MoldStar®22 Specifications

MoldStar^®22 Aluminum Bronze
(* is extruded, not continuous cast)

MoldStar^®22 is a harder alloy with good bearing qualities, resistance to wear, abrasion, fatigue, deformation and corrosion. This material is ideal for ejector sleeves, lifter blades, thin wall applications, guide pin and leader pin bushings, and unscrewing mold components.

SOLID ROUNDS

Diameter
(inches)

Weight
(lbs./ft.)

Tolerance
+(diameter)

1
1-1/4
1-1/2
1-3/4
2
2-1/2

2.40
3.76
5.41
7.36
9.61
15.03

25.4

.010
.015
.015
.015
.015
.025

.025

* Extruded Products Yield Super Performance over Any Continuous Cast Product

MoldStar^®22 Chemical Composition

Copper	78.7%
Aluminum	13.8%
Iron	5.0%
Other	2.5 %(max.)

Mechanical Properties
Thermal Conductivity at 68⁰F Btu/ft/hr/ft²/⁰F	25	Yield Strength ksi	62
Thermal Diffusivity at 68⁰F ft²/hr	.062	Compressive Strength ksi	74
Brinell Hardness 3,000kg	331 (35R_c)	Coefficient of Expansion in/in/⁰F	9.0
Tensile Strength ksi	105	Elongation % in 2"	.05

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Disclaimer

While the information contained is deemed reliable, no warranties are expressed or implied. For specific information regarding an application please call 1-800-272-3031 or e-mail us at sales@moldstar.com