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. % C Max 0.3   Cu 28 - 34   Fe Max 2.5   Mn Max 2   Ni Min 63   S Max 0.024   Si Max 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 Properties	Metric	English	Comments
Density	8.8 g/cc	0.318 lb/in³
Mechanical Properties
Tensile Strength, Ultimate	550 MPa	79800 psi	Annealed
Tensile Strength, Ultimate at Elevated Temperature	450 MPa	65300 psi	Annealed prior to test; 425°C
Tensile Strength, Yield	240 MPa	34800 psi	Annealed
Tensile Strength, Yield at Elevated Temperature	170 MPa	24700 psi	Annealed prior to test; 425°C
Elongation at Break	48 %	48 %	Annealed prior to test.
Elongation at Break at Elevated Temperature	50 %	50 %	Annealed prior to test.; 425°C
Electrical Properties
Electrical Resistivity	5.47e-005 ohm-cm	5.47e-005 ohm-cm
Curie Temperature	35 °C	95 °F	Range is 20-50°C
Thermal Properties
CTE, linear 20°C	13.9 µm/m-°C	7.72 µin/in-°F	20-100°C
Specific Heat Capacity	0.427 J/g-°C	0.102 BTU/lb-°F
Thermal Conductivity	21.8 W/m-K	151 BTU-in/hr-ft²-°F
Melting Point	1300 - 1350 °C	2370 - 2460 °F
Solidus	1300 °C	2370 °F
Liquidus	1350 °C	2460 °F