Process performance of chromium-nickel-manganese-nitrogen austenitic stainless steel 00Cr22Ni13Mn5Mo2N (Nitronic50)

Introduction

Nitronic50 steel, also called 00Cr22Ni13Mn5Mo2N, is a kind of austenitic stainless steel. It is often used in various components of high-temperature applications and highly corrosive environments. It contains excellent mechanical properties and a wide range of effective corrosion resistance due to its chromium-nickel-manganese-nitrogen alloy compositions.

Composition of Nitronic50 Steel

Nitronic50 steel is manufactured with an alloy composition containing chromium, nickel, manganese and nitrogen. Typical chemistries of the alloy are listed in table 1.

Table 1: Alloy composition of Nitronic50 steel

Element composition (%)

Chromium: 21.00-23.00

Nickel: 11.00-13.50

Manganese: 4.00-6.00

Nitrogen: 0.13-0.25

Phosphorus: ≤ 0.035

Silicon: ≤ 0.75

Sulfur: ≤ 0.015

Mechanical Properties of Nitronic50 Steel

Nitronic50 steel is a low carbon alloy that contains an appropriate amount of nitrogen. This alloy has excellent corrosion resistance properties and is mostly used at operating temperatures ranging from -150 °C to 950 °C. This alloy also has outstanding mechanical properties as shown in table 2.

Table 2: Mechanical properties of Nitronic50 steel

Tensile strength: 510 N/mm2

Yield strength: 325 N/mm2

Elongation: 30 – 20%

Hardness (Rockwell B): 115-130

Applications of Nitronic50 Steel

Nitronic50 steel has excellent corrosion resistance combined with the strength and formability of stainless steel. Due to its superior pitting and crevice corrosion resistance properties, Nitronic50 steel is extensively used for valves, fasteners, springs, and pump components that are used in the petrochemical, chemical, energy and marine industries. In addition, these components are often used in high-temperature operating conditions and in highly corrosive environments.

Conclusion

Nitronic50 steel is a low carbon duplex austenitic stainless steel containing chromium, nickel, manganese and nitrogen alloy. This alloy has excellent corrosion resistance and high temperature strength, making it suitable for a variety of applications, including petrochemical, chemical and marine industries. Nitronic50 steel has excellent mechanical properties and is most resistant to pitting, crevice corrosion and corrosion fatigue. It is also suitable for use in high-temperature operating conditions and highly corrosive environments.

Nitronic50 is an austenitic stainless steel alloy developed for its superior corrosion resistance and low magnetic permeability. It has good stresses ratio, high strength and ductility, as well as excellent weldability. It is characterized by excellent uniform corrosion resistance in a wide range of marine and chemical environments, such as chloride-rich acid, high temperature, and so on. Compared with other stainless steel, this grade of steel resists localized corrosion much better.

Nitronic50 is suitable for application in highly corrosive environments due to its superior corrosion resistance and low magnetic permeability. It is mainly employed for parts which could be exposed to the chloride-rich acid. As an example, these parts may include pumps, valves, and heavy-duty fittings for the sulfuric acid industry. Other common uses for Nitronic50 include oil & gas industry, food processing, and other marine applications, since the steel can withstand extended exposure to saltwater and other sea-salt environments.

Moreover, Nitronic50 is known for its superior strength, toughness, and creep resistance. In comparison to other austenitic steel, this grade is one of the most resistant to thermal shock, which gives it an advantage over other grades in many applications. Nitronic50 boast excellent weldability, making it suitable for both manual and automatic welding. Additionally, the grade has good elongation and tensile strength in low temperatures as well.

In conclusion, Nitronic50 is a high-performance, austenitic stainless steel with superior corrosion resistance. It is suitable for applications in highly corrosive environments, especially in marine and chemical industries. The material is characterized by its excellent weldability, good strength, and high ductility, as well as its low magnetic permeability. When properly heat treated, this austenitic stainless steel is extremely resistant to thermal shock and chloride-rich acids, making it a reliable choice for parts which will be exposed to harsh conditions.