Description: Alloy 400 ( UNS N04400) is a nickel-base alloy with resistance to a variety of corrosive conditions. The alloy is most frequently specified in environments ranging from mildly oxidizing through neutral and in moderately reducing conditions. An additional application area of the material is in marine environments and other nonoxidizing chloride solutions.
Alloy 400 is low in strength in the annealed condition. For this reason, a variety of tempers are used which have the effect of increasing the strength level of the material.

Applications:
Marine and chemical processing;
Valve, pumps,;
Heat Exchangers

Corrosion Resistance:
Alloy 400 is more corrosion resistant than commercially pure nickel Monel 200 under reducing conditions, and more resistant than refined copper alloys under oxidizing conditions;
Alloy 400 is resistant to most alkalies, salts, organic substances and atmospheric conditions;
Alloy 400 is exceptionally resistant to chloride stress corrosion cracking. Application in water, including sea and brackish water, is a major use of the material.

Chemical Analysis:

C	Mn	P	S	Si	Al	Ni+Co	Cu	Fe
0.10	0.50	0.005	0.005	0.25	0.02	Balance	32.0	1.0

Mechanical Properties:

Yield Strength MPa	Ultimate Tensile Strength MPa	Elongation	Elastic Modules (E) Mpa
240	520	45	180

Physical Properties:
Density: 8.83g/cm3