Material number 1.0242: S250GD
1.0242 is the European material number (Werkstoffnummer, EN 10027-2) for S250GD, hot-dip coated structural steel, guaranteed 250 MPa yield specified in EN 10346.
Reading 1.0242 digit by digit
An EN 10027-2 number has the form 1.XXYY. The leading 1 marks it as steel. The pair 02 is the steel group, and for this number that group is other structural steels. The final pair 42 is a sequential count inside that group and carries no meaning of its own — 1.0242 is simply the 42th entry registered there.
The group digits are the useful part. Reading 02 tells you what kind of steel you are looking at before you know anything else about it, and the 2 other numbers from group 02 held here are listed below.
1.0242 identity card
| Item | Value |
|---|---|
| Material number (EN 10027-2) | 1.0242 |
| Symbolic grade name | S250GD |
| Steel group | 02 — other structural steels |
| Sequential number in group | 42 |
| Specified in | EN 10346 |
| Steel family | Cold-rolled & coated sheet |
| Yield, first condition in the table | 250 MPa (S250GD, all thicknesses (longitudinal)) |
| Tensile, same condition | 330 MPa |
| Cross-references held | 8 grades in 5 systems |
S250GD (1.0242) is the entry structural galvanized grade of EN 10346: 250 MPa yield, 330 MPa tensile, 19 % elongation, Z100–Z600 coating. Chemistry, S220GD–S550GD ladder, A653 SS/HSLAS equivalents, purlin and decking use.
Full data sheet for S250GD → · Equivalent grades → · EN 10346 →
Group 02 — the neighbouring numbers
Same group digits, so the same broad class of steel. The sequential digits do not rank them.