Monel 400 Plate ASTM B127 UNS N04400 Sheet

Monel 400 Plate

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Monel 400 is a binary alloy of nickel and copper (with trace amounts of iron, manganese, carbon, and silicon). This alloy exhibits high strength, high resistance to acidic and alkaline environments, and good ductility and thermal conductivity. Monel 400 is suitable for use in temps from subzero to 1,000°F (538°C). It can be hardened only by cold-working.

• UNS N04400

• ASTM B127

• AMS 4544

• BS 3072NA1

• BS 3076NA13

• QQ-N-281

• DIN 17750

Sheet: δ0.8-36mm; Width 650-2000mm; Length 800-12000mm
Pipe: φ6-273mm; δ1-30mm; Length 1000-8000mm
Bar: φ4-200mm; Length 2000-6000mm
Strip: 0.05*5.0-5.0*250mm

Wire: 0.01-10mm


Monel 400 Plate, Sheet & Coil Chemical Composition

Monel 4000.30 max2.00 max0.50 max0.024 max28.00 – 34.002.50 max63.00 min

Typical Properties of Monel 400

Typical properties of monel 400 are covered in the following table.





8.8 g/cm30.318lb/in3

Melting point


Co-Efficient of Expansion

7.7x10-6 in/in.°F

Modulus of rigidity

65.3 kN/mm2
9471 ksi

Modulus of elasticity

105-120 kN/mm215230-17405 ksi

Monel 400 Sheets, Plates & Coils Mechanical Properties

ElementDensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
Monel 4008.8 g/cm31350 °C (2460 °F)Psi – 80,000 , MPa – 550Psi – 35,000 , MPa – 24040 %

Hot Working

Alloy 400 Plate is a relatively soft material that is receptive to hot forming into almost any shape. The range of hot forming temperatures is 1200 – 2150°F (649 – 1177°C). For heavy reductions the recommended temperature range is 1700 – 2150°F (927 – 1177°C). Light reductions are possible with temperatures as low as 1200°F (649°C). Working at lower temperatures will result in higher mechanical properties and smaller grain size.


Equivalent Grades for 400 Monel Sheets & Plates

Monel 4002.4360N04400NW 4400NA 13МНЖМц 28-2,5-1,5NU-30MNiCu30Fe


Applications of Monel 400
Monel 400 typically finds application in:

Marine Engineering
Chemical Processing
Hydro-carbon Processing
Heat Exchangers