K & S Precision Metals 510 Music Wire Spring Steel 0.218 in 36 in PK4

Spring steel wire for precision work

This K & S Precision Metals 510 music wire is made from grade 1085 carbon steel tempered to a tensile strength of 300,000 psi. It suits engineers, model makers and maintenance teams who need consistent spring properties for armature binding, control linkages or custom wire forms.

Material certificate not included

The bundle contains four 36-inch lengths totalling 2.5 lb without a material certificate. Users must rely on the ASTM A228 standard and the stated thickness tolerance of +/- .001 in for quality assurance instead of documented traceability.

Simple handling with basic tools

The round .218 in diameter wire cuts and bends with standard hand tools, yet the high tensile strength demands firm grip and controlled force to avoid kinks. Over-bending or nicking the surface during forming can create stress risers that lead to premature fatigue failure.