Specifies the maximum stress the material can withstand while being stretched before breaking.
Specific tempers required to achieve desired structural integrity. Alphanumeric Material Nomenclature
If you are looking for GOST 2685-75, you are likely dealing with one of these common alloy grades: Grade (Cyrillic) Grade (Latin) Primary System Common Use Al-Si (Silumin) General purpose automotive parts АК12 Complex, thin-walled castings АЛ2 Corrosion-resistant components АЛ9 High-strength structural parts ⚠️ Important Considerations gost 2685-75 pdf
The standard "ГОСТ 2685-75 Сплавы алюминиевые литейные. Марки" is often accessed for engineering drawings and quality verification.
(International Organization for Standardization) for aluminum casting alloys. ASTM B26/B108 (American standards for sand and chill casting). GeM marketplace Specifies the maximum stress the material can withstand
Defines the chemical makeup of alloys like AK9ч (AL4), AK7ч (AL9), and AK5M2 (AL3V).
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. Марки" is often accessed for engineering drawings and
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.
Characterized by high mechanical strength at elevated temperatures, though they are more prone to hot cracking during the casting process.
"To whomever finds this: I am Engineer Viktor Shulgin, Quality Department, Odessa Fish Combine. Date of writing: March 14, 1976. The standard is wrong. Section 7.2.3 requires a 30-second boiling of the sample before organoleptic testing. This destroys the volatile amines that indicate early spoilage. We have had three shipments of sprats rejected in Leningrad because our 'compliant' product tasted fine out of the jar but turned bitter within two weeks. I have submitted a correction proposal to the Standards Committee. They have not responded. If you are reading this, do not follow 7.2.3. Boil for only 10 seconds, or better yet, test cold. The standard was written for heavy metal detection, not human taste. Forgive my handwriting. The archive guard is coming."