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society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > iron alloys (6)
ferromanganese1864

Metallurgy. An alloy of iron and manganese, esp. one used in steel-making. Cf. manganeisen, n.

manganeisen1881

An alloy of iron containing manganese.

ferro-alloy1888

an alloy of iron with one or more other elements, typically a metal; esp. such an alloy used as an additive to modify the composition of steel.

silico-manganese1895

a ferro-alloy containing relatively high proportions of manganese and silicon, spec. one containing 65 to 70 per cent manganese and 12 to 25 per…

Mumetal1924

Any of a series of nickel-iron alloys containing approximately 75–78 per cent nickel, 4–6 per cent copper, and 1½–2 per cent chromium by weight…

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