DIN 1629 Seamless Circular Unalloyed Steel Tubes Subject to Special Requirements
| Specification | DIN 1629 Seamless Circular Unalloyed Steel Tubes Subject to Special Requirements |
| Standard | DIN 1629 |
| Equivalents | EN 10216-1, ASTM A53, BS 3601, NF A 49-112 |
| Materials | St44, 1.025C6 |
Chemistry Composition of DIN 1629 St44, 1.0256
| C, % | P, % | S, % |
| 0.21 max | 0.040 max | 0.040 max |
Mechanical Properties of DIN 1629 St44, 1.0256
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % |
| 420-550 | 275 min | 21 min |