Alloy 400

Energy Steel Industrial Co., Ltd.
Steel Fabrication,Special Steel,Nickel Alloy Steel Tube

Category

Alloy 400

Alloy 400, also known as Monel 400, is a nickel-copper alloy that is highly resistant to a variety of corrosive conditions, making it suitable for a wide range of applications.

It is composed of approximately 63% nickel and 28-34% copper, with small amounts of other elements such as iron, manganese, and silicon. This alloy was one of the first nickel-copper alloys developed and remains popular due to its unique combination of properties.

Alloy 400 is known for its excellent resistance to various corrosive environments, including seawater, acids (sulfuric, hydrochloric, etc.), alkaline solutions, and many other chemicals. This makes it ideal for applications in marine, chemical processing, and oil and gas industries.

Product Description
Available tube product forms
Straight
Coiled
Seamless
Seam welded, cold redrawn and annealed

Typical Applications
Heat exchangers
Steam Generators
Condenser Tubes
Nuclear core cooling tubes

Typical manufacturing specifications
ASTM B163
ASTM B165
AMS 4574
BS3074

Industries predominantly using this grade
Chemical processing
Oil and gas
Nuclear and Power
Technical Data

Mechanical Properties

Temper

Annealed

Tensile Rm

70

ksi (min)

Tensile Rm

480

 MPa (min)

R.p. 0.2% Yield

28

ksi (min)

R.p. 0.2% Yield

195

MPa (min)

Elongation (2” or 4D gl)

40

% (min)


Physical Properties (Room Temperature)

Specific Heat (0-100°C)

427

J.kg-1.°K-1

Thermal Conductivity

21.8

W.m -1.°K-1

Thermal Expansion

13.9

μm/μm/°C

Modulus Elasticity

173

GPa

Electrical Resistivity

5.47

Ohm-cm

Density

8.83

g/cm3


Chemical Composition (% by weight)


Element

Min

Max

C

-

0.3

Si

-

0.5

Mn

-

2

S

-

0.24

Cu

Balance

Fe

-

2.5

Ni

63

70