Editing Beryllium copper (section)

== Age-hardened alloy ==
Beryllium copper (C17200 & C17300) is an [[Precipitation hardening|age-hardening]] alloy that attains the highest strength of any copper base alloy. It may be age hardened after forming into springs, intricate forms, or complex shapes.  It is valued for its [[Elasticity (physics)|elasticity]], corrosion resistance, stability, conductivity, and low creep.

[[Tempering (metallurgy)|Tempered]] beryllium copper is C17200 and C17300, which have been age-hardened and cold-drawn. No further heat treatment is necessary beyond possible light stress relief. It is sufficiently ductile to wind on its diameter and can be formed into springs and most shapes. The tempered wire is most useful where the properties of beryllium copper are desired, but the age-hardening of finished parts is not practical.

C17510 and C17500 beryllium copper alloys are age-hardenable<!--Is this redundant?--> and provide good electrical conductivity, physical properties, and wear-resistance. They are used in springs and wire where electrical conduction or retention of properties at elevated temperatures is important.<!--Is this entire paragraph redundant?-->