GOST 4728-2010 PDF

Full title and description

GOST 4728-2010 — Заготовки осевые для железнодорожного подвижного состава. Технические условия (English title: Axle billets for railway rolling stock. Specifications). The standard specifies technical requirements, acceptance rules and inspection methods for square and round carbon-steel billets intended for hot deformation into axles for wheelsets of locomotives, multiple-units, railway cars and special rolling stock.

Abstract

This interstate (GOST) standard establishes dimensional series, chemical and mechanical property limits, surface and macroscopic quality requirements, marking, sampling and testing procedures, and rules for transportation and storage of axle billets produced from carbon steel for railway rolling stock. It replaces the earlier GOST 4728-96 and was developed to align billet requirements with safety and technical regulations for railway axle production.

General information

• Status: Active (implemented as an interstate standard and adopted for application in participating states).
• Publication date: Registered 25 November 2010; implemented as national standard in the Russian Federation from 1 September 2011 (order dated 1 March 2011).
• Publisher: Interstate Council for Standardization, Metrology and Certification (Межгосударственный совет); published editions distributed through standard publishers (e.g., Стандартинформ).
• ICS / categories: Railway rolling stock — ICS code 45.060 (group V41 / OKC 45.060).
• Edition / version: GOST 4728-2010 (2010 edition), replaces GOST 4728-96.
• Number of pages: Typical published text: 11–12 pages (electronic/printed editions list 12 pages).

Scope

The standard applies to square and round cross-section carbon-steel billets intended for hot deformation into axle blanks for wheelsets of locomotives, diesel and electric trains, freight and passenger cars, metro rolling stock and other specialized railway vehicles. It covers billet raw-material requirements, permissible defects and machining allowances, mechanical and impact properties in normalized state, sampling and testing methods, marking, packaging, transport and storage provisions.

Key topics and requirements

• Designation of billet shapes and nominal dimensions for square and round sections.
• Chemical composition limits for the steel grade(s) used (e.g., OS grade ranges for C, Mn, Si, S, P and minor elements) and requirements for vacuum treatment or degassing when applicable.
• Mechanical property limits in the normalized condition (tensile strength, elongation, and minimum impact energy values at specified temperatures).
• Surface and macroscopic quality criteria: permissible and non‑permissible surface defects, rules for defect removal and limits on depth/number of repairs.
• Sampling, acceptance and control procedures (including destructive and non‑destructive tests, macrostructure evaluation and chemical analysis methods).
• Marking, packaging, transportation and storage requirements and manufacturer guarantees.

Typical use and users

Manufacturers of axle billets and steel foundries, railway axle producers and wheelset manufacturers, quality and inspection laboratories, procurement and standards compliance teams at railway operators and infrastructure owners, and organizations responsible for production control of components used in rolling stock. The standard is used during supplier specification, incoming inspection, production planning and regulatory compliance.

Related standards

This standard references and is used alongside other GOST and interstate standards governing materials testing and railway components—examples include standards for axle technical conditions, mechanical testing (tension, impact), macrostructure assessment and methods of chemical analysis. GOST 4728-2010 replaces GOST 4728-96; normative references listed in the standard include standards such as ГОСТ 15.309, ГОСТ 9454, ГОСТ 10243, ГОСТ 33200 and a range of material-analysis and testing standards.

Keywords

axle billets; axle blanks; railway rolling stock; hot-deformed billets; carbon steel billets; technical conditions; material specifications; GOST 4728-2010; axle manufacture; wheelset axles.

FAQ

Q: What is this standard?

A: GOST 4728-2010 is an interstate standard specifying technical conditions (requirements, testing and acceptance rules) for axle billets made from carbon steel that are intended for hot deformation into axles for railway rolling stock.

Q: What does it cover?

A: It covers billet shapes and sizes, chemical and mechanical property limits, requirements for steelmaking (including vacuuming/degassing where required), surface and macroscopic quality criteria, sampling and testing methods, marking, packaging, transport and storage, and manufacturer guarantees.

Q: Who typically uses it?

A: Steel mills and foundries producing axle billets, axle and wheelset manufacturers, quality control and testing laboratories, railway infrastructure owners and procurement/specification teams who require compliant billets for axle production.

Q: Is it current or superseded?

A: As of the cited records the 2010 edition is active; it replaced GOST 4728-96 and was registered 25 November 2010 and introduced for national application in the Russian Federation from 1 September 2011. Users should verify national adoption or later amendments before use.

Q: Is it part of a series?

A: It is a standalone interstate standard for axle billets but is intended to be used together with other GOST standards that govern testing methods, material analysis and axle/wheelset technical requirements (several normative references are listed in the standard).

Q: What are the key keywords?

A: Axle billets, axle blanks, railway rolling stock, carbon steel, hot deformation, technical conditions, marking, acceptance, testing.