Monel 400 (N04400)

General Properties

Monel 400 (N04400) is a nickel-copper alloy used for offshore, marine and chemical processing. As a solution strengthened material, Monel 400 displays good strength, toughness and corrosion resistance at temperatures up to 538℃.

It's corrosion resistance is particular strong in flowing brackish water or seawater. Monel 400 exhibits good resistance to hydrofluoric and dilute non-oxidising acids, alkalis and salts. It resists corrosion by dry chlorine and hydrogen chloride and is not susceptible to stress corrosion cracking. Monel 400 (N04400) is readily cold formable and weldable.

Chemical Composition (%)

Grade Ni Fe Cu C Mn S Si
Monel 400 63.0-70.0 2.5 max 28.0-34.0 0.3 max 2.0 max 0.024 max 0.5 max

Mechanical Properties

Grade Density Yield Strength (0.2% offset) Ultimate Tensile Strength Elongation in 2 inches Hardness
KSI MPa KSI MPa % Brinell (3000kg) Rockwell HRC
Monel 400 8.8 g/cm3 25.0-28.0 Min 170-195 Min 70 Min 480 Min 35 Max - 35 Max

QUKEN offers Monel 400 products in the following forms:

Monel 400 Products Standard Size Available (mm)
Monel 400 Sheets ASME SB127 0.03~2*2~350*C
Monel 400 Plates ASME SB127 2~25*1000~1500*2000~6000
Monel 400 Flanges ASME SB564 Customized
Monel 400 Seamless pipes/tube ASME SB165/SB163/SB829 φ2~120*0.3~16*13000 Max
Monel 400 Welded pipes/tube ASME SB725/SB730/SB751/SB775 φ10~630*1~16*13000 Max
Monel 400 Bars ASME SB164/AMS 4675 φ3~300*100~6000
Monel 400 Wires ASME SB164/AMS 4675 φ0.01~3*C
Monel 400 Pipe fittings ASME B366 Customized
Monel 400 Forgings ASME SB564 Customized