Gost 2685-75 Pdf !full! -
(International Organization for Standardization) for aluminum casting alloys. ASTM B26/B108 (American standards for sand and chill casting). GeM marketplace
: Standardized codes (e.g., T1, T4, T6) that specify the tempering and aging processes required to achieve specific mechanical properties.
When using GOST 2685-75, manufacturers must follow strict quality control procedures: gost 2685-75 pdf
The standard defines multiple precision classes that are stricter than standard rolling bearings. These correspond loosely to ISO P0, P6, P5, P4, and P2, but with unique Soviet designations:
The standard covers alloys intended for sand casting, investment casting, permanent mold casting, and die casting. It serves as the primary procurement specification for industries ranging from general machinery to high-precision aerospace applications. When using GOST 2685-75, manufacturers must follow strict
| | Fe (%) | Si (%) | Mg (%) | Cu (%) | Zn (%) | Ni (%) | Al (%) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | AL1 (GOST 2685-75) | < 0.8 | < 0.7 | 1.25–1.75 | 3.75–4.5 | < 0.1 | 1.75–2.25 | 90.1–93.25 | | AL6 (GOST 2685-75) | ≤ 1.1 | 4.5–6 | ≤ 0.1 | 2–3 | ≤ 0.3 | - | Rest | | AL8 (GOST 2685-75) | ≤ 0.3 | ≤ 0.3 | 9.3–10 | ≤ 0.1 | ≤ 0.1 | - | Rest |
For precise technical data, consulting the official GOST 2685-75 PDF is required to verify the chemical and mechanical properties. If you'd like, I can: | | Fe (%) | Si (%) |
A high-strength alloy belonging to the Magnesium-Neodymium-Zirconium (Mg-Nd-Zr) system.
Engine components, automotive blocks, parts under cyclic thermal stress. AL7, AL19, AL33
) for different casting methods (sand casting, chill casting, investment casting).
Even after obtaining the PDF, engineers frequently misinterpret this standard. Avoid these pitfalls: