What Are Different Grades Of Carbon Steel Flanges?

Iron and carbon steel are the main components in the manufacturing of carbon steel flanges and end flange connectors. These flanges assist with connecting lines to valves, pressure vessels, siphons, or other gear. Grades of steel items change depending on the material ratio, for example, the carbon content. Many grades of carbon steel flanges for example The substance of the carbon range is about 1% to 2.1% in weight in the carbon steel flanges.

The increase of carbon component content makes the steel sturdier and stiffer after the heat treatment, and it also turns out to be less bendable. Without the heat treatment, higher carbon will lessen weldability.

Different Grades of Carbon Steel Flanges:


  • The Carbon Steel A105 flanges are the strong carbon metallic piping additives that you may use for valves, flanges, and fittings in pressure structures at better temperatures and ambient carrier conditions.
  • You can reliably work Carbon Steel A105 flanges below temperatures from no stages to 550 stages. They are valuable in hydrocarbon and marine engineering processes.
  • You also can utilize it in nuclear energy plants, oil and fuel line hardware, valves manufacturing, petrochemical plants, siphons manufacturing, and warmth exchangers. There are many styles of flanges like blind flanges, weld neck flanges, plate flanges, and parts more.


  • The grade of carbon metallic flanges are helpful in stainless-steel pipe flanges, strong fittings, valves, moved alloy, and diverse high-temperature administrations.
  • The Carbon Steel low chrome A182 Flanges are one of the results of the right decision for low consumption applications. These flanges really do now presently don’t get cleared out as fast. The utilization is widespread, specially withinside the paper, chemical, and oil industries.
  • The elements of this flange kind make it the maximum dependable item that remains extensive and does now no longer requires repairing rapidly after the installation. I purchased from the appropriate place, you may make sure the sturdiness of this item.


  • It is the most pressure reliant carbon steel flange material in comparison to the above three. It is stringent to the high-pressure liquid transmission of gas and oil piping. The majority of the property is steel-grade for high return administration.
  • Manufacturers need to foster all around assembled steel to withstand both high and cryogenic temperatures. With the increase in carbon content, the steel seeks heavy after the heat treatment. It also turns out to be less bendable. Assuming there is a lack of heat treatment, the chances become higher for carbon to decrease the ability to weld.


Carbon steel can get rust, yet you can forestall it using the following arrangements:

  • Oil varnishing: It assists with lubricating the carbon steel. Oil frames a defensive barrier against rust and allows them to move with grating.
  • Anti-rust painting: Painting a carbon steel flange assists with covering metal parts in a defensive layer. It assists with preventing dampness from reaching the metal and hence forestalls rust and general consumption.
  • Electric zinc-coated (Yellow/white zinc): Galvanizing or electric zinc-coating is one technique to forestall rust. It is easy to stop the flow of water and oxygen under the metal by covering it with a thin layer of zinc.

What Are Different Grades Of Carbon Steel Flanges?

by Nitron Alloys Overseas time to read: 2 min