ISO 6934-4:2020 PDF Download

ISO 6934-4:2020 standard specifies the requirements for steel strand used in prestressed concrete construction. The strand must undergo a stress-relieving heat treatment, following the general requirements outlined in ISO 6934-1. This standard covers 10 different grades of steel strand, which can be composed of either 2, 3, 7, or 19 individual wires.

The purpose of this standard is to ensure the quality and performance of steel strand used for prestressed concrete structures. It provides guidelines for the manufacturing process, including heat treatment, and defines the mechanical properties, such as tensile strength and elongation, that the steel strand must meet. Additionally, it includes requirements for dimensions, weight, and surface condition of the strand.

It's important to note that in case of any contradiction between the requirements of ISO 6934-4:2020 and ISO 6934-1, the requirements of ISO 6934-4:2020 take precedence. This ensures consistency and clarity in the specifications for steel strand used in prestressed concrete applications.