This standard specifies the dimension, shape, mass and tolerance of cold-drawn round, square and hexagonal steel wires.
This standard is applicable to cold-drawn round steel wires with a diameter of 0.05mm~20mm, cold-drawn square steel wires with an edge length of 0.50mm~10mm and cold-drawn hexagonal steel wires with a distance across flat of 1.60mm~10mm.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 321-2005 Preferred numbers - Series of preferred numbers
GB/T 1800.1-2009 Geometrical product specifications (GPS) - Limits and fits - Part 1: Bases of tolerances, deviations and fits
3 Sectional sketches and marked symbols
3.1 The sectional sketch for the round steel wire and the marked symbol in the sketch are given in Figure 1.
