GOST 18175-78 PDF

Full title and description

GOST 18175-78 — "Бронзы безоловянные, обрабатываемые давлением. Марки" (English: Tin‑free pressure‑worked bronzes. Grades). The standard defines grades, chemical composition limits and delivery forms for non‑tin bronzes intended for deformation processing (hot and cold pressure working) and for manufacture of blanks and semi‑finished products.

Abstract

Specification of tin‑free (without added tin) copper‑based bronzes that are produced and supplied for pressure deformation processes. The document lists alloy grades (aluminium bronzes, manganese bronzes, bearing and other bronzes), their typical composition ranges, and recommended product forms (plates, bars, billets) for use as blanks and semi‑finished parts.

General information

• Status: Listed as a long‑standing USSR/Russian GOST; registries show it as in force in many catalogs while some registries note historical amendments—check national registry for the current legal status in your country.
• Publication date: Adopted 1978; introduced into force 01 January 1979 (entry into force date commonly reported as 1979).
• Publisher: State Committee for Standards of the Council of Ministers of the USSR (Gosstandart) / successor national standards bodies for Russian/CIS publications.
• ICS / categories: 77.120.30 — Copper and copper alloys (non‑ferrous metallurgy).
• Edition / version: Original designation GOST 18175‑78 (with subsequent amendments recorded in various registries); text has recorded amendments integrated in later versions.
• Number of pages: 13 pages (typical published PDF copy length reported by multiple distributors).

Scope

The standard applies to tin‑free bronzes intended for pressure processing (rolling, forging, stamping, drawing) and for manufacture and supply as blanks and semi‑finished products. It standardizes grades and compositional limits so that producers, suppliers and users of bronze semi‑finished products have common technical requirements.

Key topics and requirements

• Designation and nomenclature of tin‑free bronze grades (aluminium bronzes, manganese bronzes, bearing bronzes, copper‑based bronzes without tin).
• Chemical composition limits for alloying elements (typical entries include BrA5, BrA7, BrAZh9‑4 and many other standardized marks with specified ranges for Al, Mn, Fe, Pb, Zn, etc.).
• Permitted impurities and mass‑fraction limits for elements such as Mn, Pb, Fe and others.
• Forms of supply and semi‑finished product types — plates, billets, bars and other shapes suitable for pressure working.
• References to related CMEA/interop standards where alignment of grades is required (useful for export or historical conformity checks).

Typical use and users

Used by metallurgical producers, metal service centers, foundries and machine‑building factories that produce or specify bronze blanks and semi‑finished parts for bearings, bushings, structural components, shipbuilding, electrical contacts and corrosion‑resistant parts. Design and procurement engineers, materials specialists and quality control laboratories consult the standard when selecting or verifying bronze grades for deformation processing.

Related standards

Preceded by GOST 18175‑72 (replaced) and coordinated with several intergovernmental (CMEA/SEV) documents referenced in the text (for example ST СЭВ 377‑76 and ST СЭВ 731‑77 in annexes). The standard also cross‑references other metallurgical and testing GOSTs used to determine composition and mechanical properties.

Keywords

bronze, tin‑free bronze, non‑tin bronzes, aluminium bronze, manganese bronze, copper alloys, pressure‑worked, semi‑finished products, GOST 18175‑78, metal grades, USSR standard.

FAQ

Q: What is this standard?

A: GOST 18175‑78 is a state standard that defines grades and basic technical requirements for tin‑free bronzes intended for pressure deformation and supply as blanks and semi‑finished products.

Q: What does it cover?

A: It covers the names and designations of tin‑free bronze grades, their chemical composition limits, permitted impurities, and typical product forms for delivery (plates, bars, billets) used in manufacturing and further deformation processing.

Q: Who typically uses it?

A: Metallurgical producers, metal distributors, procurement and design engineers, quality/control labs and manufacturers of components that require bronze blanks or semi‑finished parts for mechanical or electrical applications.

Q: Is it current or superseded?

A: The standard was adopted in 1978 and entered into force in 1979. Catalogs and registries show it in continued use with recorded amendments in later years; national registries may list current validity or withdrawal status—consult your national standards body or official registry for the legally binding status in your jurisdiction.

Q: Is it part of a series?

A: It is part of the family of GOSTs for non‑ferrous metals and copper alloys (ICS 77.120) and is related to earlier and parallel GOST documents governing bronze compositions, testing methods and product forms.

Q: What are the key keywords?

A: Bronze, tin‑free bronze, aluminium bronze, manganese bronze, copper alloys, pressure‑worked, semi‑finished product, GOST 18175‑78.