Alloy 825

Nombres alternativos y comerciales
Alloy 825

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Description

Alloy 825 is an austenitic nickel-iron-chromium alloy with additions of copper, molybdenum, and titanium-stabilised to resist pitting and intergranular attack. Molybdenum and copper enable Alloy 825 to resist reducing agents and acids, while chromium gives Alloy 825 resistance to oxidising conditions. Mechanical properties are stable up to approximately 550°C. It can be supplied in hot worked annealed and cold drawn conditions.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por Broder Metals Group.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

All categories

Propiedades

Mecánica

Property	Temperature	Value
Elongación	23.0 °C	30 % Show Supplier Material materials with Elongación of 30 %
Límite elástico Rp 0,2	23.0 °C	241 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 241 MPa
Resistencia a la tracción	23.0 °C	586 MPa Show Supplier Material materials with Resistencia a la tracción of 586 MPa

Chemical properties

Property	Value
Aluminio	0.2 % Show Supplier Material materials with Aluminio of 0.2 %
Azufre	0.03 % Show Supplier Material materials with Azufre of 0.03 %
Carbono	0.05 % Show Supplier Material materials with Carbono of 0.05 %
Cobre	1.5 - 3 % Show Supplier Material materials with Cobre of 1.5 - 3 %
Cromo	19.5 - 23.5 % Show Supplier Material materials with Cromo of 19.5 - 23.5 %
Hierro	22 % Show Supplier Material materials with Hierro of 22 %
Manganeso	1 % Show Supplier Material materials with Manganeso of 1 %
Molibdeno	2.5 - 3.5 % Show Supplier Material materials with Molibdeno of 2.5 - 3.5 %
Níquel	38 - 46 % Show Supplier Material materials with Níquel of 38 - 46 %
Silicona	0.5 % Show Supplier Material materials with Silicona of 0.5 %
Titanio	0.6 - 1.2 % Show Supplier Material materials with Titanio of 0.6 - 1.2 %

Technological properties

Property
Application areas	Alloy 825 ideally suitable for use in heating coils, tanks, baskets and chains in sulphuric acid pickling plants, heat exchangers in phosphoric and other acid and chemical production applications. Other applications include sea-water-cooled heat exchangers, offshore product piping systems, for components in sour gas service in pollution- control equipment, and oil and gas well piping and in nuclear fuel reprocessing components.
Corrosion properties	Alloy 825 is therefore highly suitable where required properties include good resistance to stress-corrosion cracking, pitting, and crevice corrosion. Alloy 825 is also often used where oxidising and non-oxidising hot acids (especially sulphuric, phosphoric, nitric and organic acids, as well as alkalis such as sodium or potassium hydroxide) come into contact with the metal.