Gost 2685-75 Pdf | COMPLETE • 2026 |

Understanding the timeline and official status of this standard is vital before applying its structural specifications to modern engineering projects:

Grades: AL3, AL5, AL5-1, AL6, AL32, AK5M2 (AL3V), AK5M7 (AL10V), AK7M2 (AL14V), AK4M4 (AL15V), etc. Copper is added to improve strength and machinability.

Grades: AL2, AL4, AL4-1, AL9, AL9-1, AL34 (VAL5), AK9 (AL4V), AK7 (AL9V), etc. These are known for excellent casting properties and corrosion resistance. gost 2685-75 pdf

: Specialized libraries that store industrial standards from the 1970s.

Stands for Alyuminiy Liteyny (Aluminum Casting). The numeral following it represents the chronological development or registration number of the specific alloy formulation (e.g., AL4 or AL9 ). Understanding the timeline and official status of this

It dictates the precise balance of base aluminum and alloying elements like silicon, copper, magnesium, and manganese. For instance, it defines limits for impurities like iron to ensure structural integrity. Casting Methods:

is a historically critical Soviet state standard titled "Aluminium casting alloys. Marks, technical requirements and test methods" . While it has been officially superseded in modern regulatory frameworks by newer standards like GOST 1583-93 or GOST 1583-89 , it remains a foundational reference text for engineers, metallurgists, and historians working with legacy technical documentation, industrial machinery heritage, and retrofitting projects. These are known for excellent casting properties and

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For the user searching for this PDF, you are likely looking for one of these "heavy hitters" defined in the standard:

GOST 2685-75 categorizes aluminum casting alloys based on their primary alloying elements and chemical behavior. The standard defines: