Material number 1.4462: 1.4462
1.4462 is the European material number (Werkstoffnummer, EN 10027-2) for 1.4462, ferritic-austenitic (duplex) stainless steel specified in EN 10088-2.
Reading 1.4462 digit by digit
An EN 10027-2 number has the form 1.XXYY. The leading 1 marks it as steel. The pair 44 is the steel group, and for this number that group is stainless steels with ≥ 2.5 % Ni, with Mo. The final pair 62 is a sequential count inside that group and carries no meaning of its own — 1.4462 is simply the 62th entry registered there.
The group digits are the useful part. Reading 44 tells you what kind of steel you are looking at before you know anything else about it, and the 2 other numbers from group 44 held here are listed below.
1.4462 identity card
| Item | Value |
|---|---|
| Material number (EN 10027-2) | 1.4462 |
| Symbolic grade name | 1.4462 |
| Steel group | 44 — stainless steels with ≥ 2.5 % Ni, with Mo |
| Sequential number in group | 62 |
| Specified in | EN 10088-2 |
| Steel family | Stainless steel |
| Yield, first condition in the table | ≥ 500 MPa (Cold-rolled sheet (C), ≤ 8 mm, +AT) |
| Tensile, same condition | 700–950 MPa |
| Cross-references held | 9 grades in 6 systems |
1.4462 (X2CrNiMoN22-5-3) is the standard duplex 2205 in EN 10088: 22 % Cr, 5 % Ni, 3 % Mo, 0.15 % N. 450–460 MPa yield, 640–840 MPa tensile, PREN ≈ 35. Data, limits and the 2205/S31803/S32205 equivalence.
Full data sheet for 1.4462 → · Equivalent grades → · EN 10088-2 →
Group 44 — the neighbouring numbers
Same group digits, so the same broad class of steel. The sequential digits do not rank them.