Process performance of chromium-nickel austenitic stainless steel 00Cr25Ni22Mo2N (2RE69)

00cr25ni22mo2n(2re69) austenitic stainless steel is a kind of oxidation and corrosion resistant steel developed on the basis of international 00Cr25Ni22Mo2N stainless steel. Due to the addition of molybdenum, its performance is higher than 00Х25Н22 (2RE68), especially suitable for parts that require high temperature and corrosion resistance performance. 2RE69 stainless steel is a kind of over-alloyed stainless acid corrosion-resistant steel with high thermal stability and a very low impurity content. It has excellent high-temperature resistance, strong corrosion resistance and good weldability.

00cr25ni22mo2n (2re69) austenitic stainless steel is widely used in the production of Petrol-chemical equipment, flue gas desulfurization and denitrification equipment and power plant equipment, as well as chemical and pharmaceutical process machinery and equipment. In addition, it is also widely used in food machinery for making thermal cutting dies, heat treatment parts, paper machinery for making pumps and other parts, filter, water treatment equipment and so on.

Due to its excellent properties of oxidation resistance, corrosion resistance and good weldability, it is mainly used in the production of chemical and flue gas purification equipments, pressure vessels and other conditions requiring oxidation and corrosion resistance. In petrochemical industry, 00Cr25Ni22Mo2N (2RE69) is often used in making containers and components in the environments with high temperature and pressure, as well as equipments in contact with some corrosive media.

The chemical composition of 00Cr25Ni22Mo2N(2RE69) stainless steel is as follows:

C: 0.05 ~ 0.08

Mn: ≤2.00

Si: ≤1.00

Cr: 17.00 ~ 22.00

P: ≤0.035

S: ≤0.030

Ni: 20.00 ~ 24.00

Mo: 1.90 ~ 3.00

N: 0.11 ~ 0.20

The above is the normalized components of 2RE69, the preset value may vary according to the needs of applications.

The mechanical properties of 00Cr25Ni22Mo2N(2RE69) stainless steel are as follows:

Tensile strength (σb): ≥520MPa

Yield strength (σs): ≥250MPa

Elongation (σ3): ≥25%

The impact toughness of 00Cr25Ni22Mo2N(2RE69) stainless steel is 95J (7.3Kgf).

The thermal processing of 00Cr25Ni22Mo2N(2RE69) stainless steel is better than 16Cr25Ni steel, but its annealed hardness is slightly worse and its corrosion resistance is better. In addition, its workability is poor due to its high metal strength and strong cold hardenability. You should pay attention to the speed and pressure when cold-forming which must be given when machining to improve its workability. Because of its better corrosion resistance and welding performance, 2RE69 stainless steel should use welding method with argon protection.

So, when selecting 00Cr25Ni22Mo2N(2RE69) austenitic stainless steel, it is necessary to consider the comprehensive operational performance of its mechanical properties, thermal processing performance, corrosion resistance and weldability. Its comprehensive performance is better than 16Cr25Ni steel, especially when used in making containers and components in terms of oxidation, corrosion and welding.

00Cr25Ni22Mo2N (2RE69) is a type of austenitic stainless steel alloy, which contains 25% chromium, 22% nickel, 2% molybdenum, and nitrogen. It offers excellent resistance to corrosion and oxidation at high temperatures, and has the added benefit of high strength and ductility.

00Cr25Ni22Mo2N (2RE69) has excellent mechanical properties and can be used in applications involving temperatures ranging from -200 to 600°C. It has a high melting point of 1450°C and excellent mechanical properties such as high tensile strength and good creep resistance. It also has good weldability and can be welded using adequate equipment and techniques.

The alloy has good formability and can be cold worked, which can further enhance its strength and ductility. This alloy is commonly used for a variety of applications including furnace components, heating elements, and chemical processing equipment. It is also used for aircraft and vehicle exhaust systems, oil and gas pipes, and small structural parts.

00Cr25Ni22Mo2N (2RE69) is a versatile all-round alloy with good mechanical and thermal properties. It is corrosion-resistant and can be used in a wide range of temperatures, making it suitable for a variety of applications. It is strong, ductile and weldable, making it an ideal choice for many industries. Due to its resistance to oxidation and corrosion, 00Cr25Ni22Mo2N (2RE69) is often the preference of climate-controlled and food-processing industries.