Alloy 190
Alloy 190 UNS Number C17200
Alloy 190 strips by Materion Brush Performance Alloys provides the highest strength of any mill hardened copper alloy, with electrical conductivity considerably greater than other high strength copper alloys. This alloy features good stress relaxation resistance, high fatigue strength, and has good flatness for photo-edged parts.
Markets and Applications for Alloy 190
Automotive terminals
Battery contacts
High reliability spring contacts for switches and relays
Alloy 190 Chemical Composition
Beryllium – 1.8-2.0%
Nickel – 0.2% min Nickel, cobalt and iron – 0.6%max
Copper – balance
Alloy 190 Physical Properties
Elastic Modulus - 19 x 106 psi (131 Gpa)
Density - 0.302 lb/in3 (8.36 g/cm3)
Poisson's Ratio - 0.3
Relative Magnetic Permeability - <1.0006
Electrical Conductivity – 17-28% IACS (9.9-16.3 MS/m)
Thermal Conductivity 70°F / 20°C - 60 BTU/ft•hr•°F (105 W/m•K)
Thermal Conductivity 200°F / 100°C - 75 BTU/ft•hr•°F (130 W/m•K)
Coefficient of Thermal Expansion - 9.7 ppm/°F (17.5 ppm/°C)
Specific Heat (Heat Capacity) 70°F / 20°C - 0.086 BTU/lb•°F (360 J/kg K)
Specific Heat (Heat Capacity) 200°F / 100°C - 0.097 BTU/lb•°F (406 J/kg K)
Melting Range - 1600 - 1800 °F (870 - 980 °C)
Alloy 190 Mechanical Properties
Mechanical properties may vary by product size, form and temper. Please see individual data sheets for values.
Available Forms, Sizes and Tolerances ofAlloy 190
Alloy 190 strip is available in widths ranging from 0.050 in to 16 in (1.27 mm to 452.7 mm) and in thicknesses ranging from 0.002 in to 0.040 in (0.05 mm to 1.0 mm). Thicker gauges may be produced at substantially reduced formability. See data sheet for sizes and tolerances.
Applicable Specifications & Standards for Alloy 190
Strip - ASTM B 194, B 888, EN 1652, EN 1654, EN 14436, JIS H 3130
Resources and Related links
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