Description
Inconel 625 has a high level of pitting and crevice corrosion resistance to chloride contaminated media, such as sea water, neutral salts and brines. Alloy 625 is used in chemical processing, aerospace and marine engineering oil & gas, pollution control equipment and nuclear reactors.
Inconel 625 Specifications
Grade |
UNS |
W.Nr |
Alloy 625/Haynes 625 |
N06625 |
2.4856 |
Available Shapes: Bar,Rod,Pipe,Wire,Strip,Plate,Sheet,Spring,Fittings
Form | ASTM |
Rod and bar | B 446 |
Plate, sheet and strip | B 443, B 906 |
Seamless pipe and tube | B 444, B 829 |
Welded pipe | B 705, B 775 |
Welded tube | B 704, B 751 |
Welding fitting | B 366 |
Billet and bar for reforging | B 472 |
Forging | B 564 |
Chemical composition
% | Ni | Cr | Mo | Fe | C | Mn | Si | P | S | Co | Nb+Ta | Al | Ti |
min | 58.0 | 20.0 | 8.0 | 3.15 | |||||||||
max | 23.0 | 10.0 | 5.0 | 0.10 | 0.50 | 0.50 | 0.015 | 0.015 | 1.00 | 4.15 | 0.40 | 0.40 |
Physical properties
Density | 8.44 g/cm3 |
Melting range | 1290-1350℃ |
Features:Inconel 625 has excellent strength at temperatures up to 816℃. At higher temperatures, its strength is generally lower than that of other solid solution strengthened alloys. Inconel 625 has good oxidation resistance at temperatures up to 980℃ and shows good resistance to aqueous corrosion, but is relatively moderate compared to other more capable corrosion resistant alloys.
Applications:Chemical process industry and sea water application. Inconel 625 is used in short term applications at temperatures up to 816℃. For long term service, it is best restricted to a maximum of 593℃, because long term exposure above 593℃ will result in significant embrittlement.