0.04 - 0.12 |
Need matching SDJCR/L external turning tool holders or SDUCR/L boring bars for your 0702 DCMT inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy DCMT070202-HMP PC9030 insert performs exceptionally across medical, aerospace, and food processing industries:
- Medical Surgical Implements: Fine contouring and finish turning on stainless steel surgical tools and bone screw components.
- Aerospace Valve Housings: Precision internal and external finishing passes on heat-resistant superalloy aerospace fittings.
- Food & Chemical Processing Shafts: Clean finish turning on corrosion-resistant 304 and 316 stainless steel drive shafts.
5. Compatibility
Designed to integrate seamlessly into standard positive industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with SDJCR/L, SDUCR/L, and SDNCN positive external tool holders and internal boring bars configured for DCMT 0702 series inserts.
- CNC Machinery: Optimized for Swiss-type lathes, precision CNC turning centers, and multi-axis lathe setups.
6. Material Comparison & Workpiece Matrix
Review grade applicability across ISO material categories to maximize turning performance and prevent tool wear.
| ISO Material Category | Target Materials | PC9030 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and precipitation-hardening stainless steels | Excellent (Dedicated PVD Grade for Stainless Steel Finishing) |
| S (Superalloys) | Nickel-based alloys, cobalt-based alloys, titanium alloys | Good (High thermal stability against heat-resistant metals) |
| P (Steel) | Carbon steels, alloy steels | Moderate (Applicable for precision alloy steel finishing) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch authenticity and consistent cutting performance.
Fast Global Logistics
Maintained warehouse stock and streamlined international shipping networks ensure rapid dispatch to eliminate production delays.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: Why is the 0.2mm corner radius (-02) optimal for stainless steel finishing passes?
A: The 0.2mm corner radius allows for clean shoulder profiling, precise corner detailing, and reduced cutting pressure, which helps prevent work hardening in austenitic stainless steels.
Q: How many inserts are included in each factory package?
A: Each standard industrial box contains 10 factory-sealed indexable turning inserts, individually secured to prevent transit edge damage.
Q: How does PC9030 grade combat built-up edge (BUE) when machining stainless steel?
A: PC9030 utilizes a smooth PVD coating texture that prevents gummy stainless steel chips from welding to the rake face during low-speed finishing cuts.
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.