GOST 4784-74 PDF

Full title and description

GOST 4784-74 — "Алюминий и сплавы алюминиевые деформируемые. Марки" (English: "Wrought aluminium and aluminium alloys. Grades"). The standard specifies the grades (markings) and chemical-composition limits for wrought aluminium and wrought aluminium alloys intended for manufacture of semi-finished products by hot or cold deformation.

Abstract

This GOST defines the designation, classification and chemical composition ranges for aluminium and deformable aluminium alloys used for sheets, strips, plates, profiles, rods, tubes, wire and forgings. It was originally adopted in the mid-1970s, contains several amendments, and was used as the normative reference for grade selection and marking of wrought aluminium products in the USSR and successor jurisdictions until superseded.

General information

• Status: Replaced / superseded (no longer active as of 01 July 2000).
• Publication date: Issued as GOST 4784-74 (1974); date of official introduction into effect 01 January 1976.
• Publisher: State Committee for Standards of the Council of Ministers of the USSR (Gosstandart); published by Izdatel'stvo Standartov (official standards publisher).
• ICS / categories: 77.120.10 (Aluminium and aluminium alloys; wrought aluminium products).
• Edition / version: Original designation GOST 4784-74 (with subsequent amendments/changes published over the life of the standard; later replaced by GOST 4784-97).
• Number of pages: Typically published as a short technical standard (around 10 pages in common electronic copies / reprints).

(General information consolidated from archival and standards-database records.)

Scope

The standard applies to aluminium and deformable aluminium alloys intended for manufacture of semi-finished products — sheets, strips, plates, profiles, panels, rods, tubes, wire, stampings and forgings — produced by hot or cold deformation, as well as to relevant ingots and slabs. It provides grade (marking) names and limits for main alloying and impurity elements and includes special provisions for certain food-contact applications and other use cases.

Key topics and requirements

• Designation and nomenclature of wrought aluminium and aluminium-alloy grades (letter and numeric marking systems).
• Permissible chemical-composition ranges for base aluminium and common wrought alloy systems (Al, Al–Cu–Mg, Al–Mn, Al–Mg, Al–Zn–Mg, etc.).
• Limits on impurities and "other elements" reporting; rules for high-purity and technical-purity aluminium.
• Requirements and notes for special-purpose grades (e.g., food-industry marking restrictions and allowable Pb/As limits where applicable).
• Normative references to related interstate/CMEA (СТ СЭВ) standards and testing/marking rules.

Typical use and users

Engineers, metallurgists, materials specifiers, procurement specialists and manufacturers of aluminium semi-finished products historically used GOST 4784-74 to select alloy grades, verify compositions and ensure consistent marking of wrought aluminium products. Although the 1974 standard is superseded, its grade nomenclature and chemical tables remain relevant for understanding older documentation, legacy product specifications and cross-referencing with later standards (including GOST 4784-97).

Related standards

Key related and derivative documents include: GOST 4784-65 (earlier edition), GOST 4784-97 (replacement/interstate standard adopted 1997/introduced 01 July 2000), ST СЭВ 730-77 and ST СЭВ 996-78 (interstate/CMEA compatibility references), and various GOSTs addressing testing methods and product technical requirements that reference aluminium grades (for example standards on determination methods, corrosion testing and product-specific technical requirements).

Keywords

aluminium; aluminium alloys; wrought aluminium; grades; chemical composition; semi-finished products; GOST; marking; Izdatel'stvo Standartov; Gosstandart.

FAQ

Q: What is this standard?

A: GOST 4784-74 is a Soviet-era national standard that defines the grades (markings) and chemical-composition limits for wrought aluminium and deformable aluminium alloys used for semi-finished products.

Q: What does it cover?

A: It covers grade names/markings, chemical-composition ranges for aluminium and common wrought alloy systems, rules on impurities and special provisions for certain applications (for example, restrictions for food-contact materials), and normative references to related standards.

Q: Who typically uses it?

A: Metallurgists, materials engineers, product designers, standards specialists and procurement/manufacturing personnel working with wrought aluminium products — especially when dealing with legacy specifications and older product documentation referencing GOST grade names.

Q: Is it current or superseded?

A: Superseded — GOST 4784-74 was replaced by GOST 4784-97; the replacement standard was adopted in 1997 and introduced as national/interstate regulation (replacement effective from 01 July 2000).

Q: Is it part of a series?

A: Yes — the 4784 family of standards covers aluminium/wrought-alloy grades across editions (for example earlier GOST 4784-65 and the later GOST 4784-97), and the text cross-references related GOST and ST СЭВ documents on alloy systems, testing and product requirements.

Q: What are the key keywords?

A: Aluminium; wrought aluminium; alloys; grades; chemical composition; semi-finished products; marking; GOST 4784.