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Monel 400 Alloy Nickel Alloy Round Bar Factory

09/09/2025

Monel 400 alloy nickel alloy round bar is a widely used material known for its excellent corrosion resistance in seawater, acids, and alkalis. It is a solid-solution alloy primarily composed of nickel and copper, making it both strong and ductile across a wide temperature range. When sourced directly from a factory, Monel 400 round bars are available at competitive prices with guaranteed quality standards such as ASTM B164 and ASME SB164. These bars are supplied in forged, rolled, and cold-drawn conditions, ensuring adaptability to diverse industrial applications.

Monel 400 Alloy Nickel Alloy Round Bar Factory

Chemical Composition of Monel 400 Round Bar

The alloy composition of Monel 400 ensures superior resistance to corrosion and stress cracking. Below is the typical chemical makeup:

Element Percentage (%)
Nickel (Ni) 63.0 min
Copper (Cu) 28.0 – 34.0
Iron (Fe) 2.5 max
Manganese (Mn) 2.0 max
Carbon (C) 0.30 max
Silicon (Si) 0.50 max
Sulfur (S) 0.024 max

Mechanical Properties of Monel 400 Round Bar

Monel 400 round bars deliver high strength and toughness even at sub-zero and elevated temperatures. Key mechanical properties are as follows:

Property Value
Tensile Strength 550 MPa min
Yield Strength (0.2% offset) 240 MPa min
Elongation 35% min
Hardness (Rockwell B) 65 max
Density 8.80 g/cm³
Melting Point 1300 – 1350°C

Applications of Monel 400 Alloy Round Bars

Factories supply Monel 400 round bars for industries that demand durability and corrosion resistance. Common uses include:

Industry Applications
Marine Pump shafts, seawater valves, offshore structures
Chemical Processing Heat exchangers, evaporators, chemical piping
Oil & Gas Refinery equipment, storage tanks, downhole tools
Aerospace Fuel tanks, fasteners, exhaust systems
Power Generation Turbine components, steam generator parts

Factory Supply Advantages

Purchasing Monel 400 round bars directly from a factory provides benefits including:

  • Direct factory pricing with no middleman costs
  • Customized dimensions and surface finishes (bright, black, polished)
  • Strict quality control with mill test certificates
  • Bulk order capacity for large-scale projects
  • Faster delivery with consistent stock availability

Comparison with Other Nickel Alloy Round Bars

Monel 400 bars are often compared with Inconel and Incoloy grades. The table below highlights the differences:

Alloy Main Composition Corrosion Resistance Strength Cost
Monel 400 Ni-Cu Excellent in seawater & alkalis Medium Moderate
Inconel 625 Ni-Cr-Mo-Nb Excellent in acids & high temp High High
Incoloy 825 Ni-Cr-Fe-Mo-Cu Good in sulfuric & phosphoric acids Medium Moderate

Related Questions and Answers

What is Monel 400 round bar used for?

Monel 400 round bar is used in marine, chemical, aerospace, and oil & gas industries for parts requiring corrosion resistance and strength in harsh environments.

Is Monel 400 more expensive than stainless steel?

Yes, Monel 400 is more expensive due to its high nickel and copper content, but it provides longer service life in seawater and chemical conditions.

Can Monel 400 round bars be machined easily?

Monel 400 has good machinability with proper tooling and techniques, though it work-hardens quickly, requiring slow speeds and rigid tooling for best results.

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