Physical properties of chromium-nickel austenitic stainless steel 00Cr25Ni22Mo2N (2RE69)

Physical Properties of 2RE69, 00Cr25Ni22Mo2N Austenite Stainless Steel

Austenitic stainless steels, such as 2RE69 00Cr25Ni22Mo2N, are one of the most significant families of stainless steels for many reasons. As compared to other stainless steels, austenitic stainless steels offer greater chemical resistance, higher formability, and greater weldability. One of the most recent advancements in this steel family is the alloy 2RE69 00Cr25Ni22Mo2N, which is an austenitic stainless steel that resists general corrosion better than other grades, while exhibiting higher strength and hardness. This article highlights some of the defining physical properties of 2RE69 00Cr25Ni22Mo2N stainless steel that make it such a desirable material for a wide range of applications.

Appearance

The first noticeable property of 2RE69 00Cr25Ni22Mo2N austenitic stainless steel is its appearance. 2RE69 00Cr25Ni22Mo2N stainless steel is a non-magnetic material with excellent surface finish. Its surfaces are smooth, reflective, and bright.

Composition

2RE69 00Cr25Ni22Mo2N stainless steel is an alloy made of iron, chromium, nickel, molybdenum, and nitrogen. Iron is the most significant element in the alloy, making up about 70 percent of its composition. Chromium and nickel, on the other hand, make up about 18-20 percent each of the alloys composition.Lastly, molybdenum and nitrogen make up the remaining minor parts of the alloy, comprising only 0.6-0.8 percent and 0.2 percent of the alloy respectively.

Density

2RE69 00Cr25Ni22Mo2N stainless steel has a density of 7.93 g/cm3, yielding a higher density than other stainless steel grades. This property allows the alloy to be a good heat conductor and have lower resistance to rock fragmentation.

Corrosion Resistance

2RE69 00Cr25Ni22Mo2N stainless steel has outstanding resistance to general corrosion. The combination of chromium and nickel present in the alloy greatly contributes to this property. This resistance to corrosion further increases when the alloy is exposed to salt water in which conditions the alloy shows very little signs of pitting, crevice corrosion, or stress corrosion cracking.

Tensile Strength

Tensile strength is a measure of the maximum load that a material can withstand without breaking elongation. The higher the tensile strength, the more suitable the alloy is for use in high stress applications. The tensile strength of 2RE69 00Cr25Ni22Mo2N steel is 620 MPa.

Hardness

2RE69 00Cr25Ni22Mo2N stainless steel has a Brinell hardness ranging from 215 to 313. This high hardness makes the alloy suitable for use in demanding applications where greater strength and deformation resistance is required.

Machinability

The machinability of 2RE69 00Cr25Ni22Mo2N stainless steel is slightly lower than that of 18-8 stainless steel, with a machinability rating of 75%. This relatively high machinability of the alloy makes it suitable for use in the manufacture of components with complex shapes.

Weldability

2RE69 00Cr25Ni22Mo2N stainless steel has excellent weldability and can be welded using all conventional welding methods such as MIG, TIG, and SMAW. For increased weldability, it is recommended to use low-heat welding processes such as SMAW.

Conclusion

2RE69 00Cr25Ni22Mo2N stainless steel is a high-performance alloy that offers superior corrosion resistance and excellent weldability. It provides an excellent combination of strength and hardness, making it suitable for a variety of applications. With its impressive physical properties, 2RE69 00Cr25Ni22Mo2N stainless steel is a great choice for those looking for a dependable, durable, and long-lasting steel.

00Cr25Ni22Mo2N(2RE69) stainless steel is austenitic stainless steel with superior corrosion resistance. It is suitable for severe corrosive environments. This alloy has outstanding resistance to pitting and crevice corrosion, and is mainly used in chemical and petrochemical equipment, architectural structures and oil and gas well pipelines.

The chemical composition of 00Cr25Ni22Mo2N(2RE69) stainless steel is 0.02-0.05% C, 25.5-27% Cr, ≥20.5% Ni, 2.0-2.5% Mo, 0.22-0.33% Mn and N is about 0.4%. The physical properties of 00Cr25Ni22Mo2N(2RE69) stainless steel are as follows:

• Densit: 7.77 g/cm3

• Elongation: ≥50%

• Hardness: ≤200HB

• Tensile Strength: 700-870 N/mm2

• Yield Strength: ≥520 N/mm2

The corrosion resistance of 00Cr25Ni22Mo2N(2RE69) stainless steel is excellent. It can resist corrosion in various organic and inorganic acids. When used in environments such as seawater, chloride stress corrosion and intercrystalline corrosion have no effect on the performance of this stainless steel. Due to high chromium content, it has strong corrosion resistance to oxidizing environment and can withstand high temperature oxidation up to 980℃ without being damaged.

Besides, this alloy has good weldability and good formability, and can be machined in a wide range of conditions. In addition, its mechanical properties remain stable even at cryogenic temperatures.

To sum up, 00Cr25Ni22Mo2N(RE69) stainless steel is an austenitic stainless steel with excellent corrosion resistance, weldability and formability. It has the appropriate mechanical properties and can be used in the manufacture of chemical and petrochemical equipment, architectural structures, and oil and gas wells.