Significance and Use

The procedures for the determination of properties of single-filament hose reinforcing wire made from steel are considered satisfactory for acceptance testing of commercial shipments of this product because the procedures are the best available and have been used extensively in the trade.

In the case of a dispute arising from differences in reported test results when using these test methods for acceptance testing of commercial shipments, the purchaser and supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for investigation of bias. As a minimum, two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens then should be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared by using an appropriate statistical test and an acceptable probability level chosen by the two parties before testing is begun. If a bias is found, either its cause must be determined and corrected or the purchaser and supplier must agree to interpret future test results with consideration to the known bias.

1. Scope

1.1 These test methods cover testing of single filament steel wires that are used to reinforce hose products. By agreement, these test methods may be applied to similar filaments used for reinforcing other rubber products.

1.2 These test methods describe test procedures only and do not establish specifications or tolerances.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D76 Specification for Tensile Testing Machines for Textiles

D123 Terminology Relating to Textiles

D2969 Test Methods for Steel Tire Cords

D4848 Terminology Related to Force, Deformation and Related Properties of Textiles

D6477 Terminology Relating to Tire Cord, Bead Wire, Hose Reinforcing Wire, and Fabrics

Keywords

diameter; elongation; reverse bend; strength, breaking; strength, knot; torsion; wire, hose reinforcing; wrap; Breaking force; Diameter; Ductility; Elongation; Fatigue--tire cord materials/applications; Hose; Knot strength; Reverse bend; Steel wire; Torsion testing; Wrap; Yield strength and yield point;

ICS Code

ICS Number Code 77.140.65 (Steel wire, wir ropes and link chains)

DOI: 10.1520/D6320_D6320M-10

ASTM International is a member of CrossRef.

ASTM D6320 / D6320M