Sites specializing in metallurgical standards often charge a fee for a verified, translated (English/Russian) version of the standard. Search Keywords: To find the PDF, use combinations like: "GOST 2685-75 pdf english" "ГОСТ 2685-75 скачать" "Aluminium casting alloys GOST 2685" 5. Alternatives and Related Standards
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 While it has been officially superseded in modern regulatory frameworks by newer standards like GOST 1583-93 or GOST 1583-89 , it remains a foundational reference text for engineers, metallurgists,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.
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Under GOST 2685-75, aluminum casting alloys were traditionally designated by the letters (АЛ – Алюминий Литейный ) followed by a sequential number assigned to the alloy formulation (e.g., AL2, AL4, AL9, AL19 ). Concurrently, the standard laid out an alternate, more descriptive chemical labeling system that tracking platforms still recognize: АК (AK) : Aluminum-Silicon system (Silumins) АМ (AM) : Aluminum-Copper system АМг (AMg) : Aluminum-Magnesium system АЦ (ATs) : Aluminum-Zinc system Special suffixes denoted purity levels within the code: ч (ch) : Clean/Pure ( чистый ) gost 2685-75 pdf
Understanding GOST 2685-75: Specifications for Aluminum Casting Alloys
Note: GOST 2685-75 is a Soviet standard number that can refer to different technical standards depending on the domain (for example, electrical, mechanical, optical, etc.). This post assumes the user is asking about the most commonly referenced GOST 2685-75 concerning photographic film and light sensitivity (photographic exposure) — a frequent topic for historians and engineers — and will flag alternatives at the end. If you meant a different domain, see the “Other possible subjects” note below.
The PDF document outlines precise sampling methodologies, detailing how test coupons must be cast alongside the main components to ensure accurate destructive testing. Industrial Applications Sites specializing in metallurgical standards often charge a
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Exceptional fluidity, low shrinkage, and excellent corrosion resistance.
: References specific heat treatment regimes (e.g., T2 condition) required to achieve desired physical characteristics or to relieve internal stresses. Standard History : Inception : Introduced on January 1, 1977. Predecessor : Replaced GOST 2685-63. Successor : Superseded by GOST 1583-89 . Official Documentation Marks, technical requirements and test methods"
Given its canceled status, finding the full PDF requires searching specialized archives. Here are the most reliable methods:
Since this is an older Soviet-era standard, finding a free digital version can be difficult, as many sources are paid, official regulatory repositories.
: Allowed percentages of aluminum, silicon, magnesium, etc., for each grade. Mechanical Properties
Pump bodies, valves, and propellers designed from corrosion-resistant Al-Mg grades.
A: The official title is "Aluminum casting alloys. Grades, technical requirements and test methods" (in Russian: "Сплавы алюминиевые литейные. Марки, технические требования и методы испытаний").