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Technical Data Sheet

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.

Chemical Composition Limits
Weight %CSNi+CoFeMnSiCu
Nickel 4000.30 max0.024 max63.0 max2.50 max2.0 max0.50 max28-34

Typical Mechanical Properties

MaterialForm and ConditionTensile Strength MPaYield Strength (0.2% Offset) MPaElongation (%)Hardness Rockwell B
Alloy 400Annealed Rod and Bar517-620172-34560-3560-80
Alloy 400Hot Rolled Plate Annealed482-586193-34550-3560-76
Alloy 400Sheet Annealed482-586207-31045-3565-80
Alloy 400Tube Cold drawn Annealed Seamless482-586172-31050-3575 max

Availability

Alloy 400 (UNS N04400) is available in Bar (Round), Tube, Flat Bar, Wire, Billet, Sheet, Plate, Pipe, Forgings. View Stock List, Plate Stock List or contact Sales for further availability.

Specifications

BarASTM B 164, QQ N 281, DIN 17752, AMS 4675
SheetASTM B 127, QQ N 281, BS3072NA13, AMS 4544, DIN 17750
PlateASTM B 127, QQN 281, BS3072NA13, AMS 4544, DIN 17750
StripBS3073NA13, ASTM B127, AMS 4544, DIN 17750
PipeASTM B 185
TubeASTM B165, AMS 4574, AMS 4575
ForgingASTM B564, DIN 17752, AMS 4675
OtherW.Nr 2.4360, UNS N04400, NACE MR-01-75, Wire AMS 4730 Monel 400 (tradename), ISO 15156


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