Monel / Monel®400

UNS N04400

Monel®400 is a nickel-copper alloy that is hardened by cold working only. Monel®400 has low corrosion rate in flowing seawater, therefore it is widely used in marine applications. Monel®400 also has excellent resistance to stress corrosion cracking in most freshwaters. Monel®400 can be used in temperatures up to 1000 ºF. The alloy has great mechanical properties at subzero temperatures.

Chemical Analysis:

     C                       Mn                    S                           Si                      Ni                       Cu                      Fe

0.3% max          2.0% max          0.24% max        0.35% max        63.0% min         28-34% max      2.5% max

Monel®400 sheet is available in thicknesses ranging from .018 to .140". Monel®400 strip in coil from is available in lighter gauges up 24" wide. Monel®400 plate is available up 3" thick.
 
Monel®400 bar is available in wrought bar up to 11" diameter and larger sizes and shapes may be forged to order.
 
Monel®400 seamless pipe is available up to 8" NB. Larger sizes are available in welded construction (100% X-ray) and can also be fabricated to order. Monel®400 tubing is available up 3". Monel 400® redrawn tubes and tubing with tight tolerances can be supplied in almost any size no matter how small the size or quantity.

Monel®400 has many different industrial applications, some of which include:

• Industrial heat exchangers
• Boiler feed water heaters
• Chlorinated solvents
• Marine engineering
• Gasoline & freshwater tanks
• Chemical & hydrocarbon processing equipment

Density                                                           Room temp.           8.82   [g/cm3]

Young's modulus                                         -                                177    [GPa]

Specific heat                                                 Room temp.            436    [J/kg-K]

Coefficient of linear thermal expansion   (ΔT=0-100°C)           13.7   [10^-6/ºC]

Thermal conductivity                                    Room temp.         21.9   [W/(m·K)]

Electric resistivity                                          -                              529    [Ω*m*10^-9]

Relative magnetic permeability                  Paramagnetic      1.010        -

Technical data:

Hardness                                       17 - 22               [HRC]             -                       -

Ultimate tensile strength          670 - 770           [MPa]        [psix10^3]       97 - 112

Service temperature                 -196 / 600          [ºC]              [ºF]                -320.8 / 1112

MONEL® is a registered trademark of the INCO family of companies.