Material number 1.0529: S350GD
1.0529 is the European material number (Werkstoffnummer, EN 10027-2) for S350GD, hot-dip coated structural steel, guaranteed 350 MPa yield — deck and long-span profiles specified in EN 10346.
Reading 1.0529 digit by digit
An EN 10027-2 number has the form 1.XXYY. The leading 1 marks it as steel. The pair 05 is the steel group, and for this number that group is steels 0.25–0.55 % C or Rm 500–700 MPa. The final pair 29 is a sequential count inside that group and carries no meaning of its own — 1.0529 is simply the 29th entry registered there.
The group digits are the useful part. Reading 05 tells you what kind of steel you are looking at before you know anything else about it, and the 5 other numbers from group 05 held here are listed below.
1.0529 identity card
| Item | Value |
|---|---|
| Material number (EN 10027-2) | 1.0529 |
| Symbolic grade name | S350GD |
| Steel group | 05 — steels 0.25–0.55 % C or Rm 500–700 MPa |
| Sequential number in group | 29 |
| Specified in | EN 10346 |
| Steel family | Cold-rolled & coated sheet |
| Yield, first condition in the table | 350 MPa (S350GD, all thicknesses (longitudinal)) |
| Tensile, same condition | 420 MPa |
| Cross-references held | 7 grades in 5 systems |
S350GD (1.0529): 350 MPa yield, 420 MPa tensile, 16 % elongation — EN 10346 galvanized structural sheet for deck, long-span purlins and racking. Chemistry, coatings, A653 SS Grade 50 and SGC440 equivalents.
Full data sheet for S350GD → · Equivalent grades → · EN 10346 →
Group 05 — the neighbouring numbers
| Material number | Grade | Type |
|---|---|---|
| 1.0503 | C45 | Medium-carbon steel for quenching and tempering |
| 1.0565 | P355NH | Weldable fine-grain normalized steel for pressure purposes, elevated temperature |
| 1.0570 | St52-3 | General structural steel (DIN 17100, withdrawn) — today S355J2 / S355JR |
| 1.0576 | S355J2H | Non-alloy structural steel for hollow sections, 355 MPa, −20 °C impact |
| 1.0577 | S355J2 | Non-alloy hot-rolled structural steel, −20 °C impact |
Same group digits, so the same broad class of steel. The sequential digits do not rank them.