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Monel 450

Monel 450, also known as “Alloy 450”, is a copper-nickel alloy of the 70-30 type which has superior weldability. It is resistant to corrosion and bio-fouling in seawater. The Alloy 450 has good fatigue strength, and has relatively high thermal conductivity. It widely used for seawater condensers, condenser plates, distiller tubes, evaporator tubes, heat exchanger tubes and saltwater piping. Usually, the welding processes for Monel 450 alloys include gas tungsten arc welding(GTAW), gas metal arc welding(GMAW), and submerged-arc welding(SAW) with the Monel filler metal 67.

Monel 450 tube fittings for quick joint.

Monel 450 tube fittings for quick joint.

1. Chemical Composition Requirements

The Chemical Composition of Alloy 450/ Monel 450, %
Ni29.0-33.0
CuBalance
Fe0.4-1.0
Mn≤1.0
S≤0.020
Zn≤1.0
Pb≤0.05
P≤0.020

2. Typical Physical Properties of Monel 450

DensityMelting RangeThermal ConductivityElectrical Resistivity
g/cm3°C°FW/m.kµΩ·m
8.911170-12402140-226029.4412

3. Mechanical Properties of Monel 450

Tensile Strength, min.Yield Strength, min.Elongation, min.
MpaksiMpaksi%
385561652446

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    Hebei Metals Industrial Limited
    (Shijiazhuang Metalsin Pipeline Tech Co., Ltd)
    No. 176, Zhonghua South Street, Shijiazhuang, China.
    Tel: +86-311-89642206
    Fax:+86-311-67906676
    Web: www.metalspiping.com
    Email: sales@metalspiping.com