321 Cold Rolled Stainless Steel Strip For Precision Tube

Application scenarios
• High-temperature precision instruments: such as the connecting pipes of laboratory high-temperature reactors and high-temperature fluid conveying pipes in the aerospace field, which need to take into account high-temperature stability and dimensional accuracy to ensure equipment sealing and operation accuracy.
• Heat exchange equipment components: Precision coils in condensers and evaporators, using the high-temperature corrosion resistance of 321 and the efficient heat transfer characteristics of precision tubes to improve heat exchange efficiency.
• Industrial valves and instruments: As protective sleeves for valve cores and instrument sensors, they maintain structural stability and measurement accuracy in high-temperature and slightly corrosive media (such as steam and hot oil).
• Special fluid transportation: Transporting high-temperature and clean media (such as high-temperature steam in the food industry and high-temperature clean water in the pharmaceutical industry), relying on high precision and corrosion resistance to avoid medium contamination or leakage.

Differences from other stainless steel precision tubes
• Compared with 304 precision tubes: 321 has better resistance to intergranular corrosion in high-temperature environments above 500°C, and is not prone to material degradation due to high temperature in long-term use, and is suitable for high-temperature conditions; 304 is more cost-effective at room temperature and suitable for ordinary environments.
• Compared with 316 precision tube: 316 contains molybdenum, which has stronger resistance to chloride ion corrosion and is suitable for strong corrosion environments such as humidity and salt spray; 321 focuses on high temperature stability, has more advantages in high temperature scenes without strong corrosion, and has relatively low cost.

In summary, 321 stainless steel precision tube is an ideal choice for special scenes with high temperature, dimensional accuracy and intergranular corrosion resistance. Its performance characteristics make it have irreplaceable application value in high-end industrial fields.