UNS N04400 Monel 400 Nickel Alloy Steel Products
It is a solid solution alloy that may be hardened only by cold working .
It has high strength and toughness over a wide temperature range and
excellent resistance to many corrosive environment.
Alloy 400 is widely used in many fields ,especially marine and chemical processing ,
Typical applications are :
valves and pumps;
pump and propeller shafts;
marine fixtures and fasteners;
electrical and electronic components;springs;
chemical processing equipment;
gasolime and fresh water tanks;
crude petroleum stills ,
process veaaels and piping ;
boiler feed water heaters and other hear exchangers and dearating heaters.
Chemical Requirements
| Element | Composition Limit % | Product(check)Analysis Variations ,under min or over max , of the specified Limit of Element |
| Ni | 63min | 0.45 |
| Cu | 38min 34max | 0.15 0.20 |
| Fe | 2.5max | 0.05 |
| Mn | 2.0max | 0.04 |
| C | 0.3max | 0.02 |
| Si | 0.5max | 0.03 |
| S | 0.024max | 0.005 |
Mechanical Properties of Small-Diameter and Light-Wall Tubing
| Condition | Tensile Strength(Mpa) | Yield Strength min Mpa | Elongation in 2in or 50mm min% |
| Annealed | 585max | 195 | 32 |
| Half-hard | 585min | 380 | 12 |
| Full hard | 760min | 620 | 3 |
Delivery Conditions :
1. Annealed - Soft,with a dull matte finish
2. Stress Relieved - Thermally treated below the annealing tempreature to relieve the major portion of the internal stress, with a thin , light to medium-dark surface
Characteristics:
1. Good mechanical properties
2. Yield tensile strength
3.Highly resistant to chloride and sulfide stress corrosion cracking
4. Resistant to aqueous corrosion and chloride ion stress corrosion cracking
5. High temperature resistant
6. Age-hardenable with a unique property of slow aging response that permits heating and cooling during annealing without the danger of cracking.
7. Excellent welding characteristics
B535 Standard Specification for Nickel-Iron-Chromium-Silicon Alloys(UNS N08330 and N08332) Seamless Pipe and Tube
B622 Standard Specification for Nickel and Nickel-Cobalt Alloy Pipe and Tube B668 Standard Specification for UNS N08028 and N08029 Seamless Pipe and Tube
B677 Standard Specification for UNS N08925,UNS N08354,and UNS N08926 Seamless Pipe and Tube
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