First, the chemical composition and material properties of
022Cr17Ni12Mo2N stainless steel seamless pipe
The products of 022Cr17Ni12Mo2N stainless steel seamless pipe should meet the requirements of TSGD7002 pressure pipeline component type test rules.
Product specifications of 022Cr17Ni12Mo2N seamless stainless steel pipe: outer diameter 57mm~711mm, wall thickness: 2.0mm~80mm
Chemical composition of 022Cr17Ni12Mo2N seamless stainless steel pipe: carbon ≤0.030, silicon ≤1.00, manganese ≤2.00, phosphorus ≤0.035, sulfur ≤0.030, chromium 16.0~18.0, nickel 10.0~13.0, molybdenum 2.0~3.0, nitrogen: 0.10~0.16. Specifically, the carbon content does not exceed 0.030%, and this low carbon content significantly improves its welding performance. The silicon content does not exceed 1.00%, which helps to maintain the crystal structure of the material. The manganese content is limited to 2.00%, which affects the mechanical properties and hardness. The phosphorus content does not exceed 0.035%, which helps to improve the corrosion resistance. The sulfur content does not exceed 0.030%, which has a certain impact on the processing performance. The chromium content is between 16.00% and 18.00%, providing excellent corrosion resistance. The nickel content is between 10.00% and 14.00%, further enhancing corrosion resistance. The molybdenum content is between 2.00% and 3.00%, significantly improving resistance to sensitized intergranular corrosion. The addition of nitrogen helps improve welding performance and also helps improve the overall performance of the material.
Second, the mechanical properties and physical properties of 022Cr17Ni12Mo2N stainless steel seamless pipe
022Cr17Ni12Mo2N stainless steel seamless pipe has excellent mechanical properties, a melting point range of 1375~1450°C, and a solution treatment temperature of 1010~1150°C. Its tensile strength σb (MPa) is not less than 480, the conditional yield strength σ0.2 (MPa) is not less than 177, elongation δ5 (%) is not less than 40, cross-sectional shrinkage ψ (%) is not less than 60, and hardness meets ≤187HB; ≤90HRB; ≤200HV. These mechanical properties ensure that 022Cr17Ni12Mo2N stainless steel seamless pipe can still maintain good strength and stability under harsh environments such as high temperature and high pressure. In addition, the material also has good work hardening, weak magnetism after processing, and no magnetism in the solid solution state, which facilitates its use in specific applications.
Third, the production process and quality control of 022Cr17Ni12Mo2N stainless steel seamless pipe
The production process of 022Cr17Ni12Mo2N stainless steel seamless pipe mainly includes round steel preparation, heating, hot rolling piercing, head cutting, pickling, grinding, lubrication, cold rolling, degreasing, and finished product inspection. Each step strictly follows the production process standards to ensure the quality and performance of the final product. In the preparation stage of round steel, high-quality round steel that meets the standards is selected as raw material to ensure the initial quality of the product. The temperature needs to be precisely controlled during the heating process to ensure that the organizational structure and performance of the material are not affected. Hot rolling piercing is one of the key steps in the production of seamless steel pipes, which directly affects the dimensional accuracy and surface quality of the product. The cutting process requires precise control of the cutting length and cutting quality to ensure the overall performance of the product. Pickling can remove the oxide scale and impurities on the surface and improve the surface quality of the product. The grinding process makes the surface smoother to meet the requirements of subsequent processing. Lubrication can reduce friction and wear during cold rolling, improve processing efficiency, and product quality. Cold rolling is the last key process in the production of seamless steel pipes, which directly affects the dimensional accuracy and performance of the product. The degreasing process needs to thoroughly remove the grease and impurities generated during the cold rolling process to ensure the cleanliness of the product. Finished product inspection includes multiple aspects of appearance quality, dimensional accuracy, mechanical properties, and chemical composition to ensure that the product meets relevant standards and customer requirements.
Fourth, the application field and market demand of 022Cr17Ni12Mo2N stainless steel seamless pipe
022Cr17Ni12Mo2N stainless steel seamless pipe is widely used in many fields due to its unique properties. In the chemical industry, due to its excellent corrosion resistance, the material is widely used to manufacture various corrosion-resistant equipment, such as reactors, storage tanks, pipelines, etc. In the petroleum industry, the material is used to manufacture oil well pipes, oil pipelines, and oil refining equipment, which can withstand high temperature and high-pressure environments to ensure the safety and reliability of oil extraction and processing. In marine engineering, 022Cr17Ni12Mo2N stainless steel seamless pipes show good seawater corrosion resistance and are used in marine drilling platforms, submarine oil and gas pipelines, etc. In addition, the material is also commonly used to manufacture pressure vessels, steel plates, thin plates, steel strips, etc., to meet the needs of general industrial use. In industries such as papermaking, pharmaceuticals, and high-pressure equipment, this stainless steel also plays an important role and is used to manufacture various corrosion-resistant and high-strength components. With the continuous advancement of technology and the continuous expansion of the market, the application prospects of 022Cr17Ni12Mo2N stainless steel seamless pipe will be broader. Especially in the fields of new energy, environmental protection, high-end equipment manufacturing, etc., the demand for this material will continue to grow.
Conclusion and Prospect
In summary, as a high-performance industrial material, 022Cr17Ni12Mo2N stainless steel seamless pipe has shown its unique value and broad application prospects in many fields. This material has excellent chemical composition and mechanical properties, and can meet the use requirements in harsh environments such as high temperature and high pressure. In the future, 022Cr17Ni12Mo2N stainless steel seamless pipe will continue to play its unique advantages and provide strong support for the development of various industries. At the same time, enterprises should also strengthen technological innovation and product research and development, and continuously improve product quality and performance to meet changes in market demand. I believe that in the near future, 022Cr17Ni12Mo2N stainless steel seamless pipe will show its unique charm and value in more fields.
Threeway Steel is known as a professional supplier engaged in manufacturing and distributing a wide range of steel pipe, and our headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
Threeway Steel is known as a professional supplier engaged in designing, manufacturing and distribution of a wide range of steel products with the headquarter located the central part of China – Hunan and six associated factories throughout China.
