UNS N06625 (Inconel 625) is a solid solution strengthened nickel-based high-temperature alloy primarily composed of nickel, chromium, molybdenum, and niobium:
Corrosion resistance: It exhibits excellent performance in both oxidizing and reducing media, with resistance to pitting corrosion, crevice corrosion, and chloride stress corrosion cracking (SCC). It performs exceptionally well in strong acid environments such as hydrochloric acid and sulfuric acid.
High-temperature performance: It maintains high strength within the temperature range of -196°C to 980°C, with outstanding creep resistance and oxidation resistance. It can be used at temperatures up to 950°C for extended periods.
Alloy UNS N06625 products are furnished in two grades of different heat-treated conditions:
Grade 1 (Annealed)—Material is normally employed in service temperatures up to 1100°F (593°C).
Grade 2 (Solution Annealed)—Material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required.
NOTE: Hot-working or reannealing may change properties significantly, depending on working history and temperatures.
Inconel 625 Plate Mechanical Properties
| Grade |
Product |
Tensile
Strength
min, psi (MPa) |
Yield Strength
0.2 % Offset,
min, psi (MPa) |
Elonga tion in 2
in. or 50
mm, min,
% |
| Grade1 |
annealed |
Cold-rolled sheet and strip |
120(827) |
60(414) |
30 |
| Hot-rolled sheet and hot-rolled plate up to 2.75 in. (70 mm), incl |
110(758) |
55(379) |
30 |
| Cold-rolled plate up to 0.375 in. (9.5 mm), incl |
110(758) |
55(379) |
30 |
| Grade2 |
solution annealed |
Cold-rolled sheet and strip, hot-rolled sheet, cold-rolled plate, and hot-rolled plate |
100(690) |
40(276) |
30 |
Inconel 625 Plates are produced according to ASTM B443 standards, used for manufacturing chemical containers and structural components.
Inconel 625 Plates Applicaiton:
Chemical reactors: Used to manufacture reactors and heat exchangers in strong acid media such as nitric acid and phosphoric acid
Resistant to corrosion by inorganic acid mixtures, suitable for high-temperature, high-concentration chemical environments
Nuclear power plants: Used for cooling system pipes and reactor components, resistant to irradiation and high-temperature water corrosion
