GOST R 53772-2010 PDF

Full title and description

GOST R 53772-2010 — Reinforced steel low-relaxation 7-wire strands. Specifications. (Russian title: ГОСТ Р 53772-2010 — Канаты стальные арматурные семипроволочные стабилизированные. Технические условия).

Abstract

This national standard specifies technical requirements, dimensions, mechanical properties, testing methods and quality control procedures for low-relaxation 7-wire steel strands intended for use as prestressing reinforcement in prestressed concrete structures. It establishes acceptance criteria, sampling and marking/packaging rules to ensure suitability for prestressing applications.

General information

• Status: Active / in force.
• Publication date: Introduced 01 January 2011 (approved by order in 2010).
• Publisher: Federal Agency for Technical Regulation and Metrology (Rosstandart) — approved by order (Приказ) of the Federal Agency; implemented by national standards system of the Russian Federation.
• ICS / categories: Steel wire, wire ropes and related products — ICS / OKS classification 77.140.65 (steel wire, wire ropes).
• Edition / version: GOST R 53772-2010 (original issue, with later editorial updates noted).
• Number of pages: 23 pages (commonly reported in commercial and standards catalogues).

Scope

The standard applies to stabilized (low-relaxation) 7-wire steel strands used as prestressing reinforcement for prestressed and post-tensioned concrete structures. It covers strand construction, nominal sizes, material and mechanical property requirements, allowable relaxation characteristics, required factory and type tests, and rules for marking, packing and delivery.

Key topics and requirements

• Definitions and classification of 7-wire prestressing/stabilized strands (geometry and construction).
• Material requirements for constituent wires (steel grades and chemical/mechanical limits).
• Dimensional tolerances and nominal diameters for common strand sizes.
• Mechanical properties: minimum breaking force, tensile strength and elongation requirements.
• Low-relaxation performance limits (relaxation under sustained load over time) and related acceptance criteria.
• Factory and type testing procedures: tensile tests, relaxation tests, bending/flexure, and corrosion-resistance checks where applicable.
• Surface condition, coating or filling (if specified), marking, packing and documentation required for delivery.
• Sampling, inspection and conformity assessment procedures for production lots.
• Normative references and alignment with relevant ISO standards (notably ISO standards on prestressing strand test methods and strand specifications).

Typical use and users

Primary users are structural and bridge engineers, prestressing contractors, manufacturers of prestressing strand and wire rope, quality/control laboratories, procurement/specification authors, and certification bodies. The standard is used to specify prestressing strand for prestressed concrete members, anchors and tendons where low relaxation and predictable long-term behavior are required.

Related standards

Relevant international and national standards referenced or aligned with this document include ISO 6934‑4 (strands for prestressing), ISO 15630‑3 (test methods for prestressing steel), and other GOST/GOST‑R standards on wire and testing methods for reinforcing and prestressing steels. Users commonly compare or cross-reference ASTM, EN and national prestressing-strand specifications for equivalence.

Keywords

prestressing strand, 7-wire strand, low-relaxation, prestressed concrete, steel strand, strand specifications, testing methods, Rosstandart, GOST R 53772-2010.

FAQ

Q: What is this standard?

A: GOST R 53772-2010 is the Russian national standard that defines technical specifications, test and acceptance criteria for low-relaxation 7-wire steel strands used as prestressing reinforcement in concrete structures.

Q: What does it cover?

A: It covers strand construction, material and mechanical property requirements, dimensional tolerances, relaxation limits, testing procedures (including relaxation and tensile tests), sampling, marking and packing rules, and normative references.

Q: Who typically uses it?

A: Structural and bridge engineers, strand manufacturers, prestressing contractors, testing laboratories, standards committees and procurement/specification professionals use this standard when specifying or verifying prestressing strand for concrete applications.

Q: Is it current or superseded?

A: According to standard catalogues and national records, GOST R 53772-2010 is listed as active/in force; it was introduced 01 January 2011 and was approved by the Federal Agency order in 2010, with editorial updates noted in later years (example edit references show a 2018 editorial update). Users should check the national standards registry for any amendments or newer replacements before final specification.

Q: Is it part of a series?

A: The standard is part of the Russian GOST‑R system for metallurgical products and prestressing materials and is associated with related GOST/GOST‑R and ISO documents covering steel wire, wire ropes and prestressing steel test methods (for example ISO 6934‑4 and ISO 15630‑3).

Q: What are the key keywords?

A: Low-relaxation strand; 7-wire strand; prestressing reinforcement; tensile strength; relaxation test; strand dimensions; marking and packing; GOST R 53772‑2010.