Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) Do not require heat treatment for any of its applications Are used for leaf and coiled springs Do not have good resilience properties Is tempered at 850C
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7% Mn (manganese), 0.5% C (carbon), and 2% Si (silicon). This composition is typical for steels used in specific applications due to the properties imparted by these elements. Show more…
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Describe the effects of adding Mn to steel and give a use for manganese-steel alloys.
Addition of high proportions of manganese makes steel useful in making rails of railroads, because manganese (I) gives harstncss to stecl. (II) helps rhe formarion of oxidics of iron. (JII) can remove oxygcn and sulphur. (IV) can show highesr oxidarion srare of $+7 .$ (a) $(\mathrm{I}),(\mathrm{II}),(\mathrm{III})$ (b) (I), (III) (c) (II), (IV) (d) $(\mathrm{T})$, (III), $(\mathrm{IV})$
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