About Stellram
About Stellram
Stellram built its reputation as a metalworking tools manufacturer known for pioneering carbide grade and insert geometry innovations that became industry standards. The company developed Ruthenium carbide grades in 1984 for machining hard-to-machine materials and introduced octagonal milling inserts in 1995, advances that many of today's standard milling tools trace back to.
Operating for a period as ATI Stellram under Allegheny Technologies Inc., the brand built out a product platform including the 7792 and 7793 high-feed milling cutter systems, the 5230 Chevron Long Edge mill cutter system, and X-Grade carbide insert technology, with applications tailored to energy, aerospace, and transportation manufacturing. Kennametal later acquired ATI's tungsten materials business, bringing the full Stellram tooling line into Kennametal's broader portfolio.
ChatMRO lists Stellram milling inserts, high-feed cutters, and carbide grades sorted by workpiece material and cutting application so machinists can find compatible tooling quickly. Searching by insert geometry or material grade surfaces the matching Stellram part now supplied through Kennametal.
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Frequently asked questions
What is Stellram known for in metal cutting?
Stellram is known for pioneering carbide grade and insert geometry innovations, including Ruthenium carbide grades introduced in 1984 for hard-to-machine materials and octagonal milling inserts introduced in 1995. Many standard milling tools used across the industry today trace their design back to these Stellram developments.
Is Stellram still a separate company from Kennametal?
No, Stellram operated for a period as ATI Stellram under Allegheny Technologies Inc. before Kennametal acquired ATI's tungsten materials business, bringing the Stellram tooling platform into Kennametal's product line. Stellram-branded milling inserts and cutters are now available through Kennametal.
What are the Stellram 7792 and 7793 milling systems used for?
The 7792 and 7793 are high-feed milling cutter systems designed to maximize metal removal rates in roughing operations. They are part of Stellram's broader platform that also includes the 5230 Chevron Long Edge mill cutter system.
What industries does Stellram tooling serve?
Stellram's carbide milling tools are tailored to support energy, aerospace, and transportation manufacturing, among other demanding industrial sectors. These industries often require tooling capable of machining difficult alloys efficiently.
What is X-Grade carbide insert technology?
X-Grade is Stellram's carbide insert technology designed to improve tool life and performance across a range of milling applications. It represents part of the carbide grade development work that has defined the Stellram brand's engineering reputation.