MONEL 400 Alloy High Performance Special Alloy Steel UNS N04400 GH2132 GH3030

Product Specification

MONEL 400 Alloy High Performance Alloys Manufacturer High Quality Alloy Steel Monel 400 UNS N04400

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.

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 1000° F, and its melting point is 2370-2460° F. However, alloy 400 is low in strength in the annealed condition so, a variety of tempers may be used to increase the strength.

Special alloy steel Monel 400 delivery state 

• Sheet
• Round bar
• Plate
• Pipe&Tube
• Fittings 

Special alloy steel Monel 400  Application 

• 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

Special alloy steel Monel 400 Characteristics 

• Resistant to seawater and steam at high temperatures
• Excellent resistance to rapidly flowing brackish water or seawater
• Excellent resistance to stress corrosion cracking in most freshwaters
• Particularly resistant 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

About Guangda for special alloy steel 

Guangda special alloy material products include high temperature alloy, corrosion resistant alloy, ultra-high strength steel, etc. High temperature alloy is mainly based on iron, nickel, cobalt, can be above 600℃ high temperature and a certain stress under the action of long-term work of metal materials, with excellent high temperature strength, good oxidation resistance, thermal corrosion resistance, fatigue and fracture toughness properties. Special alloy products have excellent high temperature tensile strength, good oxidation resistance, corrosion resistance.

The products are mainly used in aerospace, Marine petrochemical, nuclear power, petrochemical, aerospace, semiconductor chip equipment pipe valve.

Guangda has professional and completed line for the special smelting line and could provide different kinds of high temperature alloy, corrosion resistant alloy, ultra-high strength steel, etc.

HIGH TEMPERATURE ALLOY GH2132 , GH3030 , GH3128 , GH4145 , GH 4169 , GH4080

Guangda professional production line for high temperature alloy