KORLOY SNMG120404-HS PC9030 Indexable Carbide Turning Inserts | SNMG431-HS (ANSI Equivalent) PVD Coated Inserts for Stainless Steel and Heat-Resistant Alloy Machining - 10pcs/box
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KORLOY SNMG120404-HS PC9030 Indexable Carbide Turning Inserts | SNMG431-HS (ANSI Equivalent) PVD Coated Inserts for Stainless Steel and Heat-Resistant Alloy Machining - 10pcs/box
High-Performance ISO-Standard 90° Square Negative Indexable Turning Cutters Featuring PC9030 PVD Coating and -HS High-Strength Chipbreaker for Precise Stainless Steel Finishing
1. Product Overview
"Which indexable turning insert is best suited for high-precision, fine-finish machining of austenitic and martensitic stainless steel components under strict dimensional tolerances?" CNC operators and manufacturing engineers consistently select the KORLOY SNMG120404-HS PC9030. This industrial-grade turning insert combines a tough, wear-resistant PC9030 PVD-coated carbide substrate with an optimized -HS chipbreaker geometry, delivering superior thermal crack resistance, secure chip control, and extended tool life across demanding stainless steel finishing operations. Built on a rigid 90° square negative outline with 8 indexable cutting edges and a fine 0.4mm corner radius, it guarantees exceptional surface finish quality and structural dependability.
2. Product Key Features
- PC9030 PVD Coated Grade: Formulated with a dedicated tough carbide substrate and advanced PVD multi-layer nano-coating designed to resist thermal shock, built-up edge (BUE), and flank wear in stainless steel machining.
- -HS Chipbreaker & 0.4mm Radius: Features a robust cutting edge geometry engineered for smooth feed control and lower cutting forces, paired with a precision 0.4mm corner radius for superior workpiece surface roughness values ($Ra$).
- Double-Sided Indexable Economy: Square negative configuration provides 8 total indexable cutting edges (4 per side), minimizing tooling costs per component.
- Standard Industrial Packaging: Delivered in secure factory containers containing 10 pieces for efficient workshop inventory control.
3. Technical Specifications & Model Breakdown
Review the comprehensive technical parameters, metric-to-imperial cross-references, and ISO nomenclature breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | SNMG120404-HS | SNMG431-HS |
| Inscribed Circle (IC) | 12.7 mm | 0.500 in (1/2") |
| Insert Thickness (S) | 4.76 mm | 0.1875 in (3/16") |
| Corner Radius (r) | 0.4 mm | 0.0157 in (~1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic Stainless Steel (e.g., 304, 316) | 140 - 240 | 0.08 - 0.25 |
| Martensitic & PH Stainless Steel Alloys | 110 - 200 | 0.10 - 0.30 |
Need matching MSSNR or PSBNR external turning toolholders for your SNMG 1204 inserts?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY SNMG120404-HS PC9030 insert excels across fine finishing and semi-finishing corrosion-resistant machining environments:
- Precision Instrument & Valve Components: Fine finishing stainless steel valve stems, precise shafts, and high-purity fluid fittings.
- Aerospace & Medical Implants: Machining heat-resistant alloy components and surgical-grade stainless steel parts requiring low surface roughness.
- General Precision Engineering: Tight-tolerance finishing passes on cylindrical workpieces with strict dimensional control.
5. Compatibility
Engineered for universal integration with standard ISO negative toolholding systems:
- Toolholders: Fully compatible with standard MSSNR/L, PSBNR/L, and CSBNR/L pin-and-clamp external turning toolholders designed for SNMG 1204 inserts.
- Machine Equipment: Optimized for high-speed CNC precision lathes, Swiss-type turning centers, and automated manufacturing cells.
6. Material Comparison & Workpiece Matrix
Examine grade application suitability across ISO workpiece material classifications.
| ISO Material Category | Target Materials | PC9030 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and precipitation-hardening stainless steels (e.g., 304, 316L, 17-4PH) | Optimal (Dedicated PVD Nano-Coated Grade Engineered for M05–M20 Precision Stainless Steel Finishing) |
| S (Superalloys) | Heat-resistant superalloys and high-temp nickel-based alloys | Excellent (High resistance to thermal deformation during fine alloy turning) |
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 downtime.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: How many inserts are included in each box?
A: Each standard factory box contains exactly 10 pieces of SNMG120404-HS PC9030 inserts.
Q: Why choose the PC9030 grade over PC5300 for stainless steel?
A: PC9030 is engineered specifically for fine finishing and semi-finishing under lighter depths of cut, offering tighter surface finish control and superior wear resistance at higher cutting speeds.
Q: Which toolholders are compatible with this SNMG 1204 insert?
A: It fits standard ISO negative turning toolholders designed for SNMG 1204 geometry, such as MSSNR or PSBNR external toolholder bars.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.