ASTM B127 UNS N04400 Nickel-Copper Alloy Plate and Sheet
Grade: UNS N04400, Monel 400, EN 2.4360, NiCu30Fe
Features
ASTM B127 Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip
Chemical Composition (wt. %)
| Element | Alloy N04400 Composition |
|---|---|
| Nickel (Ni) | min 63.0 |
| Copper (Cu) | 28.0 to 34.0 |
| Iron (Fe) | max 2.5 |
| Manganese (Mn) | max 2.0 |
| Carbon (C) | max 0.3 |
| Silicon (Si) | max 0.5 |
| Sulfur (S) | max 0.024 |
Mechanical Properties for Plate, Sheet, and Strip (All Thicknesses and Sizes Unless Otherwise Indicated)
| Condition (Temper) | Tensile Strength min (psi [MPa]) | Yield Strength (0.2 % offset) min (psi [MPa]) | Elongation in 2 in. or 50 mm or 4D min % | Rockwell Hardness (B Scale) |
| Hot-Rolled Plate (Annealed) | 70,000 (485) | 28,000 (195) | 35 | – |
| Hot-Rolled Plate (As-rolled) | 75,000 (515) | 40,000 (275) | 25 | – |
| Hot-Rolled Sheet (Annealed) | 70,000 (485) | 28,000 (195) | 35 | – |
| Cold-Rolled Sheet (Annealed) | 70,000 to 85,000 (485 to 585) | 28,000 (195) | 35 | – |
| Cold-Rolled Sheet (Quarter-hard) | – | – | – | 73 to 83 |
| Cold-Rolled Sheet (Half-hard) | 100,000 (690) | 90,000 (620) | 2 | 82 to 90 |
| Cold-Rolled Strip (Annealed) | 70,000 to 85,000 (485 to 585) | 28,000 (195) | 35 | – |
| Cold-Rolled Strip (Skin hard) | – | – | – | 68 to 73 |
| Cold-Rolled Strip (Quarter-hard) | – | – | – | 73 to 83 |
| Cold-Rolled Strip (Half-hard) | – | – | – | 82 to 90 |
| Cold-Rolled Strip (Three-quarter-hard) | – | – | – | 89 to 94 |
| Cold-Rolled Strip (Hard) | 100,000 (690) | 90,000 (620) | 2 | – |
| Cold-Rolled Strip (Spring temper) | – | – | – | 98 min |
- Yield strength requirements do not apply to material under 0.020 in. (0.51 mm) in thickness.
- Rockwell or equivalent hardness conversions see Hardness Conversion Tables E 140. Caution should be observed in using the Rockwell test on thin material as the results may be affected by specimen thickness.
Technical Specifications
| Specification | Value |
| Standard | ASTM B 127, ASME SB 127 (Plate, Sheet, and Strip), SAE AMS 4544 (Sheet, Strip, and Plate), DIN 17750 (Plate, Strip and Sheet, BS3072 NA13 (Sheet and Plate), BS3073 NA13 (Strip) |
| Grade | UNS N04400, MONEL 400, EN 2.4360, NiCu30Fe |
| Type | Plate, Sheet, Strip |
| Thickness | 1-50mm |
| Length | 1000 – 12000mm |
| Width | 500 – 2500mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Bend Test (ASTM E290), Impact Test (ASTM E23), Intergranular Corrosion Test (Various ASTM Standards), Specific Corrosion Testing |
Packing
They are packed on plywood pallets or in plywood boxes according to the customer’s requirements.
Application
Seawater piping and equipment: Nickel-copper alloys are extensively used in seawater piping systems, pumps, valves, and other equipment due to their exceptional resistance to seawater corrosion.
Boat and ship hulls: These are used in constructing boat and ship hulls, propeller shafts, and other components exposed to seawater.
Desalination plants: Their resistance to seawater corrosion and biofouling makes them suitable for components in desalination plants.
Handling corrosive fluids: Employed equipment and piping systems that handle aggressive chemicals, such as hydrochloric acid, sulfuric acid, and various salt solutions.
Heat exchangers: Their corrosion resistance and good thermal conductivity make them suitable for heat exchangers operating in harsh environments.
Offshore platforms and pipelines: Their resistance to seawater corrosion and sour gas (containing hydrogen sulfide) makes them suitable for offshore structures and pipelines.
Downhole equipment: Used in specific downhole applications requiring resistance to corrosion and stress cracking.
Valve and pump components: Their corrosion resistance and good mechanical properties make them suitable for valve and pump components in various industries.
Musical instruments: Nickel-copper alloys, particularly strings, are used in the construction of musical instruments, which are renowned for their unique tonal qualities.
Eyeglass frames: Their corrosion resistance and attractive appearance make them suitable for eyeglass frames.
Specific Alloy Grades and Applications
Monel 400 (UNS N04400): The most common nickel-copper alloy, it is known for its excellent resistance to seawater corrosion and a wide range of chemicals. It is used extensively in marine, chemical processing, and oil and gas applications.
Monel K-500 (UNS N05500): Similar to Monel 400 but with added aluminum and titanium, providing increased strength and hardness. It is used in applications requiring higher mechanical properties, such as pump shafts and valve components.
