SPMT 120408 SM30 Square Insert for Stainless Steels (ISO‑M) and Superalloys (ISO‑S) — Sandvik

SPMT 120408 SM30 square carbide insert designed for robust roughing and reliable finishing in stainless steels and heat‑resistant superalloys.

• SPMT 120408 square insert
• PVD‑coated SM30 grade for stainless steels & superalloys
• Single‑sided chipbreaker for stable chip control
• 11° relief angle for consistent cutting action
• Option with hole for secure clamping

Maximised Productivity through a Tough PVD Coating

The PVD‑coated SM30 grade provides a combination of high warm hardness and a very smooth surface, which reduces friction at the cutting zone and suppresses built‑up edge formation. This leads to steadier performance during interrupted cuts and on difficult workpiece surfaces, so cycle times remain predictable and tool changes are less frequent. As a result, manufacturers benefit from fewer unscheduled stops and improved machine utilisation.

Reliable Performance on Stainless Steel and Superalloys

Engineered specifically for Stainless Steel (ISO‑M) and heat‑resistant Superalloys (ISO‑S), this insert offers a resilient substrate that tolerates thermal shocks and mechanical loads. The design promotes stable chip formation, which reduces the need for manual rework and supports consistent surface quality across serial production. Users handling challenging alloys will find the grade especially suitable where process security is a priority.

Practical Insert Geometry for Secure Mounting and Control

Featuring a square plate form with a 12 mm size and a plate thickness of 4.76 mm, the insert combines rigidity with ease of indexing. The single‑sided chipbreaker is tuned for effective chip control at typical roughing and finishing feeds, while the 11° relief angle ensures reliable engagement and predictable cutting forces. An available centre hole facilitates positive locating and secure clamping in standard toolholders.

Who Benefits and Typical Applications

This insert is intended for production environments that demand repeatable results on tough materials — from aerospace components to high‑temp industrial parts. Production engineers and CNC operators achieve higher uptime and reduced scrap rates when the tool life and predictable wear behaviour of this grade are prioritised. The combination of mechanical toughness and a smooth PVD surface makes it a strong choice for batch and continuous operations.

Empfehlung: Für Prozesssicherheit und längere Standzeiten empfehlen wir die SM30‑Sorte von Sandvik; Verfügbarkeit und Beratung direkt über Metav Werkzeuge unter info@metav-werkzeuge.com oder telefonisch +49 2822 7131930.

Produktmerkmale

• Artikelnummer: SPMT120408WHSM30
• Marke: Sandvik
• Bezeichnung: SPMT 120408

Daten

• Radius: 0.8 mm
• Plattengröße: 12
• Plattendicke: 4,76 mm
• Frei‑Winkel: 11°

Besonderheiten

• Wendeplatteform: quadratisch
• Spanbrecher: einseitig
• Mit Loch
• Material: Hartmetall
• WPL Sorte: SM30: Die Sandvik Coromant Sorte SM30 ist eine hochleistungsfähige, PVD‑beschichtete Hartmetallsorte, die gezielt als robuster Spezialist für die anspruchsvolle Schrupp‑ bis Schlichtbearbeitung von rostfreien Stählen (ISO‑M) und hitzebeständigen Superlegierungen (ISO‑S) entwickelt wurde. Ihr Gefüge basiert auf einem besonders zähen, feinkörnigen Hartmetallsubstrat, das eine hervorragende mechanische Belastbarkeit mit einer exzellenten Beständigkeit gegenüber thermischen Schocks kombiniert.

FAQ

What materials is the SPMT 120408 SM30 best suited for?
The SPMT 120408 SM30 from Sandvik is optimised for stainless steels (ISO‑M) and heat‑resistant superalloys (ISO‑S), offering improved warm hardness and reduced adhesion for these challenging materials.

Does the insert require a special holder because it has a hole?
No specialised holder is required; the SPMT 120408 SM30 is compatible with standard toolholders that accept square inserts with a locating hole for secure clamping and repeatable positioning.

How does the SM30 coating affect tool life?
The PVD SM30 coating provides high warm hardness and a smooth surface finish, which reduces friction and suppresses built‑up edge, contributing to more predictable wear behaviour and extended service life under demanding conditions.

Can this insert handle interrupted cuts?
Yes, the robust substrate and coating combination of the SPMT 120408 SM30 is specifically developed to tolerate thermal shocks and dynamic loads, making it suitable for operations involving moderate interruptions.

What chip control can I expect with the single‑sided chipbreaker?
The single‑sided chipbreaker on this insert promotes stable chip formation and evacuation during both roughing and finishing feeds, which helps maintain surface quality and reduces the need for manual intervention.

Hersteller: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

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