According to the number of constituent elements, alloys can be divided into binary alloys, ternary alloys, and multi-element alloys. Common alloys are aluminum alloy, steel, titanium, etc. The price of Hastelloy 625 gold is 350 yuan per kilogram, the price is low, and the support is free to deliver to the door. It has good resistance to reduction and mild oxidation corrosion. Excellent resistance to stress corrosion cracking. Very good resistance to localized corrosion. A corrosion-resistant alloy with many excellent properties. It has good resistance to oxidation and moderate reduction corrosion.
Alloy concepts and properties
Alloy: A substance that is formed by fusing two or more metals or metals and nonmetals, and has metallic properties.
①The alloy must contain metal elements
②Alloys may also contain non-metallic elements;
③Most alloys are mixtures;
④ Each component in the alloy still maintains its chemical properties;
⑤ Formed by fusion conditions.
In general, alloys are compared to their pure metal constituents
(1) The hardness is greater than that of any component metal.
Such as aluminum alloy is harder than pure aluminum, and iron alloy is harder than pure iron
(2) The melting point is lower than that of any constituent metal.
Such as the melting point of fuse and pig iron is lower than that of pure iron
(3) Often have excellent physical, chemical, or mechanical properties.
(4) The electrical and thermal conductivity is lower than that of any component metal.