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Alloy – 926

As with 904L, 926 is a type of austenitic stainless steel. It has a 0.2 percent nitrogen content and a 6.5 percent molybdenum content.It was found that molybdenum and nitrogen made the halide media more resistant to pitting and crevice corrosion. Nickel and nitrogen, on the other hand, not only keep the metallographical stability, but also make the process of heating or welding less likely to separate the intergranular trend than the nickel alloy's nitrogen content. 926 has a lot of corrosion resistance in chloride ions because of its good local corrosion resistance and 25% nickel alloy content.

A lot of different tests show that after a few years, the 926 alloy doesn't get pitting or crevice corrosion. This is because the slurry of the limestone FGD system is heated to 50–68 °C and has a pH of 5–6. 926 also has good corrosion resistance in other chemical media, like sulfuric acid, phosphoric acid, acid gas, sea water, salt, organic acids, and acid gas. An alloy called Alloy 926 is a super-austenitic molybdenum stainless steel that is very resistant to a lot of corrosive environments. Molybdenum and nitrogen in its composition make it more resistant to pitting and crevice corrosion. Copper makes sulfuric acid resistant, and nitrogen makes it stronger.

Chemical Composition :

Element Content (%)
Nickel, Ni 24-26
Chromium, Cr 19-21
Molybdenum, Mo 6-7
Iron, Fe 41.69 - 50.35
Manganese, Mn ≤2
Copper, Cu 0.5-1.5
Silicon, Si ≤0.5
Phosphorous, P ≤0.03
Nitrogen, N 0.15-0.25
Carbon, C ≤0.02
Sulfur, S ≤0.01

Mechanical Properties :

Properties Metric Imperial
Tensile strength (@sheet and strip 0.5 to 6.4 mm) ≥648 MPa ≥94000 psi
Yield strength (@rod, bar, forgings > 100 mm) ≥296 MPa ≥43000 psi
Modulus of elasticity 192 GPa 27800 ksi
Elongation at break ≥35 % ≥35 %
Rockwell B hardness ≤86 ≤86


The following are some of the major applications of alloy 926:

  • Desalinization systems,
  • Pulp and paper industry,
  • Food processing equipment,
  • Chemical processing plant
  • Offshore oil and gas production
  • Power generation
Work Process

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