Monel 400(UNS N04400 W.Nr.2.436)

1.Monel 400 INTRODUCTION

A nickel-copper alloy with high strength and  excellent corrosion resistance in a range of  media, including sea water, hydrofluoric acid,  sulfuric acid and alkalies. Used for marine  engineering, chemical and hydrocarbon  processing equipment, valves, pumps, shafts,  fittings, fasteners and heat exchangers.

2.Monel 400 GRADE

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

4.Monel 400 MAJOR  SPECIFICATIONS

UNS N04400 BS 3072 – 3076 (NA13) 

ASTM B 127, B 163 – B 165,   B 366, B 564, B 725, B 730,   B 751, B 775, B 829 

ASME SB-127, SB-163 – SB-165,   SB-366, SB-564, SB-725,   SB-730, SB-751, SB-775,   SB-829 

AECMA Pr EN 2305 

SAE AMS 4544, 4574,   4675, 4730, 4731, 7233 

DIN 17743, 17750 – 17754 

Werkstoff Nr. 2.4360,   2.4361 

VdTüV 263 QQ-N 281

NACE MR-0175/ISO 15156

5.Monel 400 LIMITING CHEMICAL  COMPOSITION, %

Ni .........63.0 min. 

Cu.....28.0 – 34.0 

Fe.......... 2.5 max.  

Plus Co. 

Mn......... 2.0 max. 

C............ 0.3 max. 

Si...... 0.024 max. 

S............ 0.5 max

6.Monel 400 PHYSICAL CONSTANTS  AND THERMAL  PROPERTIES

Density, Ib/in3 .........................................................................0.318 

g/cm3 ......................................................................... 8.80 

Melting Point, °F.....................................................2370 – 2460 

°C.....................................................1300 – 1350 

Specific Heat, Btu/lb •°F....................................................0.102 

J/kg •°C.......................................................... 427 

Curie Temperature, °F...................................................70 – 120 

°C ....................................................20 – 50 

Coefficient of Expansion, 70 – 200°F, 10-6 in/in •°F........ 7.7 

21 – 93°C, μm/m •°C............ 13.9 

Thermal Conductivity, Btu • in/ft2• h•°F........................... 151 

W/m•°C.......................................... 21.8 

Electrical Resistivity, ohm • circ mil/ft............................. 329 

μΩ•m..............................................0.547

7.Monel 400 TYPICAL MECHANICAL  PROPERTIES

(Annealed) 

Tensile Strength, ksi..................................................................80 

MPa............................................................ 550 

Yield Strength (0.2% Offset), ksi...........................................35 

MPa..................................... 240 

Elongation, % ..............................................................................40