Alloy 400 – TUBES

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Applications

INDUSTRIAL

Power Plants, Chemical Industry, Mineral Oil Distillation Plants, Offshore Platforms

Chemical Composition (Nominal) %
Element Percentage (%)
Ni (Nickel) 63.0 min
Cu (Copper) 28.0 – 34.0
Fe (Iron) 2.5 max
Mn (Manganese) 2.0 max
C (Carbon) 0.3 max
Si (Silicon) 0.5 max
S (Sulfur) 0.024 max

 

Features
  • Resistance against chloride-induced stress corrosion
  • Excellent strength even at low application temperatures
  • Easy processing compared to other high-alloy materials
Physical Properties
Density 8.82 g/cm³ (0.32 lb/in³) at 20°C

 

Standard

ASTM B165 for seamless pipe and tube

Material

MONEL 400 / UNS N04400 / 2.4360 & 2.4361

Mechanical Properties

 

Heat Treatment Tensile Strength

min, psi (MPa)

 Yield Strength

min, (0.2% offset)

psi (MPa)

 Elongation

in 2 in. or 50 mm

(or 4 D), min, %
Annealed: 5 in. (127 mm) outside diameter and under 70,000 (480) 28,000 (195) 35
Annealed: Over 5 in. (127 mm) outside diameter 70,000 (480) 25,000 (170) 35
Stress-Relieved: All sizes 85,000 (585) 55,000 (380) 15

 

 

Surface

Bright annealed / annealed

Package

Wooden case

Heat Treatment

Annealed / Stress-Relieved

The soft annealing should be performed at temperatures of 700 to 900°C (1,292 to 1,652°F), preferably at about 825°C (1,517°F).

Stress-relief annealing at about 550 to 650°C (1,022 to 1,202°F) should then occur, in order to prevent stress corrosion cracking.