304 Stainless Steel Pipe

304 stainless steel pipe is made of high-quality 304 stainless steel material. This material contains 18% to 20% chromium and 8% to 11% nickel, which gives the pipe excellent corrosion resistance. It can resist the erosion of many chemicals, including acids, alkalis, salts, etc., and is not easy to rust in humid environments, ensuring a long service life.

Its carbon content does not exceed 0.08%, which ensures good welding and processing performance of the pipe. Whether it is cutting, bending or welding, various complex shapes and structural requirements can be easily achieved.

Carbon (C): content ≤0.08%.

Silicon (Si): content ≤1.00%.

Manganese (Mn): content ≤2.00%.

Phosphorus (P): content ≤0.045%.

Sulfur (S): content ≤0.030%.

Chromium (Cr): content is 18.00%-20.00%. Chromium is the main element that makes stainless steel corrosion-resistant.

Nickel (Ni): content is 8.00%-11.00%. Nickel can enhance the strength and toughness of 304 stainless steel pipe.

Tensile strength σb (MPa) ≥ 515-1035

Conditional yield strength σ0.2 (MPa) ≥ 205

Elongation δ5 (%) ≥ 40

Sectional shrinkage ψ (%)≥?

Hardness: ≤201HBW; ≤92HRB; ≤210HV

Density (20℃, g/cm³): 7.93

Melting point (℃): 1398~1454

Specific heat capacity (0~100℃, KJ·kg-1K-1): 0.50

Thermal conductivity (W·m-1·K-1): (100℃) 16.3, (500℃) 21.5

Linear expansion coefficient (10-6·K-1): (0~100℃) 17.2, (0~500℃) 18.4

Resistivity (20℃, 10-6Ω·m2/m): 0.73

Longitudinal elastic modulus (20℃, KN/mm2): 193

Corrosion resistance: It has excellent resistance to corrosion from various environments, including exposure to air, water, and some chemicals. This makes it suitable for a wide range of applications.

Strength and durability: 304 stainless steel pipes are strong and can withstand mechanical stress and pressure. They have a long service life and are resistant to wear and tear.

Hygienic: The smooth surface of the pipe makes it easy to clean and maintain hygiene. It is often used in food processing, pharmaceutical, and other industries where cleanliness is crucial.

Aesthetic appeal: With its shiny finish, 304 stainless steel pipe can add an aesthetic touch to installations. It is commonly used in decorative applications as well.

Plumbing and water supply: Used for transporting water in residential, commercial, and industrial buildings.

Chemical processing: Suitable for handling various chemicals due to its corrosion resistance.

Etching method

The etching processing method is to use screen printing acid-resistant protective film on the surface of stainless steel, and then etch it with ferrous chloride liquid to form an artistic pattern.

Spraying method

The spraying method is to spray colorant particles after screen printing to form a pear-like surface and an artistic pattern.

Process

The process of the spraying art processing method of stainless steel products is: stainless steel products → screen printing → etching → alkali treatment → screen printing → oxidation coloring → alkali treatment → finished product.

The process of the etching art processing method of stainless steel products is: stainless steel products → screen printing → etching → alkali treatment → oxidation coloring → finished product.

The chemical coloring method of stainless steel does not use pigments and dyes, but soaks the stainless steel in a heated concentrated chromium sulfate solution for chemical coloring, which is characterized by good food resistance. The ink used in this processing method must have very strong acid resistance, and generally uses UV vulcanized ink with special properties that is compatible with the processing process.

Food and beverage industry: For conveying food products and beverages, ensuring hygiene and safety.

Automotive industry: In exhaust systems and some structural components.

Decorative purposes: 304 stainless steel pipe used in architecture and interior design for handrails, balustrades, and other decorative elements.

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