GOST 977-88 PDF

Full title and description

GOST 977-88 — "Steel castings. General specifications" (Russian: "Отливки стальные. Общие технические условия"). An interstate (GOST) standard that sets general technical requirements, testing, marking, and acceptance rules for steel castings produced from unalloyed, alloyed structural steels and alloy steels with special properties by any casting method.

Abstract

This standard defines classification, technical requirements, chemical and mechanical property limits, quality levels, inspection and testing methods, heat treatment and marking for a wide range of steel casting grades. It is intended to harmonize production and quality control of cast steel parts used in machinery, transport, energy and other industrial applications.

General information

• Status: Adopted and put into effect by the USSR State Committee for Standards; replaced earlier GOST 977‑75 and GOST 2176‑77 and has been used as the principal general technical specification for steel castings in the post‑Soviet standards system.
• Publication date: Approved 22 December 1988; date of introduction (into force): 1 January 1990.
• Publisher: USSR State Committee for Standards (Gosstandart) — subsequently maintained in national/regional standards catalogues of the CIS countries.
• ICS / categories: MKS (ICS) 77.140.80 (Castings); OKP 41 1200; Group B82.
• Edition / version: Designation GOST 977‑88 (1988 edition). Reissues and published reprints include amendments and corrections (examples: listed amendments in later reprints).
• Number of pages: Approximately 33 pages (varies slightly by publisher/translation and reprint).

Scope

Applies to steel castings manufactured by any casting method from unalloyed and alloy structural steels and from cast alloy steels with special properties. The standard establishes general technical conditions that apply unless a product‑specific technical specification (TU) or other normative document provides alternative requirements.

Key topics and requirements

• Classification and list of applicable steel casting grades and their designation conventions.
• Required chemical composition ranges and allowable deviations for specified grades.
• Mechanical properties (tensile strength, yield, elongation, hardness) and acceptance criteria.
• Permitted casting defects, surface quality categories and provisions for repair/processing.
• Non‑destructive and destructive testing methods (visual, dimensional, ultrasonic, radiographic, mechanical tests, etc.) and sampling rules.
• Heat treatment regimes and requirements where applicable.
• Marking, certification, documentation, packaging and delivery rules.
• Reference normative documents and cross‑references to related GOST/Interstate standards.

Typical use and users

Used by foundries, metallurgical producers, quality assurance and inspection laboratories, product designers, procurement specialists, and regulatory bodies. Typical applications include cast parts for machinery, automotive and rail components, pressure equipment, heat‑resistant and wear‑resistant castings for energy and industrial plants.

Related standards

References and related documents include earlier versions and complementary GOSTs such as GOST 977‑75 and GOST 2176‑77 (superseded by this standard), as well as sector and test method standards cited within the text (examples: standards on sampling, heat treatment, mechanical testing and nondestructive examination). The standard also aligns with several intergovernmental (SEV/CMEA) casting grade documents referenced in its informational data.

Keywords

steel castings, cast steel, technical specifications, grades, chemical composition, mechanical properties, testing, heat treatment, foundry, acceptance, marking, GOST 977‑88

FAQ

Q: What is this standard?

A: GOST 977‑88 is an interstate standard titled "Steel castings. General specifications" that sets general technical conditions for production, testing and acceptance of steel castings.

Q: What does it cover?

A: It covers classification of casting grades, chemical and mechanical requirements, permitted defects and surface quality, testing and inspection methods, heat treatment, marking, documentation, packaging and delivery rules applicable to a broad range of steel castings.

Q: Who typically uses it?

A: Foundries, metallurgical manufacturers, engineers and designers who specify cast parts, QA/QC and testing laboratories, and purchasing and regulatory personnel in industries that use steel castings.

Q: Is it current or superseded?

A: GOST 977‑88 was approved in December 1988 and introduced on 1 January 1990; it replaced earlier GOST 977‑75 and GOST 2176‑77. It has been published in reprints and with amendments; users should check national standards catalogs for any later revisions or replacement standards applicable in their country or industry.

Q: Is it part of a series?

A: It is a general‑purpose (interstate/GOST) technical specification for steel castings and is linked by references to other GOSTs and SEV/CMEA documents that cover specific materials, test methods and sector‑specific requirements.

Q: What are the key keywords?

A: Steel castings, cast steel, general technical conditions, grades, testing, foundry, GOST 977‑88.