Alloy Steel / Adamite Rolls

Extra carbon and alloy, for the toughest stands.

Hardness: 40-55
Shop colour code: Adamite

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These rolls are specially alloyed with nickel, chromium or molybdenum. The extra carbon and special alloys give them extra wear resistance and strength.

They are statically cast, then undergo a special high-temperature heat treatment: a double annealing, followed by a tempering cycle. This produces a microstructure of good pearlitic matrix with spheroidised, broken carbide.

Double annealing and tempering produce a tough pearlitic matrix with spheroidised carbide.

Chemical composition

Hardness	C	Mn	Si	Ni	Cr	Mo
40-45	1.20-1.40	0.60-0.90	0.30-0.80	0.60 max	1.00-1.30	0.25-0.40
45-50	1.60-1.90	0.60-0.90	0.30-0.60	0.90-1.20	1.10-1.40	0.25-0.40
50-55	1.60-2.00	0.60-0.90	0.40-0.60	1.10-1.50	1.10-1.40	0.60 max