What is Hastelloy?

Hastelloy is one of the most corrosion-resistant nickel-based steel alloys available. Hastelloy, as compared to standard alloys, has a unique mix of features that make them substantially more corrosion resistant. At increased temperatures, the Hastelloy family of chromium/nickel/molybdenum alloys are suited for application in very harsh chemical conditions. 

Hastelloy Properties

Hastelloy is a nickel-molybdenum alloy designed to withstand high temperatures and high concentrations of reducing acids. It is not impacted by grain-boundary carbide precipitation after welding because it is not affected by grain-boundary carbide precipitation. It can be utilized even if it is welded.

Hastelloy Products

  • Hastelloy Coil
  • Hastelloy sheets
  • Hastelloy Bend
  • Hastelloy Plates
  • Hastelloy C22 Plates
  • Hastelloy B2 Pipe Tubes
  • Hastelloy Pipe
  • Hastelloy Tubes
  • Hastelloy Screw
  • Hastelloy Fasteners
  • Hastelloy Seamless Pipes 
  • Hastelloy Flanges
  • Hastelloy C276 Fittings
  • Hastelloy Hex Bars and Elbows 

We are the leading producer of Hastelloy products as mentioned above. We have a wide range of quality products such as Hastelloy Pipes, Hastelloy flanges, and more.  We customize our products as per the customer’s requirements and certifications. 

What is Monel?

Monel is largely made of nickel and copper (52-67 percent), with minor amounts of silicon, manganese, iron, and carbon. It is a type of nickel alloy that is more resistant to corrosion than pure nickel. Monel alloys are resistant to corrosion in a variety of environments, including fast-moving seawater. Cold and hot working, welding, and machining can all be used to make it.

Monel Properties

When compared to steel and monel, Monel work hardens quickly and is harder to process. It must be worked and turned at slow speeds and low feed rates. It’s typically employed in applications where the environment is extremely caustic. Monel is substantially more expensive than stainless steel. Monel alloy 400 is notable for its toughness, which can be maintained across a wide temperature range. Monel alloy 400 has outstanding mechanical characteristics at subzero temperatures. Impact resistance and a minor loss of ductility boost its hardness and strength. It does not undergo a ductile-to-brittle transition even when chilled to the temperature of liquid hydrogen.

Monel Products

  • Monel 400 Round bars and Monel 400 wires
  • Monel K500 Round bars and Monel K500 wires
  • Monel Fasteners 
  • Monel  Flanges
  • Monel Pipes
  • Monel  400 Pipes and 400 Tubes
  • Monel  Unequal Tee
  • Monel  Olets
  • Monel 400 plates and Monel 400 sheets
  • Monel K500 plates and Monel K500 sheets
  • Monel 400 plates and Monel 400 sheets Buttweld fittings
  • Monel Reducer
  • Monel Bend

We are the leading producer of Monel products as mentioned above. We have a wide range of quality products such as Monel Pipes, Monel flanges, and more.  We customize our products as per the customer’s requirements and certifications. 

Difference between Hastelloy and Monel Alloy 

Monel is a malleable, corrosion-resistant metal that is stronger than steel. This alloy group possesses good resistance to extremely corrosive acids, such as hydrofluoric and sulfuric acid, in addition to superior resistance to alkali media. Monel is particularly well suited to maritime engineering applications due to its increased copper content. Monel components function well in brine solutions because of the copper presence, which provides some resistance against biofouling. Hastelloy, on the other hand, is resistant to acidic solutions.  

How to Identify Hastelloy and Monel?

While metals have a lot in common in terms of appearance, obtaining a mill test report or a material test report is one of the most effective ways to distinguish between them. In most circumstances, manufacturers can obtain an MTR or a mill test report for the buyer as a measure of ensuring the product’s quality. A material test report, in general, is a complete test report on the material’s elemental makeup as well as its mechanical or physical qualities.

The Melting point of Hastelloy and Monel

Several alloys, unlike pure metals, do not have a single melting point. However, these alloys do have a melting range or a melting point. The substance or alloy is a mixture of solid and liquid phases throughout this temperature range. Slush is the term for this mixture of phases. Most Monel alloys have a melting point of roughly 2460 degrees Fahrenheit. Hastelloy grades have a somewhat higher melting point, around 2550 degrees Fahrenheit.


Newzel Industries have a various range of products of Hastelloy products and Monel Products. We deliver quality service to our customers and as per their needs. For more updates about our products of fasteners, flanges, pipes, forged fittings, tubes, etc check out the other blog on our website.