Austenitic stainless
1.4404
TP 316L
X2CrNiMo17-12-2
Low-carbon 316. The molybdenum content handles chlorides while low carbon secures resistance to intergranular corrosion in the welded condition.
Chemical composition
mass %| Element | Content |
|---|---|
| CCarbon | ≤0.03 |
| SiSilicon | ≤1 |
| MnManganese | ≤2 |
| PPhosphorus | ≤0.04 |
| SSulphur | ≤0.015 |
| NNitrogen | ≤0.11 |
| CrChromium | 16.5–18.5 |
| MoMolybdenum | 2–2.5 |
| NiNickel | 10–13 |
Mechanical properties
room temperature- Rp0.2 min (N/mm²)
- 190
- Rp1.0 min (N/mm²)
- 225
- Rm (N/mm²)
- 490–690
- Elongation A% (longitudinal)
- 40
- Elongation A% (transverse)
- 30
- Impact energy KV J (longitudinal)
- 100
- Impact energy KV J (transverse)
- 60
Seamless tube.
Standard equivalences
- DIN/EN
- X2CrNiMo17-12-2
- AISI
- 316L / 316S11
- UNS
- S31603
- SS
- 2348
- AFNOR
- Z3 CND 18.12.02
- BS
- 316 S11
- PN
- 00H17N14M2
Typical applications
- Offshore modules
- Chemical-tanker tanks and piping
- Chemical, food and beverage storage and transport
- Pharmaceutical, synthetic-fibre, paper and textile plant
- Pressure vessels
Frequently asked questions
What is 1.4404 (TP 316L)?
1.4404 (X2CrNiMo17-12-2) — Austenitic stainless. Low-carbon 316. The molybdenum content handles chlorides while low carbon secures resistance to intergranular corrosion in the welded condition.
Which grades are equivalent to 1.4404?
1.4404 corresponds to EN X2CrNiMo17-12-2; equivalent designations: AISI 316L / 316S11, UNS S31603, SS 2348, AFNOR Z3 CND 18.12.02, BS 316 S11, PN 00H17N14M2.
Related grades
Indicative values — verify against the applicable standard before specifying.
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