Open the GOST 2685-75 PDF to the mechanical properties section. Compare the test result with the required yield strength. If lower, reject the batch.
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)
Note: The table below represents approximate minimum values for Sand Casting (S).
Since this is an older standard, finding a high-quality PDF usually involves searching technical archives or specialized repositories. 1. Official Regulatory Portals
Metallurgical laboratories utilize the archived specifications to accurately map legacy codes to global industry equivalencies like ASTM , EN , or ISO . 📥 Where to Find the Document gost 2685-75 pdf
The standard dictates the minimum acceptable mechanical properties based on the casting method used—such as . Литейные алюминиевые сплавы
GOST 2685-75 outlines strict criteria that casting lots must meet before being approved for industrial use.
"Distracted?"
The core value of obtaining the GOST 2685-75 document lies in its chemical composition and grading tables. The standard systematically divided cast aluminum alloys into five distinct metallurgical groups based on their primary alloying systems: Alloy System Group Representative Grades (Alloy Prefix: AL) Primary Mechanical Properties & Uses (Silumins) AL2, AL4, AL4-1, AL9, AL9-1, AL34, AK9, AK7 Open the GOST 2685-75 PDF to the mechanical
Highly corrosive environments, shipbuilding, and chemical processing. Aluminum–Other Components Special-purpose alloys (АК7Ц9 / АЛ11)
GOST 2685-75. ГОСТ 2685-75. Aluminium casting alloys. Marks, technical requirements and test methods. Сплавы алюминиевые литейные. Russian Gost alloy a 2 t2 gost 2685-75
For those interested in exploring the details of the GOST 2685-75 standard, a PDF version is readily available. This resource provides a comprehensive overview of the standard's principles, including:
Resistance to breaking under tension. Elongation (%): Ductility of the material. Hardness (HB): Brinell hardness level. Casting Quality The core value of downloading the lies in
Specialized alloys featuring elements like Zinc, Titanium, or Nickel for specific anti-friction or heat-cycling roles. Technical Requirements Outlined in the PDF
The newer standard tightened the tolerances for harmful impurities like iron (Fe) and lead (Pb) to improve structural reliability.
Characterized by high mechanical strength at elevated temperatures, though they are more prone to hot cracking during the casting process.
Pump bodies, valves, and propellers designed from corrosion-resistant Al-Mg grades.