1.4404 pipes – 316L stainless steel pipes EN 10216-5
1.4404 (AISI 316L) is a molybdenum-alloyed, low-carbon stainless steel with increased resistance to chlorides and aggressive media – standard in chemical and marine engineering. ROHRLINE supplies 1.4404 pipes and tubes to EN 10216-5 and EN 10217-7 with EN 10204 3.1 inspection certificates – worldwide.
Application & properties
1.4404 (AISI 316L) is a molybdenum-alloyed, low-carbon stainless steel with increased resistance to chlorides and aggressive media – standard in chemical and marine engineering.
- Chemical and process plants
- Piping for chloride-bearing/aggressive media
- Food, pharma and marine engineering
Tell us the medium, temperature and pressure – we will check the grade with you.
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| C | ≤ 0.030 |
| Si | ≤ 1.00 |
| Mn | ≤ 2.00 |
| Cr | 16.5–18.5 |
| Ni | 10.0–13.0 |
| Mo | 2.00–2.50 |
| N | ≤ 0.10 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 | ≥ 190 MPa |
| Tensile strength Rm | 490–690 MPa |
| Elongation A | ≥ 40 % |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 10216-5 (seamless), EN 10217-7 (welded), EN 10088 |
| ASME/ASTM equivalent | ~ AISI 316L |
| Material no. | 1.4404 |
| Short name / aka | X2CrNiMo17-12-2 · AISI 316L · V4A |
We supply 1.4404 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Supply programme & machining
| Item | Details |
|---|---|
| Dimensions (pipe) | Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard |
| As flange & fitting | DN 10 to DN 1200 · PN 6 to PN 400 · Class 150 to Class 2500 to ASME B16.5 (to NPS 24), above that ASME B16.47 to Class 900 |
| Lengths & cutting | Mill lengths, sawn fixed lengths and fitting pieces from 0.1 to 12 m – sawn and bevelled |
| Minimum quantity | From a single item – from one fitting piece to the complete piping system |
| Availability | Common grades and sizes available at short notice, special sizes procured per project |
| Lead time | Standard sizes usually 3–5 working days; the binding date is confirmed with the quote |
| Machining | Sawing and bevelling, roll grooving for grooved couplings, threading to EN 10226, drilling, facing, bending with special radii |
| Surface | Blasting, coating and marking to customer specification |
| Certificates | Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request |
| Testing | Non-destructive testing by ultrasound, eddy current and X-ray, pressure test report on request |
These figures describe our supply programme. Which size is actually available in this grade is clarified with your enquiry – you usually receive the quote the same day.
We clarify availability, price and inspection certificate with your enquiry.
Frequently asked questions about 1.4404
What does the L in 316L / 1.4404 stand for?
L (low carbon) means low carbon content (≤ 0.03 %) – improving resistance to intergranular corrosion after welding.
When to use 1.4404 instead of 1.4301?
Whenever chlorides or more aggressive media are involved – the molybdenum in 1.4404 markedly increases pitting resistance.
Which dimensions and certificates does ROHRLINE supply for 1.4404?
ROHRLINE supplies 1.4404 in the following range: Programme range: outside Ø 10.2 to 2,032 mm · DN 6 to DN 2000 · all standard wall thicknesses; available sizes depend on grade and standard. Documentation: Mill certificate 2.2, inspection certificate 3.1 to EN 10204 (standard with machining), 3.2 with notified body on request. Delivery worldwide; the binding date is confirmed with the quotation.
Components in 1.4404 pipes
We supply these ready-to-install parts in this grade – to your drawing, tested and documented.
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Request 1.4404?
Grade, standard, size, pressure rating and quantity are enough – on request with an EN 10204 3.1 / 3.2 mill certificate. Your quote usually the same day.
All data are typical values per the relevant EN standards for first orientation – without warranty. The applicable standard and the mill certificate of the delivery are decisive.