Nickel 400 Tube ( AMS 4574, AMS 4575)

Technical Data Sheet


Chemical Composition Limits
Weight % Ni Cu Fe Mn C S Si
Nickel 400 Tube 63.0 min 28-34 2.50 max 2 max 0.30 max 0.024 max 0.50 max

Alloy 400 (UNS N04400) is a nickel-copper alloy with high strength (comparable to structural steel) and toughness. Alloy 400 also has excellent corrosion resistance in a range of media including seawater, hydrofluoric acid, sulphuric acid and alkalis. Used for marine engineering, chemical, hydrocarbon processing equipment, and heat exchangers.

Typical Mechanical Properties

Material Tensile Strength MPa Yield Strength (0.2% Offset) MPa Elongation (%) Hardness Rockwell B
Alloy 400 Tube 482-586 172-310 50-35 75 max

Alloy 400 is available in Instrument tube, Precision tube and Hydraulic tube. Alloy 400 can also be supplied in Coiled Tube with a seamless and welded execution. For all stock availability contact Sales.

Alloy 400 Tube is available the following size ranges.
Outside Diameter - 0.25mm (0.010") up to 16.00mm (0.625")
Wall - 0.05mm (0.002") up to 1.00mm (0.040")
Straight Lengths - 1.00mm (0.040") up to 5000.00mm (197")
Coils Lengths - 5 Metres to 15 Metres
Standard Tolerance- OD &ID +/-0.03mm (0.0012")
Wall +/- 10%
Tight Tolerance - OD&ID +/- 0.015mm (0.0006")
Wall +/-3%
Some thin wall tubes up to 25.40 mm (1.000") can be supplied.


Alloy 400 (UNS N04400)
AMS 4574
AMS 4575
DIN 17751
Tradename Monel 400

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.