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Sarkari MCQs Government Exam Question Bank
Question no. 6611

Satellite material is classified as a _________________ substance?

Select your answer for: Satellite material is classified as a _________________ substance?
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Answer: D. Non-ferrous cast alloy cutting tool

Explanation

Stellite is a range of cobalt-chromium-tungsten alloys classified specifically as non-ferrous cast alloy cutting tools. The alloy composition excludes iron as the primary base metal making it a non-ferrous material category. Its high hardness at elevated temperatures makes it an exceptional choice for demanding metal cutting tools. Non-ferrous cast alloys do not contain iron as their principal constituent element in the metallic matrix. Cobalt-based superalloys exhibit remarkable wear resistance and retain strength at very high working temperatures. Stellite materials are traditionally shaped by casting followed by precision grinding to final tool dimensions.

Machining operations involving hard materials utilize stellite cutting tools to maintain high production cutting speeds. Valve seats in internal combustion engines often use stellite facings to resist high temperature gas erosion. Surgical implants also utilize cobalt-chromium alloys due to their exceptional biocompatibility and corrosion resistance. Ferrous substances contain iron as their primary base metal unlike cobalt-dominant stellite alloy compositions. Ceramic materials are inorganic and non-metallic whereas stellite is fundamentally a metallic alloy composition. Cemented carbide tools consist of hard carbide particles bound by cobalt rather than being cast non-ferrous alloys.

Subject
Engineering
Category
Chemical Engineering
Topic
—
Difficulty
medium

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