Special Metals MONEL™ Alloy K-500

Subcategory: Copper Alloy; Metal; Nickel Alloy; Superalloy

Key Words: DIN 17743, 17752, 17754; Werkstoff Nr. 2.4375; QQ-N-286; NACE MR -01-75, Monel Nickel-Copper Alloy, UNS N05500; BS 3072 - 3076 (NA18); ASME Boiler Code Section VIII; SAE AMS 4676; MIL-N-24549

Component    Wt. % Al 2.3 - 3.15   C Max 0.25   Cu 27 - 33

Component    Wt. % Fe Max 2   Mn Max 1.5   Ni Min 63

Component    Wt. % S Max 0.01   Si Max 0.5   Ti 0.35 - 0.85

Material Notes:
A precipitation-hardenable nickel-copper alloy that combines the corrosion resistance of MONEL alloy 400 with greater strength and hardness. It also has low permeability and is nonmagnetic to under -150°F (-101°C). Used for pump shafts, oil-well tools and instruments, doctor blades and scrapers, springs, valve trim, fasteners, and marine propeller shafts. 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	8.44 g/cc	0.305 lb/in³
Mechanical Properties
Tensile Strength, Ultimate	1100 MPa	160000 psi	Precipitation Hardened. Value at room temperature.
Tensile Strength, Ultimate at Elevated Temperature	860 MPa	125000 psi	Precipitation Hardened prior to test; 425°C
Tensile Strength, Yield	790 MPa	115000 psi	Precipitation Hardened. Value at room temperature; 0.2% offset.
Tensile Strength, Yield at Elevated Temperature	630 MPa	91400 psi	Precipitation Hardened prior to test; 0.2% offset; 425°C
Elongation at Break	25 %	25 %	Precipitation Hardened
Elongation at Break at Elevated Temperature	12 %	12 %	Precipitation Hardened prior to test.; 425°C
Electrical Properties
Electrical Resistivity	6.15e-005 ohm-cm	6.15e-005 ohm-cm
Magnetic Permeability	1.002	1.002	at 200 oersted (15.9 kA/m)
Curie Temperature	-65 °C	-85 °F
Thermal Properties
CTE, linear 20°C	13.7 µm/m-°C	7.61 µin/in-°F	20-100°C
Specific Heat Capacity	0.419 J/g-°C	0.1 BTU/lb-°F
Thermal Conductivity	17.5 W/m-K	121 BTU-in/hr-ft²-°F
Melting Point	1315 - 1350 °C	2400 - 2460 °F
Solidus	1315 °C	2400 °F
Liquidus	1350 °C	2460 °F