X6CrNiMoTi17-12-2 vs 316L: Both 316 variants — 1.4571 uses Ti-stabilization, 1.4404 uses low-C
X6CrNiMoTi17-12-2 vs 316L
Side-by-side chemical composition and mechanical property comparison.
Overview
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
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 | 316L | |
|---|---|---|
| Material Number | 1.4571 | 1.4404 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-3 | EN 10088-2 |
Chemical composition (wt%)
| Element | X6CrNiMoTi17-12-2 | 316L | Overlap |
|---|---|---|---|
| C | 0–0.08% | 0–0.03% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–2% | 0–2% | OK |
| P | 0–0.045% | 0–0.045% | OK |
Mechanical properties
| Property | X6CrNiMoTi17-12-2 | 316L | Unit |
|---|---|---|---|
| tensile_strength | 500–700 | 520–680 | MPa |
| yield_strength | ≥ 200 | ≥ 220 | 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 X6CrNiMoTi17-12-2 the same as 316L?
X6CrNiMoTi17-12-2 and 316L have a 85% composition overlap. Both 316 variants — 1.4571 uses Ti-stabilization, 1.4404 uses low-C
Can I replace X6CrNiMoTi17-12-2 with 316L?
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 X6CrNiMoTi17-12-2 and 316L?
The main differences are in the following elements: Ni. X6CrNiMoTi17-12-2 is a Stainless Steel grade, while 316L is a Stainless Steel grade.
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