316L vs X6CrNiMoTi17-12-2: Both 316 variants — 1.4571 uses Ti-stabilization, 1.4404 uses low-C
316L vs X6CrNiMoTi17-12-2
Side-by-side chemical composition and mechanical property comparison.
Overview
316L
1.4404
Low-carbon austenitic stainless steel with molybdenum addition. Superior corrosion resistance to 304, especially against chlorides and pitting. Standard choice for chemical processing, marine, medical implants, and pharmaceutical equipment.
X6CrNiMoTi17-12-2
1.4571
Titanium-stabilized austenitic Cr-Ni-Mo steel — AISI 316Ti. THE German standard industrial stainless (known as "V4A"). Ti prevents Cr-carbide precipitation at 450-850°C giving intergranular corrosion resistance after welding. Better high-temp stability than 316L (up to 550°C). PREN 23-27. Used extensively in chemical/pharmaceutical plants, pressure vessels, food processing, apparatus construction, and shipbuilding.
| 316L | X6CrNiMoTi17-12-2 | |
|---|---|---|
| Material Number | 1.4404 | 1.4571 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-3 |
Chemical composition (wt%)
| Element | 316L | X6CrNiMoTi17-12-2 | Overlap |
|---|---|---|---|
| C | 0–0.03% | 0–0.08% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–2% | 0–2% | OK |
| P | 0–0.045% | 0–0.045% | OK |
Mechanical properties
| Property | 316L | X6CrNiMoTi17-12-2 | Unit |
|---|---|---|---|
| tensile_strength | 520–680 | 500–700 | MPa |
| yield_strength | ≥ 220 | ≥ 200 | MPa |
| elongation | ≥ 40 | ≥ 40 | % |
Compatibility Assessment
1.4571 (316Ti) uses Ti to prevent sensitization — proven for decades in German industry. 1.4404 (316L) uses low carbon (<0.03%) for the same purpose — modern approach, lower cost. 316Ti has better high-temp creep (Ti-C precipitates). 316L is increasingly preferred for new designs. Choose 1.4571 for legacy systems or >400°C service; 1.4404 for new builds.
Frequently Asked Questions
Is 316L the same as X6CrNiMoTi17-12-2?
316L and X6CrNiMoTi17-12-2 have a 85% composition overlap. Both 316 variants — 1.4571 uses Ti-stabilization, 1.4404 uses low-C
Can I replace 316L with X6CrNiMoTi17-12-2?
In many cases, yes. The compositions overlap significantly (85%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between 316L and X6CrNiMoTi17-12-2?
The main differences are in the following elements: Ni. 316L is a Stainless Steel grade, while X6CrNiMoTi17-12-2 is a Stainless Steel grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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