Korloy DCMT070204-HMP PC9030 Stainless Steel Turning Insert (10pcs)
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KORLOY DCMT070204-HMP PC9030
The Ultimate Solution for Stainless Steel & Exotic Alloy Turning
Model Identification Breakdown
The DCMT070204-HMP code follows the ISO standard to define every critical dimension and geometry:
Technical Specifications (ISO vs ANSI)
| Standard | Model Designation | Inscribed Circle (IC) | Thickness (S) |
|---|---|---|---|
| ISO (Metric) | DCMT070204-HMP | 6.35 mm | 2.38 mm |
| ANSI (Inch) | DCMT 2(1.5)1-HMP | 0.250" | 0.094" |
Grade & Geometry Technology
The PC9030 Grade is a high-performance PVD TiAlN coated carbide. It is specifically engineered to prevent the "built-up edge" (BUE) and chipping issues commonly found when machining gummy materials like 304/316 stainless steel.
HMP Chipbreaker:
Designed for medium cutting to semi-finishing. The HMP (Medium Positive) geometry features a dual-angle land that balances edge strength with sharp cutting action, ensuring excellent chip control even at varying depths of cut.
Recommended Machining Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless Steel (M20-M30) | 100 - 180 m/min | 0.06 - 0.17 mm/rev | 0.2 - 2.3 mm |
| Steel Alloys (P25-P35) | 120 - 220 m/min | 0.08 - 0.20 mm/rev | 0.5 - 2.5 mm |
Compatible with standard 55° Diamond Boring Bars and External Holders (e.g., SDUCR/L 07).
BROWSE COMPATIBLE TOOL HOLDERS →Frequently Asked Questions (Q&A)
Q: Can I use PC9030 for Titanium alloys?
A: Yes! The PC9030 PVD grade is excellent for heat-resistant superalloys (HRSA) like Titanium and Inconel due to its superior heat resistance and sharp edge preservation.
Q: Is this insert better for continuous or interrupted cuts?
A: While PC9030 is versatile, it excels in medium-speed continuous turning. If you are doing heavy interrupted cuts in stainless, consider the tougher PC9530 or PC5400 grades.
Customer Success Stories
Finally found an insert that doesn't melt on 316. The chip control on the HMP breaker is fantastic for semi-finishing.
Using these on my CNC lathe for alloy steel parts. Very consistent wear and excellent surface finish.
We use these on small Titanium components. The R0.4 radius holds its tolerance much longer than cheaper alternatives.
The HMP chipbreaker solves the long chip issues we had with standard inserts. Very happy with the productivity.
Authentic Korloy product. Performance matches the catalog specs exactly. Will order again.
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.