Gost 2685-75 Pdf Jun 2026

To ensure compliance with the technical requirements, GOST 2685-75 outlines specific testing methodologies. These include procedures for evaluating the alloy's mechanical properties, its microstructure, and its ability to withstand various environmental conditions. For instance, the heat resistance of these alloys is defined, with many capable of operating at temperatures up to 200 °C.

: Specifies the exact percentages of base aluminum and alloying elements like Copper (Cu), Magnesium (Mg), and Manganese (Mn).

Defines the chemical makeup of alloys like AK9ч (AL4), AK7ч (AL9), and AK5M2 (AL3V).

The core value of downloading the lies in its detailed chemical breakdown. The standard groups cast aluminum alloys primarily by using the designation "АЛ" (Aluminium Casting / Алюминиевый Литейный) followed by a specific number (e.g., АЛ2, АЛ4, АЛ9). It divides these materials into five unique metallurgical groups : Chemical System Base Common Name / Examples Key Industry Applications Group I Aluminum–Silicon (Al–Si) Silumins (АК9ч / АЛ4, АК7ч / АЛ9) gost 2685-75 pdf

: It was historically vital for automotive, aerospace, and industrial machinery sectors across the USSR and partner nations. GeM marketplace Accessing the PDF

The standard text and PDFs are available from national standards distributors and archival collections of GOST documents; newer consolidated standards (replacements) are published separately. (Search for "ГОСТ 2685-75 PDF" or the replacement "ГОСТ 1583-89" at standards libraries or authorized publishers.)

: Alloys are generally hardened using heat treatment (quenching and artificial aging) to improve their mechanical properties. To ensure compliance with the technical requirements, GOST

: Generally allows for higher iron content compared to sand casting.

The standard strictly defines the permissible ranges for alloying elements and maximum impurity limits. Impurities such as Iron (Fe), Nickel (Ni), and Copper (Cu) are strictly limited due to their detrimental effect on the corrosion resistance of magnesium.

is a former Soviet and interstate standard that established the technical requirements for aluminum casting alloys, including their grades, chemical compositions, and mechanical properties . While it has largely been superseded by more modern standards like GOST 1583-89 , it remains a critical reference for legacy engineering projects, spare part manufacturing, and historical technical documentation. Scope and Technical Requirements : Specifies the exact percentages of base aluminum

Precise percentages of aluminum, silicon, copper, magnesium, and other elements for each grade. Mechanical Properties:

The PDF document of this standard includes specific technical requirements that manufacturers must follow: Chemical Composition