Characteristics, applications, and production processes of 06Cr19Ni10 stainless steel seamless pipes

Common standards for 06Cr19Ni10 stainless steel seamless pipes include: GB/T14976 and GB/T13296.

Chemical composition of 06Cr19Ni10 stainless steel seamless pipes (%): Carbon: ≤0.08%, Silicon: ≤1.00%, Manganese: ≤2.00%, Phosphorus: ≤0.035%, Sulfur: ≤0.030%, Nickel: 8.00-11.00%, Chromium: 18.00-20.00.

Mechanical properties of 06Cr19Ni10 stainless steel seamless pipes: Tensile strength ≥520 MPa, Yield strength ≥210 MPa, Elongation (heat-treated) ≥35%. Elongation (non-heat-treated state) ≥ 25%

Production processes for 06Cr19Ni10 seamless stainless steel pipe: cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, and hot-rolled seamless steel pipe.

First, Characteristics of 06Cr19Ni10 Seamless Stainless Steel Pipe

06Cr19Ni10, commonly known as 304 stainless steel, is an austenitic stainless steel with a chromium content of approximately 18%-20% and a nickel content of approximately 8%-12%. This chemical composition gives the 06Cr19Ni10 seamless steel pipe the following key properties:

Excellent corrosion resistance: The high chromium content forms a dense oxide film on the steel pipe surface, effectively protecting it from a variety of corrosive media, such as acids, alkalis, and salts.

Good heat resistance: Even at elevated temperatures, 06Cr19Ni10 stainless steel maintains excellent mechanical properties and oxidation resistance, making it suitable for operation in high-temperature environments.

Second, Applications of 06Cr19Ni10 Seamless Stainless Steel Pipe

Petrochemical: Used for transporting various corrosive liquids and gases, such as oil, natural gas, and chemical raw materials.

Food Processing: Due to its non-toxic, harmless, and easy-to-clean nature, it is the preferred material for food processing equipment.

Medical Equipment: Its excellent biocompatibility and corrosion resistance make it a common material in medical devices such as surgical instruments and IV tubing.

Automotive Manufacturing: Used in the manufacture of components such as automotive exhaust systems and fuel systems, meeting high-temperature and corrosion-resistant requirements.

Third, Production Process of 06Cr19Ni10 Seamless Stainless Steel Pipe

Raw Material Preparation: High-quality 06Cr19Ni10 stainless steel sheets or round steel are selected as raw materials.

Heating and Piercing: After heating the raw materials to the appropriate temperature, they are pierced through a piercing machine to form a tube billet.

Hot Rolling or Cold Rolling: Depending on the required diameter and wall thickness, the tube billet is hot-rolled or cold-rolled to achieve the desired size and shape. Heat Treatment: Through heat treatment processes such as solution treatment and stabilization, the mechanical properties and corrosion resistance of steel pipes are improved.

Pickling and Passivation: This removes scale and contaminants from the steel pipe surface, forming a dense oxide film to enhance corrosion resistance.

Testing and Packaging: The steel pipes undergo various quality tests, such as hydrostatic testing and nondestructive testing, to ensure product quality. Finally, they are packaged for transportation and storage.

Fourth, Quality Standards for 06Cr19Ni10 Stainless Steel Seamless Pipes

Chemical Composition: Ensure that the chromium, nickel, and other element contents in the steel pipes meet national standards or contract requirements.

Mechanical Properties: Mechanical properties such as tensile strength, yield strength, and elongation must meet relevant standards.

Corrosion Resistance: The corrosion resistance of steel pipes is tested through methods such as salt spray testing and electrochemical corrosion testing.

Dimensional Accuracy: Dimensions such as the outer diameter, wall thickness, and length of the steel pipes must meet contract requirements and relevant standards.

Surface Quality: The steel pipe surface should be smooth, free of cracks, inclusions, and other defects.

Fifth, Market Status of 06Cr19Ni10 Seamless Stainless Steel Pipes

With the continued development of the domestic economy and the accelerated pace of industrialization, the market demand for 06Cr19Ni10 seamless steel pipes continues to increase. In particular, 06Cr19Ni10 seamless steel pipes are increasingly widely used in the petrochemical, food processing, and medical equipment industries. At the same time, with increasing environmental awareness and the implementation of energy-saving and emission-reduction policies, higher requirements are being placed on the environmental performance of 06Cr19Ni10 seamless steel pipes.

Sixth, Development Trends of 06Cr19Ni10 Seamless Stainless Steel Pipes

1. High Performance: By optimizing the chemical composition and heat treatment process, the mechanical properties and corrosion resistance of the steel pipes are enhanced to meet the most demanding industrial applications.

2. Environmental Protection and Energy Saving: Adopting more environmentally friendly production processes and materials reduces energy consumption and emissions, meeting the requirements of green development.

3. Intelligent Production: Utilizing intelligent technologies and equipment improves production efficiency and product quality, while reducing production costs.

4. Customized Services: Providing customized products and services based on specific customer needs to meet individual requirements.

In summary, as an important product in the stainless steel field, 06Cr19Ni10 seamless steel pipe has broad application prospects and huge market potential. With the continuous advancement of science and technology and the continuous development of industry, 06Cr19Ni10 seamless steel pipe will continue to develop towards high performance, environmental protection, energy saving, intelligent production, and customized services, making greater contributions to the progress and development of related industries.