The DIN 1714 standard is obsolete and has been replaced by DIN EN 1982:2017-11.
Scope of DIN 1714 cast aluminum bronzes
The DIN 1714 technical documentation regulates the physical and mechanical characteristics of cast aluminum bronze, including special multi-component compositions. The standard establishes a unified classification system that defines the symbolic and numerical designation of castings used in high-load engineering components.
The following labeling formats are used to identify multi-component alloys (using G-FeAlBzF50 or 2.0940.01 as examples):
- Special cast aluminum bronze G-FeAlBzF50 (according to DIN 1714);
- Special cast aluminum bronze 2.0940.01 (according to DIN 1714).
EV Group China reminds: it is permissible to use either only the symbolic or only the numerical identifier in contractual documentation, provided that it does not compromise the unambiguous interpretation of the specification. If acceptance testing is required, the control procedure is determined at the ordering stage in accordance with DIN 50049 protocols. Melt analysis includes the control of alloying elements, as well as the regulated content of lead and zinc.
Arbitration samples are conducted according to current methods of “Metal Analysis” (published by the Society of German Metallurgists and Miners). The technological strength indicators provided in the specifications correspond to castings with a wall thickness of approximately 25 mm. Engineers should consider the gradient of properties across the cross-section: strength indicators are traditionally higher in the surface layers than in the core of the part.
Recommended average physical property values should serve as a basis for design and cross-section calculation, which allows for avoiding excessive safety margins and optimizing the metal content of the product. To verify parameters, tests are applied to samples (separately cast, cast strips, or cut-outs from the body of the part), the dimensions of which are regulated by DIN 50125. Brinell hardness (HB10) is determined according to DIN 50351 under a load of P=10D² as the arithmetic mean of at least 6 measurements in different zones of the casting.