90-Silver 10-Tin-Oxide Electrical Contact Alloy
90-silver 10-tin-oxide is a precious metal alloy formulated for use in electrical contacts. It can have a moderately low tensile strength among the precious metal electrical contact alloys in the database.
The properties of 90-silver 10-tin-oxide include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 90-silver 10-tin-oxide to: precious metal electrical contact alloys (top), all alloys in the same category (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elongation at Break
7.0 to 35 %
Shear Strength
160 to 170 MPa 23 to 25 x 103 psi
Tensile Strength: Ultimate (UTS)
230 to 300 MPa 34 to 43 x 103 psi
Tensile Strength: Yield (Proof)
120 to 280 MPa 17 to 41 x 103 psi
Other Material Properties
Electrical Conductivity: Equal Volume
77 to 82 % IACS
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
20 to 68 MJ/m3
Followup Questions
Further Reading
ASTM B844: Standard Guide for Silver-Tin Oxide Contact Material