Music Wire Springs

Music wire is made from steel with a high carbon content, which serves to strengthen and harden the steel. Music wire is highly versatile; although it is not indestructible. Music wire springs are not recommended for service temperatures above 250°F (121°C).

Technical Specification Music Wire
Nominal Composition

C: 0.70 - 1.0

Mn: 0.20 - 0.60

Fe: 97.8 - 99

Si: 0.10 - 0.30


0.284 lb./in3

Modulus of Elasticity (E)

30.5 x 103 ksi

Modulus of Rigidity (G)

11.6 x 103 ksi

Min Size

0.004 in (0.100 mm)

Max Temp

120oC (250oF)


Used for High quality springs that are subject to high stresses or requiring good fatigue properties.