321 VS 321H VS 1.4541 in Chemical Composition
ASME SA 213 TP321 321H vs EN 10216-5 1.4541 Chemical Composition
| Grade | 321 | 321H | EN 10216-5 1.4541 |
| UNS Designation | S32100 | S32109 | |
| Carbon (C) Max. | 0.08 | 0.04–0.10 | 0.08 |
| Manganese (Mn) Max. | 2.00 | 2.00 | 2.00 |
| Phosphorous (P) Max. | 0.045 | 0.045 | 0.040 |
| Sulphur (S) Max. | 0.03 | 0.03 | 0.015 |
| Silicon (Si) Max. | 1.00 | 1.00 | 1.00 |
| Chromium (Cr) | 17.0–20.0 | 17.0–20.0 | 17.0-19.0 |
| Nickel (Ni) | 9.0–12.0 | 9.0–12.0 | 9.0–12.0 |
| Molybdenum (Mo) | — | — | |
| Nitrogen (N) | – | – | |
| Iron (Fe) | Bal. | Bal. | Bal. |
| Other Elements | Ti=5(C+N) to 0.70% | Ti=4(C+N) to 0.70% | Ti=5(C+N) to 0.70% |
General Properties
Chemical Composition
Resistance to Corrosion
Physical Properties
Mechanical Properties
Heat Treatment
Fabrication
Elevated Temperature Oxidation Resistance
Oxidation Behavior of Type 321 Stainless Steel Tube
321 S32100 Chemical Composition Comparison Table