EN 1.4571 material pipe specification
EN 1.4571 Stainless Steel Pipe Specification – A Complete Guide to 316Ti Tubing
EN 1.4571, also known as AISI 316Ti or UNS S31635, is a titanium-stabilized austenitic stainless steel used in piping systems requiring excellent corrosion resistance and high-temperature strength. It is particularly suitable for applications involving acidic media, chlorides, or elevated temperatures where traditional 316 may be at risk of intergranular corrosion.
What Is EN 1.4571 Material?
EN 1.4571 is part of the EN 10088 standard and is chemically similar to 316L but includes the addition of titanium (Ti) to stabilize the structure against sensitization. This allows it to maintain corrosion resistance after welding or long-term exposure to temperatures between 450°C and 850°C.
EN 1.4571 industrial Pipe Specification
| Specification Item | Details |
|---|---|
| Material Grade | EN 1.4571 / AISI 316Ti / UNS S31635 |
| Product Form | Seamless Pipe, Welded Pipe, Tubing |
| Standards | ASTM A312 / EN 10216-5 (seamless), EN 10217-7 (welded) |
| OD Range | 6 mm – 610 mm (or custom sizes) |
| Wall Thickness | SCH 5S to SCH 160 / 0.5 mm – 20 mm |
| Length | 6m fixed / random length / cut-to-length |
| Finish | Annealed & Pickled / Polished / Bead Blasted |
| Tolerance | As per EN ISO 1127 / ASTM A999 |
| Pressure Rating | Up to 100 bar depending on dimensions & standard |
| Certification | EN 10204 3.1 / 3.2, PED, AD2000, NACE MR0175 |
EN 1.4571 High Corrosion Resistance pipe Chemical Composition (EN 10088-1)
| Element | Content (%) |
|---|---|
| C | ≤ 0.08 |
| Si | ≤ 1.00 |
| Mn | ≤ 2.00 |
| P | ≤ 0.045 |
| S | ≤ 0.015 |
| Cr | 16.5 – 18.5 |
| Ni | 10.5 – 13.0 |
| Mo | 2.0 – 2.5 |
| Ti | ≥ 5 × C (min. 0.5%) |
EN 1.4571 Seamless Stainless Steel Pipe Mechanical Properties
| Property | Typical Value |
|---|---|
| Yield Strength (Rp0.2) | ≥ 230 MPa |
| Tensile Strength | 500 – 700 MPa |
| Elongation (A5) | ≥ 35% |
| Hardness (HB) | ≤ 200 HB |
| Operating Temperature | -196°C to +600°C (oxidation limit) |
EN 1.4571 Stainless steel HF welded tube Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | 316Ti |
| UNS | S31635 |
| DIN | X6CrNiMoTi17-12-2 |
| ISO | 316Ti |
| JIS | SUS 316Ti |
Supply Range & Export Support
We offer EN 1.4571 pipes in both seamless and welded form, withcustom sizes, end treatments (plain/beveled/threaded), and global shipping support. All pipes undergo 100% PMI testing, hydro testing, and surface inspection before dispatch.
In addition, we also supply 1.4571 stainless steel plates, 1.4571 stainless steel coils, 1.4571 stainless steel rods, 1.4571 stainless steel pipe fittings.
Please refer to the following website for detailed specifications and product information. Please refer to the following website for detailed specifications and product information.
product：https://www.chinastainless-steel.com/search/1.4571.html
