LaSalle provides patterns (red) and castings used for wiper dies

Examples of wiper dies as finished product

LaSalle has the capability and expertise to pour all brass and bronze alloys, we pour the following alloys frequently: 

Aluminum Bronze
CDA 954; CDA 955; CDA958 

Aluminum bronze was created by adding aluminum to copper to add strength to copper while maintaining the corrosion resistance of the base metal. It was found that aluminum bronzes were more resistant to direct chemical attack because aluminum oxide, plus copper oxide, was formed. The two oxides are complementary and often give the alloy superior corrosion resistance.

Applications: These alloys have good bearing qualities; resistance to wear, abrasion and fatigue, deformation, and as stated above, corrosion.

Uses: gears, slides, bushings, bearings, valve seats, hydraulic valve parts, plungers, pump rods, piston parts, liners, inserts, wiping blocks, wear strips and dies.

Manganese Bronze
CDA 862 (423, 430A); CDA 863 (424, 430B); CDA 864 (420); CDA 865 (421, 43)

Manganese Bronzes are considered members of the yellow brass family due to the major alloying element being zinc. The composition ranges from 5-40%, as a group they are considered relatively soft and low in strength. Because zinc has a comparatively mild alloying effect per unit amount added, higher strength is achieved by substituting third, fourth and fifth elements for some of the zinc. These elements are usually aluminum, iron and manganese.

Applications and uses: marine hardware and propellers for salt and fresh water, Machinery parts requiring strength and toughness, low-speed wear parts, heavy duty marine castings, bushings, gears, nuts, impellers, brackets, and holders.

Tin Bronze
CDA 905 (62), CDA 907 (65)

Applications and uses: Bearings, bushings, pump impellers, pistons rings, valve components, stem fittings, and gears.