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Meehanite Wear and Abrasion Resisting Types (Almanite®)

Type W is a series of austenitic-martensitic white irons characterized by high hardness and relatively good impact strength. Type W has a pearlitic matrix; Type W2 has a martensitic matrix; Type W4 is highly alloyed to provide an austentic matrix in the as-cast condition which may be further modified to give a martensitic matrix by heat treatment or by freezing.Type WS is a hard wearing martensitic iron with exceptional impact strength...not readily machinable... work hardens in service to high hardness values. Type WS is recommended for crusher jaws, impact hammers, pulverizers, etc.Type WSH is an austenitic nodular iron possessing superior tensile strength, toughness and ability to work harden under conditions of severe pounding impact. It is extremely difficult to machine. Recommended for crusher liners, hammers, grinding balls, etc.

PROPERTY TYPE
W1
TYPE
W2
TYPE
W4
TYPE
WS
TYPE
WSH
Tensile Strength-psi 50/60,000 50/60,000 60/80,000 60/80,000 100,000
Yield Strength-psi       50/65,000 75,000
Modulus of Elasticity-psi 26,000,000 26,000,000   24,000,000 24,000,000
Elongation %       2-4 4-10
Brinell Hardness (Nominal) 500/600 500-600 400/700 400/525 350/500
Izod Impact 1.2" bar
unnotched ft. lb.
30-50 40-60 40-70 up to 180 up to 120

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