Monel  K-500(UNS N05500 W.Nr.2.4375)

1.Monel K-500 INTRODUCTION

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 temperatures as low as -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.

2.Monel K-500 GRADE

Pipe, tube, sheet, strip, plate, round bar, flat bar, forging  stock, hexagon and wire.

4.Monel K-500 MAJOR  SPECIFICATIONS

UNS N05500 BS 3072 – 3076 (NA18) 

ASTM B 865 

SAE AMS 4676 

DIN 17743, 17752 –17754 

Werkstoff Nr. 2.4375 

QQ-N 286 

NACE MR-0175/ISO 15156 

ISO 6208, 9723 – 9725 

ASME Code Case 1192

5.Monel K-500 LIMITING CHEMICAL  COMPOSITION, %

Ni .........63.0 min.

Cu..... 27.0 – 33.0 

Al ......2.30 – 3.15 

Plus Co. 

Ti ......0.35 – 0.85 

Fe.......... 2.0 max. 

C..........0.25 max. 

Mn......... 1.5 max. 

S..........0.01 max.  

Si........... 0.5 max.

6.Monel K-500 PHYSICAL CONSTANTS  AND THERMAL  PROPERTIES

Density, Ib/in3 .........................................................................0.305 

g/cm3 ......................................................................... 8.44 

Melting Point, °F.....................................................2400 – 2460 

°C.....................................................1315 – 1350 

Specific Heat, Btu/lb •°F....................................................0.100 

J/kg •°C.......................................................... 419 

Curie Temperature, °F.......................................................... -150 

°C ......................................................... -100 

Permeability at 200 Oersted (15.9 kA/m)....................1.002 

Coefficient of Expansion, 70 – 200°F, 10-6 in/in •°F........ 7.6 

21 – 93°C, μm/m •°C............ 13.7 

Thermal Conductivity, Btu • in/ft2• h•°F........................... 121 

W/m•°C...........................................17.5 

Electrical Resistivity, ohm • circ mil/ft............................. 370

μΩ•m..............................................0.615 

Young's Modulus at RT, 103  ksi ..............................................26

7.Monel K-500 TYPICAL MECHANICAL  PROPERTIES

(Precipitation Hardened) 

Tensile Strength, ksi............................................................... 160 

MPa..........................................................1100 

Yield Strength (0.2% Offset), ksi........................................ 115 

MPa..................................... 790 

Elongation, % ..............................................................................20