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BS ISO 6934-4:2020

$102.76

Steel for the prestressing of concrete – Strand

Published By Publication Date Number of Pages
BSI 2020 16
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This document specifies requirements for steel strand which has been given a stress-relieving heat treatment according to the general requirements specified in ISO 6934-1. This document covers 10 grades of steel strand for use in prestressed concrete construction; each strand can contain either 2, 3, 7 or 19 individual wires. In case of any conflict between the requirements of this document and ISO 6934-1, the requirements of document prevail.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 1 Scope
2 Normative reference
3 Terms and definitions
4 Conditions of manufacture
4.1 Steel
4.2 Stress-relieving heat treatment
8 4.3 Compacted strand
4.4 Welds
4.4.1 2-wire and 3-wire strand
4.4.2 7-wire and 19-wire strand
4.5 Cracks
4.6 Finishing and appearance
5 Strand configuration
9 6 Properties
6.1 Dimensions, masses and strength of strand
6.2 Elongation and ductility
6.3 Relaxation
6.4 Fatigue
6.5 Stress corrosion
6.6 Deflected tensile test
11 7 Designation
8 Delivery conditions
8.1 General
8.2 Reel dimension
12 8.3 Curvature of strand
13 Annex A (informative) Considerations on stress corrosion
14 Annex B (informative) Deflected tensile strength
15 Bibliography
BS ISO 6934-4:2020
$102.76