Special Metals MONEL Alloy 400


Subcategory: Copper Alloy; Metal; Nickel Alloy; Superalloy

Key Words: AFNOR NU30; SAE AMS 4544, 4574, 4575, 4675, 4730, 4731, 7233; DIN 17743, 17750 - 17754, ASME SB-127, SB-163 - SB-165, SB-564, Boiler Code Sections III, IV, VIII, IX; AECMA Pr EN 2305, Monel Nickel-Copper Alloy, UNS N04400; BS 3072-3076 (NA 13); ASTM B 127, B 163 - B 165, B 564, Werkstoff Nr. 2.4360, 2.4361; VdTUV 263; MIL-T-1368, MIL-T-23520, MIL-N-24106; QQ-N-281; NACE MR-01-75

Component   Wt. %
CMax 0.3 
Cu28 - 34 
FeMax 2.5 
MnMax 2 
NiMin 63 
SMax 0.024 
SiMax 0.5 

Material Notes:
Nickel content above includes cobalt. A nickel-copper alloy with high strength and excellent corrosion resistance in a range of media including sea water, hydrofluoric acid, sulfuric acid, and alkalis. Used for marine engineering, chemical and hydrocarbon processing equipment, valves, pumps, shafts, fittings, fasteners, and heat exchangers. Standard product forms are round, hexagon, flats, forging stock, pipe, tube, plate, sheet, strip, and wire.

Data provided by the manufacturer, Special Metals.

Physical PropertiesMetricEnglishComments
Density8.8 g/cc0.318 lb/in 

Mechanical Properties
Tensile Strength, Ultimate550 MPa79800 psi Annealed
Tensile Strength, Ultimate at Elevated Temperature450 MPa65300 psi Annealed prior to test; 425C
Tensile Strength, Yield240 MPa34800 psi Annealed
Tensile Strength, Yield at Elevated Temperature170 MPa24700 psi Annealed prior to test; 425C
Elongation at Break48 %48 % Annealed prior to test.
Elongation at Break at Elevated Temperature50 %50 % Annealed prior to test.; 425C

Electrical Properties
Electrical Resistivity5.47e-005 ohm-cm5.47e-005 ohm-cm 
Curie Temperature35 C95 F Range is 20-50C

Thermal Properties
CTE, linear 20C13.9 m/m-C7.72 in/in-F 20-100C
Specific Heat Capacity0.427 J/g-C0.102 BTU/lb-F 
Thermal Conductivity21.8 W/m-K151 BTU-in/hr-ft-F 
Melting Point1300 - 1350 C2370 - 2460 F 
Solidus1300 C2370 F 
Liquidus1350 C2460 F 


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