321 Stainless Steel for Petrochemical Industry

1. What petrochemical equipment uses 321? Heat exchanger tubes, catalytic reactor internals, and high-temperature pipelines.

2. Can 321 handle high-pressure hydrocarbons? Yes, when properly welded and sized, it withstands moderate to high pressures.

3. Is 321 suitable for sulfur-containing petrochemical streams? Use cautiously; sulfur >0.1% may cause sulfidation corrosion.

4. How long is 321's service life in petrochemical applications? 5-10 years under proper operating conditions.

5. Why choose 321 over 304 in petrochemicals? 321's anti-sensitization ensures durability in welded, high-heat systems.

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