SS304 Stainless Tube
SS304 Stainless Tube
SS304 stainless steel tube is a versatile and widely used austenitic stainless steel product known for its excellent corrosion resistance, formability, and weldability. It is part of the 300 series of stainless steels and is commonly used in various industries, including food processing, chemical, pharmaceutical, automotive, and architectural applications.

Advantages
1. Excellent Corrosion Resistance: Resists oxidation, acids, and mild chemical exposure.Ideal for food processing, dairy, and beverage industries due to rust resistance.Performs well in humid and mildly corrosive environments.
2. High Strength & Durability: SS304 stainless tube maintains structural integrity under high pressure and temperature variations.
3. Superior Weldability & Fabrication: Can be welded using TIG, MIG, and resistance welding without significant cracking.Easy to bend, form, and machine for custom applications.
4. Temperature Resistance: Withstands high temperatures.Suitable for heat exchangers, boilers, and exhaust systems.
5. Hygienic & Easy to Clean: Smooth surface prevents bacterial growth, making it ideal for medical, pharmaceutical, and food industries.
6. Cost-Effective Compared to Higher Grades: More affordable than SS316 while still offering strong corrosion resistance for general applications.
7. Versatility: Used in chemical processing, automotive, construction, HVAC, and water treatment systems.
MATERIAL COMPOSITION:
Carbon (C): ≤0.08%
Manganese (Mn): ≤2%
Phosphorus (P): ≤ 0.0450%
Sulfur (S): ≤ 0.030%
Chromium (Cr): 18 – 20%
Nickel (Ni): 8 – 10.50%
Iron (Fe): Balance
MECHANICAL Properties:
Tensile Strength: ~515 MPa
Yield Strength: ~205 MPa
Elongation: ~40%
Delivery Condition: SR,BK, BK+S, GBK, NBK
ID Size : 20mm – 1500mm
Length: max 16m
Type: Seamless, Hot Rolled, Cold Rolled, Cold Drawn
Service: Surface Polished,Chrome Plated,etc.
Straightness: ≤ 0.5/1000
Roughness: as request
Tolerance INT: H7,H8,H9,as request
Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends.
Packing: Bundle with steel strip and PE sheet or Plywood case
Delivery Conditions
Designation | Symbol | Description |
Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and thus have a rather high resistance to deformation. |
Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g.bending,expanding). |
Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process.Subject to appropriate processing conditionsthe increase in the residual stresses involved enables both forming and machining to a certain degree. |
Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere |
Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |


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