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Monel 400 Tube

Monel 400 Tube
Monel 400 Tube
  • Introduction
  • Parameters
  • Application
Description:

ASTM B127,B16,B165, B366,B725
Monel400 /UNS N04400 / DIN2.4360

  Monel 400 is a nickel-copper alloy (about 67% Ni-23% Cu) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Alloy 400 is a solid solution alloy that can only be hardened by cold working. This nickel alloy exhibits characteristics like good corrosion resistance, good weldability and high strength. A low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of  corrosive conditions led to its wide use in marine applications and other non-oxidizing chloride solutions. This nickel alloy is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated. As would be expected from its high copper content, alloy 400 is rapidly attacked by nitric acid and ammonia systems.
  Monel 400 has great mechanical properties at subzero temperatures, can be used in temperatures up to 1000o F, and its melting point is 2370-2460o F. However, alloy 400 is low in strength in the annealed condition so, a variety of tempers may be used to increase the strength
 

The characteristics of Monel 400/ UNS N04400/ DIN 2.4360:
·         Resistant to seawater and steam at high temperatures                             
·         Excellent resistance to rapidly flowing brackish water or seawater
·         Exceellent resistance to stress corrosion cracking in most freshwaters
·         Particularly rsistant to hydrochloric and hydrofluoric acids when they are de-aerated
·         Offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations, but is seldom the material of choice for these acids
·         Excellent resistance to neutral and alkaline salt
·         Resistance to chloride induced stress corrosion cracking
·         Good mechanical properties from sub-zero temperatures up to 1020° F
·         High resistance to alkalis
 

Chemical Composition,%

Ni

Cu

Fe

Mn

C

Si

S

63.0min

28.0-34.0

2.5max

2.0max

0.3max

0.5max

0.024max

 



Mechanical PropertiesAnnealed material

Form

Tensile Min.

0.2% Yield Min.

Elongation Min.

Pipe/Tube

480 Mpa

195 Mpa

35%

 


 


Monel400 /UNS N04400 / DIN2.4360 Tube
Description:
Size: OD:6-200MM, Length: ≤6000mm, Thickness:0.8-30mm
Surface: Seamless tube
Material: Monel400 /UNS N04400 / DIN2.4360

The applications of Monel 400/UNS N04400 / DIN2.4360 Tube:
•        Marine engineering
•         Chemical and hydrocarbon processing equipment
•        Gasoline and freshwater tanks
•         Crude petroleum stills
•         De-aerating heaters
•         Boiler feed water heaters and other heat exchangers
•         Valves, pumps, shafts, fittings, and fasteners
•         Industrial heat exchangers
•         Chlorinated solvents
•         Crude oil distillation towers


 
The forms of Monel 400/UNS N04400 / DIN2.4360 :
Sheet
Plate
Pipe & Tube (welded and seamless)
Wire
Fittings
Fastener
 
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