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What is the function of carbon in stainless steel?

(a) Improves resistance to corrosion

(b) Improves ductility

(c) Reduces sensitization

(d) Improves halogen resistance

I got this question during an internship interview.

My doubt is from Types of Bioreactors in portion Recovery and Purification of Fermentation Products, Effluent Treatment, Bioreactor Design Considerations of Fermentation Technology

1 Answer

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The correct choice is (c) Reduces sensitization

To explain: The carbon reduces the sensitization when present in stainless steel. It is a maximum of 0.03 % which prevents the precipitation of carbon during welding.

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