What is ASTM A227?

ASTM A227 spring steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. It can have a very high tensile strength and has a fairly low ductility among wrought carbon or non-alloy steels.

What is ASTM A228?

ASTM A228 music wire is a carbon (non-alloy) steel formulated for primary forming into wrought products. Cited properties are appropriate for the cold worked (strain hardened) condition. ASTM A228 is the defining standard for this material. K08500 is the UNS number.

What elements are in spring steel?

With a medium to high carbon content, spring steels usually consist of 0.5 to 1.0 percent of carbon. Other alloys that are added to the mix are magnesium, chrome, vanadium, molybdenum, nickel, and silicon with silicon being a major ingredient in providing high yield strength.

Is Hard drawn the same as cold drawn?

Hard-drawn wire springs are affordable, flexible, and reliable carbon steel wire designed to withstand static loads and consistent stress. Also called cold-drawn spring steel, this wire type is manufactured to a specific diameter without additional tempering or processing.

What is spring music wire?

Music wire springs are springs made of a particularly strong type of steel known as music wire. Also known as piano wire, music wire consists of tempered, high-carbon spring steel. In the past, most pianos were made of iron-based wire. In the 1830s, music wire began to replace this iron-based wire.