GOST 22703-2012 PDF

Full title and description

GOST 22703-2012 — "Детали литые сцепных и автосцепных устройств железнодорожного подвижного состава. Общие технические условия" (Molded parts of coupler and automatic coupler devices of railway rolling stock. General specifications). The standard establishes general technical requirements for cast parts used in coupler and automatic coupler assemblies of railway rolling stock.

Abstract

This interstate (GOST) standard defines classification, material and mechanical property requirements, acceptance and periodic tests, non‑destructive testing, repair and restoration limits, marking, packing and storage rules for cast components of couplers and automatic couplers intended for 1520 mm gauge rolling stock used on mainline railways. It implements minimum safety requirements used in conformity assessment for railway rolling stock.

General information

• Status: In force — adopted as a national standard of the Russian Federation; includes subsequent amendment No.1 (2018).
• Publication date: 2012 (introduced by Rosstandart order No. 487‑ст on 11 Oct 2012; effective as national standard from 1 March 2013).
• Publisher: Published/issued for distribution by Стандартинформ (Moscow) as the GOST publication; developed by VNIIzhT and adopted by the Interstate Council for Standardization, Metrology and Certification.
• ICS / categories: 45.060.01 (railway rolling stock — coupler and coupling devices).
• Edition / version: Edition 2012 (ГОСТ 22703‑2012); Amendment No.1 introduced by Rosstandart order No. 572‑ст (effective 1 December 2018).
• Number of pages: Catalog records list preliminary matter IV + 15 pages of main text (cataloguing: IV, 15 с. — total content reported in library records).

Scope

Applies to cast parts of coupler and automatic coupler devices used on railway rolling stock designed for operation on 1520 mm gauge mainline tracks. The standard sets requirements for production, inspection and testing of components such as coupler bodies, traction yokes (тяговые хомуты), locking elements, wedges, buffers and other cast items that form part of the coupling device assembly. It does not apply to specialised industrial wagon couplers that are not authorised for operation on public railway lines.

Key topics and requirements

• Classification of cast parts by functional group and safety category.
• Material requirements and metallurgical criteria (specified mechanical properties, impact toughness at low temperature, microstructure checks).
• Acceptance (incoming) tests and periodic tests including dimensional control, mechanical testing and NDT (radiographic, ultrasonic, magnetic particle, etc.).
• Limits and procedures for repair, welding and surfacing of castings (volume/mass of weld metal permitted, corrective procedures).
• Marking, traceability and accompanying documentation (passports for batches with steel grade, serials and standard reference).
• Packing, transport and storage classification (exposure groups per climatic and transport conditions).
• Minimum safety requirements designated for conformity assessment to technical regulations for railway rolling stock.

Typical use and users

Primary users are railway rolling‑stock manufacturers and designers, foundries producing cast coupler components, quality/control laboratories, conformity‑assessment bodies, maintenance and repair depots, procurement specialists for freight and passenger rolling stock and regulatory authorities overseeing railway safety. The standard is used to specify requirements in contracts, technical drawings and acceptance testing programs.

Related standards

Key related documents include the previous version ГОСТ 22703‑91 (replaced), test methods standards such as ГОСТ Р 55185‑2012 (methods of testing coupler parts and assemblies), and national/regional technical regulations on railway rolling stock safety (TR TS / EAEU regulations referenced in the GOST record). Other assembly or component standards for autocouplers (for example standards covering complete autoscoupler assemblies) are commonly used alongside this GOST when specifying finished products.

Keywords

GOST 22703‑2012; castings; coupler parts; automatic coupler; autoscoupler; тяговый хомут; railway rolling stock; acceptance tests; non‑destructive testing; mechanical properties; VNIIzhT; Стандартинформ.

FAQ

Q: What is this standard?

A: It is an interstate (GOST) standard that sets general technical conditions for molded (cast) parts of coupler and automatic coupler devices for railway rolling stock (ГОСТ 22703‑2012).

Q: What does it cover?

A: Classification of parts, material and mechanical property requirements, acceptance and periodic testing (including NDT), repair limits, marking, packing and storage, and minimum safety requirements used in conformity assessment for mainline 1520 mm gauge rolling stock.

Q: Who typically uses it?

A: Foundries, OEMs and suppliers of coupler components, railway design and maintenance organisations, testing laboratories and certification/conformity assessment bodies, plus procurement and regulatory organisations responsible for rolling stock safety.

Q: Is it current or superseded?

A: The 2012 edition (ГОСТ 22703‑2012) was introduced by Rosstandart in October 2012 and came into force in the Russian Federation on 1 March 2013; it remains in force and was amended (Изменение N 1) with effect from 1 December 2018. It replaced ГОСТ 22703‑91.

Q: Is it part of a series?

A: The standard is part of the family of GOST/ГОСТ‑R documents governing coupler and autoscoupler parts and assemblies; related documents include standards for test methods and for complete autoscoupler assemblies, and it implements requirements referenced by regional technical regulations on railway rolling stock safety.

Q: What are the key keywords?

A: Coupler castings, automatic coupler, autoscoupler parts, acceptance tests, non‑destructive testing, mechanical properties, ГОСТ 22703‑2012, railway rolling stock, VNIIzhT, Стандартинформ.