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CNC Machining Materials

CNC machining material reference for aluminum, steel, stainless, titanium, brass, cast iron and hardened steel.

Material selection changes the practical cutting window. Use these dedicated pages to understand material behavior, then combine that information with toolmaker cutting data and the calculator.

Material reference library

Material

6061 Aluminum

A common aluminum alloy with good machinability. Temper, tool geometry, coating and chip evacuation still matter.

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Material

7075 Aluminum

A higher-strength aluminum alloy often used where strength-to-weight matters. It is not interchangeable with every aluminum cutting-data table.

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Material

Mild Steel

Low-carbon steels such as common 1018-type materials are widely machined. Actual chemistry and condition can change behavior.

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Material

Stainless Steel

Stainless is a family rather than one cutting condition. 303, 304 and 316 can behave differently.

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Material

Titanium

Titanium alloys require careful heat and load management, especially Ti-6Al-4V.

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Material

Brass

Brass covers free-machining and other copper-zinc alloys with different behavior.

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Material

Cast Iron

Gray and ductile cast irons are abrasive families with different machining characteristics.

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Material

Hardened Steel

Hardened steel requires hardness-specific cutting data and suitable tool material.

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How to use this library

Start with the exact alloy and condition. Then identify the tool material, coating, diameter, geometry and operation. The calculator converts the chosen source values into machine values; it does not decide which cutting-data band is correct for an unspecified material.