Stainless Steel Grades Composition and Characteristics
| Grade | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Carbon (C) | Others (Approx.) | Major Characteristics |
|---|---|---|---|---|---|---|
| 304 | 18% | 8% | – | ≤ 0.08% | Fe ~74% | Versatile, excellent corrosion resistance, suitable for a wide range of applications. |
| 316 | 16% | 10% | 2% | ≤ 0.08% | Fe ~72% | Enhanced corrosion resistance, especially against chlorides. Ideal for harsh environments. |
| 430 | 16% | – | – | ≤ 0.12% | Fe ~83% | Good corrosion resistance, cost-effective, for less demanding applications. |
| 310 | 25% | 20% | – | ≤ 0.25% | Fe ~55% | Excellent high-temperature properties, good ductility, and weldability. |
| 317 | 18% | 13% | 3% | ≤ 0.08% | Fe ~66% | Higher corrosion resistance, suitable for harsh chemical environments. |
| 321 | 17% | 9% | – | ≤ 0.08% | Ti ~5x(C+N), Fe ~73% | Good resistance to intergranular corrosion, stable against chromium carbide formation. |
| 410 | 12% | – | – | ≤ 0.15% | Fe ~88% | Good strength, moderate corrosion resistance. Suitable for mild corrosive environments. |
| 2205 | 22% | 5% | 3% | ≤ 0.03% | Fe ~70% | Excellent resistance to stress corrosion cracking, pitting, and crevice corrosion. |
| 904L | 20% | 25% | 4.5% | ≤ 0.02% | Fe ~50% | Superior corrosion resistance, particularly in sulfuric, phosphoric, and acetic conditions. |
| 347 | 17% | 9% | – | ≤ 0.08% | Nb ~10x(C+N), Fe ~74% | Excellent resistance to intergranular corrosion, good in high-temperature environments. |
| 446 | 23% | – | – | ≤ 0.20% | Fe ~77% | Good oxidation resistance, suitable for high-temperature applications. |
| duplex 2207 | 25% | 7% | 4% | ≤ 0.03% | Fe ~64% | High strength, excellent corrosion resistance, good for challenging environments. |
Note:
- The “Others” column includes Iron (Fe) and may also include trace amounts of other elements. The percentages given are typical values and can vary slightly based on specific alloy formulations and manufacturing processes.
- Some grades have specific elements like Titanium (Ti) or Niobium (Nb) indicated, which are crucial for their unique properties.
This table provides a comprehensive overview suitable for professional B2B communication, aligning with SteelMerge’s focus on quality and detailed product information.
