Austenitic stainless
1.4436 TP 316 X3CrNiMo17-13-3
316 variant with higher molybdenum (2.5–3.0%) for improved pitting resistance; corrosion-resistant as delivered.
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Chemical composition
mass %| Element | Content |
|---|---|
| CCarbon | ≤0.07 |
| SiSilicon | ≤1 |
| MnManganese | ≤2 |
| PPhosphorus | ≤0.04 |
| SSulphur | ≤0.015 |
| NNitrogen | ≤0.11 |
| CrChromium | 16.5–18.5 |
| MoMolybdenum | 2.5–3 |
| NiNickel | 10.5–13 |
Mechanical properties
room temperature- Rp0.2 min (N/mm²)
- 205
- Rp1.0 min (N/mm²)
- 240
- Rm (N/mm²)
- 510–710
- 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
- X3CrNiMo17-13-3
- AISI
- 316
- UNS
- S31600
- SS
- 2343
- AFNOR
- Z7 CND 18.12.03
- BS
- 316 S31
Typical applications
- Offshore technology
- 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 1.4436 (TP 316)?
1.4436 (X3CrNiMo17-13-3) — Austenitic stainless. 316 variant with higher molybdenum (2.5–3.0%) for improved pitting resistance; corrosion-resistant as delivered.
Which grades are equivalent to 1.4436?
1.4436 corresponds to EN X3CrNiMo17-13-3; equivalent designations: AISI 316, UNS S31600, SS 2343, AFNOR Z7 CND 18.12.03, BS 316 S31.
Related grades
Indicative values — verify against the applicable standard before specifying.
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