JIS G3447 304TBS 304LTBS 316TBS 316LTBS Stainless Steel Steel Tube Thin Wall Pipes for Sanitary

Material

JIS G3447 specifies the requirements for stainless steel thin-walled pipes used in sanitary applications. The primary materials covered under this standard include various grades of stainless steel, particularly 304 and 316, which are known for their excellent corrosion resistance and hygienic properties.

Specification

The standard outlines the dimensions, tolerances, and mechanical properties of the thin-walled stainless steel pipes. These pipes are typically used in industries such as food processing, pharmaceuticals, and biotechnology, where cleanliness and corrosion resistance are paramount.

Key Features

• Corrosion Resistance: Excellent resistance to rust and corrosion, making it suitable for sanitary applications.
• Hygienic: Smooth surface finish that minimizes bacterial growth.
• Durability: High strength-to-weight ratio, ensuring longevity and reliability.
• Versatility: Suitable for a wide range of applications in various industries.

Chemical Composition

Mechanical Properties

Steel Grade

The primary steel grades covered under JIS G3447 are:

• 304TBS: Standard grade for general applications.
• 304LTBS: Low carbon variant for improved weldability.
• 316TBS: Offers better corrosion resistance due to the addition of molybdenum.
• 316LTBS: Low carbon variant of 316 for enhanced weldability.

Application

These stainless steel thin-walled pipes are widely used in:

• Food and beverage processing
• Pharmaceutical manufacturing
• Biotechnology applications
• Dairy and dairy product processing
• Chemical processing

Possible Alternative Grades

While JIS G3447 primarily focuses on the 304 and 316 grades, alternative grades that may be considered for similar applications include:

• AISI 201: A lower-cost alternative with moderate corrosion resistance.
• AISI 430: Ferritic stainless steel suitable for less corrosive environments.
• AISI 321: Offers better high-temperature stability compared to 304.

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