Overview
C90700 is a copper-tin alloy that is up to 88.8% copper. This copper-tin alloy popularity as a gear material is earned because of its high tensile, yield, and compression strength, as well as good wear resistance. Many gear materials are variations of this alloy with modest changes in nickel and/or tin content.
Typical Uses
Bearings and gears.
MetalTek Grade
MTEK 65
Similar Specifications
Cast UNS: C90700
Cast Grade: C90700
Cast ASTM: B427, B505
Military/AMS: QQ-C-390B
Other Specifications: SAE 65
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: n/a
Chromium: n/a
Manganese: n/a
Iron: n/a
Copper: 88.8
Nickel: n/a
Lead: n/a
Tin: 11
Silicon: n/a
Zinc: n/a
Other: P 0.2