Material number 1.0332: St 22
1.0332 is the European material number (Werkstoffnummer, EN 10027-2) for St 22, withdrawn DIN designation for hot-rolled mild steel sheet for cold forming specified in DIN 17100.
Reading 1.0332 digit by digit
An EN 10027-2 number has the form 1.XXYY. The leading 1 marks it as steel. The pair 03 is the steel group, and for this number that group is steels with < 0.12 % C or Rm < 400 MPa. The final pair 32 is a sequential count inside that group and carries no meaning of its own — 1.0332 is simply the 32th entry registered there.
The group digits are the useful part. Reading 03 tells you what kind of steel you are looking at before you know anything else about it, and the 6 other numbers from group 03 held here are listed below.
1.0332 identity card
| Item | Value |
|---|---|
| Material number (EN 10027-2) | 1.0332 |
| Symbolic grade name | St 22 |
| Steel group | 03 — steels with < 0.12 % C or Rm < 400 MPa |
| Sequential number in group | 32 |
| Specified in | DIN 17100 |
| Steel family | Cold-rolled & coated sheet |
| Yield, first condition in the table | ≈ 240 MPa (St 22 (historic)) |
| Tensile, same condition | 340–420 MPa |
| Cross-references held | 5 grades in 3 systems |
St 22 (StW 22, 1.0332) is the withdrawn DIN 1614 hot-rolled forming sheet, replaced by DD11 in EN 10111. Chemistry, what the number meant, and the modern EN, JIS and ASTM grades to order instead.
Full data sheet for St 22 → · Equivalent grades → · DIN 17100 →
Group 03 — the neighbouring numbers
| Material number | Grade | Type |
|---|---|---|
| 1.0301 | SAE 1010 | Low-carbon steel for cold forming, welding and case hardening |
| 1.0301 | C10 | Unalloyed low-carbon case-hardening steel |
| 1.0330 | DC01 | Cold-rolled low-carbon steel for cold forming |
| 1.0332 | DD11 | Hot-rolled low-carbon steel for cold forming |
| 1.0345 | P235GH | Non-alloy steel for pressure purposes with elevated-temperature properties |
| 1.0350 | DX52D | Hot-dip coated low-carbon steel for drawing |
Same group digits, so the same broad class of steel. The sequential digits do not rank them.