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1.1 This specification covers carbon steel flat wire in coils or cut lengths. Flat wire is classified as a cold-rolled section, rectangular in shape, 0.500 in. [12.7 mm] or less in width and under 0.250 in. [6.35 mm] in thickness.
1.2 Low-carbon steel flat wire is produced from steel compositions with a maximum carbon content of 0.25 % by cast or heat analysis.
1.3 Carbon spring steel flat wire is produced to a carbon range in which the specified or required maximum is over 0.25 % by cast or heat analysis.
1.3.1 Two types of carbon spring steel flat wire are produced:
126.96.36.199Untempered cold-rolled carbon spring steel flat wire, produced to several desirable combinations of properties and
188.8.131.52 Hardened and tempered carbon spring steel wire.
1.4 Definite application flat wire is a product developed for a specific application and may be specified only by size and descriptive name.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E45 Test Methods for Determining the Inclusion Content of Steel
E112 Test Methods for Determining Average Grain Size
E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness
Military StandardMIL-STD-129 Marking for Shipment and Storage
Federal StandardFed.Std.No.123 Marking for Shipment (Civil Agencies)
SAE StandardRecommendedPracticeS Methods of Measuring Decarburization
ICS Number Code 77.140.65 (Steel wire, wir ropes and link chains)
UNSPSC Code 31152200(Non electric iron and steel wire)