Round Bar

Round Bar

Monel 400 round bar is a copper nickel based alloy which possesses great mechanical properties and high tensile and ductile strength. Monel alloy has resistance to corrosive environments and is highly used in seawater applications.

Chemical composition

GRADE

 

C

Ni

Fe

Cu

Si

Mg

S

Monel 400

MIN

63

28

MAX

0.3

70

2.5

34

0.5

2

0.024

Monel 400 offers excellent resistance to hydrochloric & hydrofluoric acids when they are de-aerated. Monel 400 alloy also has excellent resistance to stress corrosion cracking and resistance to pitting and crevice corrosion under sea water application.

Properties

Monel 400 round bar show high strength and excellent corrosion resistance in a range of acidic and alkaline environments and it’s especially suitable for reducing conditions and they can also withstand a fire in pure oxygen.  

Mechanical Properties

Grade

Tensile Strength

Yield Strength

Elongation

[MPA]

[MPA]

(% in 50mm) min

Monel 400

580

245

20

Monel 400 bars can be readily joined by conventional processes and procedures. The welding method used for Monel 400 round bar may be Shield Metal arc welding (SMAW), Gas Tungsten Arc Welding (GTAW),  Gas Metal Arc Welding (GMAW).

Physical Properties

Grade

Density (g/cm3)

Elastic Modulus (GPa)

Co-eff of Thermal Expansion (μm/m-k)

Thermal Conductivity (W/m.K)

Electrical Resistivity (μΩ.m)

21-93°C

at 23°C

at 93°C

Monel 400

8.8

179

31.9

21.8

0.51

8.50

Monel Alloy 400 is immune to steam and seawater even at extreme temperature conditions. Also Monel Alloy 400 can retain their strength and toughness even when they are exposed to caustic and salt solutions. Monel Alloy 400 bar can retain their strength though they come across brackish water, also in freshwaters.

Specification

The Specification for Monel 400 round bar as per astm Standard is ASTM B 164/ASME SB-164, they are categorised into different form and shape such as Monel 400 Round Bar, Rod, Channel Bar, T-Bar, Flat Bar, Blocks, Square, bar, Triangle, Threaded, Hex (A/F), Profiles, Half Ingot, Billet, I/H Bar, etc.

When considering wrought stainless round bars, material shall be furnished in the following way such as  Hot-worked, Hot-worked and Annealed, Hot-worked- Annealed and cold worked or Hot-worked-Annealed and heat treated.

Round bars depending upon their treatment and their use and application they can also be available in different surface finishes such as Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish, 2B, 2D, etc.

Applications

  • Packed columns
  • Pressure vessels and reactors
  • Brine heaters
  • Heat exchangers
  • Salt production equipment
  • Pump and valve components
  • Pipe work and pipe spools