321 Stainless Steel Chemical Composition & Mechanical Properties

1. What is the titanium content range in 321? 0.15-0.80%, which is sufficient to bind all carbon in the alloy.

2. Why is carbon content limited in 321? Carbon ≤0.08% reduces the risk of chromium carbide formation, enhancing corrosion resistance.

3. What is the yield strength of 321 at room temperature? ≥205 MPa in the annealed condition.

4. Does 321 contain molybdenum? No, unlike 316, 321 lacks molybdenum and is not optimized for chloride corrosion.

5. How does temperature affect 321's tensile strength? Strength decreases gradually above 500°C but remains stable for continuous service.