316Ti vs 304 Stainless Steel: A Complete Comparison
May 13, 2025
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316Ti Stainless Steel vs 304
When selecting stainless steel for demanding applications, 316Ti and 304 often come into consideration. Both are austenitic stainless steels, but they offer distinct differences in corrosion resistance, heat performance and mechanical properties, making each suitable for different environments.
316Ti Stainless Steel vs 304: Chemical Composition
| Element | 316Ti (S31635 / 1.4571) | 304 (S30400) |
|---|---|---|
| Chromium (Cr) | 16.5-18.5% | 18.0-20.0% |
| Nickel (Ni) | 10.0-14.0% | 8.0-10.5% |
| Molybdenum (Mo) | 2.0-3.0% | Not present |
| Titanium (Ti) | 5(C+N) min, 0.70 max | Not added |
| Carbon (C) | ≤0.08% | ≤0.08% |
316Ti Stainless Steel vs 304: Mechanical Properties
| Property | 316Ti | 304 |
|---|---|---|
| Yield strength (MPa) | ≥205 | ≥205 |
| Tensile strength (MPa) | ≥515 | ≥515 |
| Elongation (%) | ≥40 | ≥40 |
| Hardness (HBW) | ≤192 | ≤201 |
316Ti Stainless Steel vs 304 Physical Property Comparison
Corrosion Resistance Comparison
| Item | 304 | 316Ti |
|---|---|---|
| Atmosphere, fresh water, weak organic acids | Good | Excellent |
| Chloride ion / salt‑spray environment | Poor, prone to pitting corrosion | Good (benefit from molybdenum addition) |
| Service at 425‑850 °C sensitizing range plus welded condition | High risk of sensitization and intergranular corrosion | Titanium‑stabilized, resistant to intergranular corrosion, no post‑weld heat treatment required |
| Applicable media | Clean water, food processing, general indoor environments | Chemical media, chloride‑containing media, welded components for long‑term intermediate‑temperature service |
High-Temperature Performance
316Ti offers superior oxidation resistance at elevated temperatures up to about 800 C, making it ideal for heat exchangers, pressure vessels and thermal processing units. 304 begins to scale at high temperatures and is less suitable for long-term high-temperature exposure.
316Ti Stainless Steel vs 304: Applications
| 316Ti Uses | 304 Uses |
|---|---|
| Chemical tanks and pipelines | Food-grade kitchen equipment |
| Marine and offshore structures | Indoor architectural components |
| Heat exchangers and furnaces | Automotive trim and appliances |
| Welded pressure vessels | General industrial fabrication |
Seawater heat exchange piping
High-pressure process piping
Food processing line
Which Should You Choose?
If your application involves high temperatures, aggressive environments or post-weld corrosion risk, 316Ti is the better choice thanks to its titanium stabilization and added molybdenum. For general-purpose applications, 304 remains a cost-effective and versatile solution.
Need help choosing between 316Ti and 304 stainless steel? Contact our experts today for tailored recommendations.
FAQ
316Ti can replace 304 in performance but at higher cost. 304 offers better cost‑efficiency for room‑temperature fresh water and normal atmosphere. Upgrade to 316Ti only when chlorides exist or welded parts work long‑term at 425‑850 °C.
If 304 welded components serve at 425‑850 °C, solution annealing is mandatory to avoid intergranular corrosion. 316Ti is titanium‑stabilized and requires no post‑weld solution annealing.
316Ti outperforms 304 against chlorides, but it is not suitable for long‑term seawater immersion. 2205 or 2507 duplex stainless steel is recommended for permanent seawater exposure.
Both are nearly non‑magnetic in solution‑annealed condition. Slight magnetism occurs after cold bending or stretching, which is normal for austenitic stainless steel and does not indicate material failure.
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