AMPCO METAL Inc.

United States

• Iron(Fe)
• Aluminium(Al)

AMPCO® 8 extruded has a high tensile strength and a good yield along with an inherent toughness and ductility not usually found in a single alpha phase aluminium bronze. During the extrusion process the metal is hot worked resulting in a compact grain structure free of inclusions or other defects and improved physical properties. Application AMPCO® 8 is used whenever good resistance to corrosion, erosion, abrasion and cavitation-pitting is essential. AMPCO® 8 is ideally suited for pipes, tubes, joints and other pieces used in the process, marine or other similar industries. The extreme hardness of this alloy makes it an ideal bolting material. AMPCO® 8 has excellent bearing characteristics. It is used for bushings, bearings, wear strips and in similar applications where hardness and ductility are essential for uninterrupted operations.

• Manganese(Mn)
• Silicon(Si)

These are wrought zinc-manganese-silicon-lead-copper alloys which are widely specified for a variety of bearing andor corrosive applications: bushings, gears, cams, nuts and bolts, connector rods, idler shafts and other shafting, worm gears, feed fingers, lead nut screws, etc. Both alloys have excellent capacity for hot forming, with hot forgeability ratings of 100. AMPCO® 674 exhibits a machinability rating of 25%, while AMPCO® 673 has a considerably higher rating of 80%. The significant difference in the two materials is in the higher lead content of AMPCO® 673 which increases that alloy’s machinability but decreases its tensile and yield values.

AMPCOLOY® 712 is an alloy valued primarily for its excellent mechanical and corrosion resistance. It can be used in applications featuring specific pressures up to 60 Mpa and linear speeds up to 6 msec, including: spindle screw, pressure screw-nut, gear wheel, machine tool parts.