Wear Resisting

Type W (ALMANITE®) are a series of austenitic-martensitic white irons characterized by high hardness and relatively good impact strength.

Type W1 has a pearlitic matrix.

Type W2 has a martensitic matrix.

Type W4  is highly alloyed to provide an austenitic 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 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.

PROPERTYTYPE   W1
as-cast
TYPE   W2
as-cast
TYPE   W4
heat-treated
TYPE
WS
TYPE
WSH
Tensile Strength-psi50/60,00050/60,00060/80,00060/80,000> 100,000
Yield Strength-psi50/65,00075,000
Modulus of Elasticity-psi26,000,00026,000,00024,000,00024,000,000
Elongation %2-44-10
Brinell Hardness (Nominal)500/600500-600400/700400/525350/500
Izod Impact 1.2" bar
unnotched ft. lb.
30-5040-6040-70up to 180up to 120