Gost 2685-75 — Pdf |link|
This guide explains how to find, identify, and use , the Soviet-era technical standard for Aluminium casting alloys . 1. Identify the Standard Full Title : GOST 2685-75 (ГОСТ 2685-75) Subject : Aluminum casting alloys; grades.
Solution heat treatment followed by full artificial aging to achieve maximum tensile strength. Evolution and the Transition to GOST 2685-93
Searching for "gost 2685-75 pdf" often leads to a mix of free scanned copies and paid database entries. Here is what to expect from the typical digital version:
: If you cannot find the specific GOST PDF, look for cross-references to ISO 3522 or ASTM B26 , which cover similar aluminum casting specifications. gost 2685-75 pdf
The standard ("Aluminum casting alloys. Grades, technical requirements and methods of testing") is a foundational technical document in the Russian Federation and CIS countries for manufacturing aluminum-based casting alloys. It defines the chemical composition, mechanical properties, and production standards for various aluminum alloys labeled with the prefix "АЛ" (AL), such as AL2, AL4, AL9, and more. These alloys are critical in engineering for producing high-quality castings, particularly where high sealing (leak-tightness) and castability are required.
However, it is not a tutorial; it is a specification sheet. If you do not have a background in metallurgy, the tables will be difficult to interpret. For the professional, it is a 5-star reference document. For the hobbyist, it is a confusing list of numbers.
Despite being superseded, GOST 2685-75 remains a valuable historical document and is frequently referenced in technical literature, older repair manuals, and in the specifications for legacy industrial equipment. For current manufacturing projects, however, it is crucial to refer to the latest version (GOST 1583-93 or its modern equivalent) to ensure compliance. This guide explains how to find, identify, and
GOST 2685-75 outlines strict criteria that casting lots must meet before being approved for industrial use.
GOST 2685-75 Aluminum Casting Alloys: Grades, Technical Requirements, and Test Methods.
Automotive blocks, aerospace housings, complex marine casings. Aluminum–Silicon–Copper (Al–Si–Cu) Copper-Silumins (АК5М / АЛ5) Solution heat treatment followed by full artificial aging
GOST 2685-75 is a standard developed by the State Committee for Standards of the USSR ( Gosudarstvennyi Komitet po Standartam SSSR). The standard provides guidelines for geological and geophysical investigations, including:
Each specific alloy is designated by an alphanumeric code (e.g., AK9, AL2, AL4, AL9) that dictates the exact permissible percentages of impurities and alloying elements. Mechanical Properties and Testing
Annealing to relieve internal casting stresses and improve dimensional stability.
(Aluminium casting alloys. Marks, technical requirements and test methods) was a Soviet Union state standard that strictly regulated the composition and quality of aluminum alloy castings.
