Σωλήνες νερού και Φυσικού αερίου
| Specified outside diameter | Thread Size | Outside Diameter | M Medium series EN 10255 | ||
|---|---|---|---|---|---|
| D (mm) | R | max (mm) | min (mm) | Wall Thickness T (mm) | Mass per unit length of bare tube Plain end (kg/m) |
| 21.3 | 1/2 | 21.8 | 21.0 | 2.6 | 1.21 |
| 26.9 | 3/4 | 27.3 | 26.5 | 2.6 | 1.56 |
| 33.7 | 1 | 34.2 | 33.3 | 3.2 | 2.41 |
| 42.4 | 1 + 1/4 | 42.9 | 42.0 | 3.2 | 3.10 |
| 48.3 | 1 + 1/2 | 48.8 | 47.9 | 3.2 | 3.56 |
| 60.3 | 2 | 60.8 | 59.7 | 3.6 | 5.03 |
| 76.1 | 2 + 1/2 | 76.6 | 75.3 | 3.6 | 6.42 |
| 88.9 | 3 | 89.5 | 88.0 | 4.0 | 8.36 |
| 114.3 | 4 | 115.0 | 113.1 | 4.5 | 12.2 |
| Specified outside diameter | Designation of Thread | Outside Diameter | Type L series EN 10255 | ||
|---|---|---|---|---|---|
| D (mm) | R | max (mm) | min (mm) | Wall Thickness T (mm) | Mass per unit length of bare tube Plain end (kg/m) |
| 21.3 | 1/2 | 21.7 | 21.0 | 2.3 | 1.08 |
| 26.9 | 3/4 | 27.1 | 26.4 | 2.3 | 1.40 |
| 33.7 | 1 | 34.0 | 33.2 | 2.9 | 2.20 |
| 42.4 | 1 + 1/4 | 42.7 | 41.9 | 2.9 | 2.82 |
| 48.3 | 1 + 1/2 | 48.6 | 47.8 | 2.9 | 3.25 |
| 60.3 | 2 | 60.7 | 59.6 | 3.2 | 4.51 |
| 76.1 | 2 + 1/2 | 76.0 | 75.2 | 3.2 | 5.75 |
| 88.9 | 3 | 88.7 | 87.9 | 3.2 | 6.75 |
| 101.6 | 3 + 1/2 | 101.2 | 100.3 | 3.6 | 8.70 |
| 114.3 | 4 | 113.9 | 113.0 | 3.6 | 9.83 |
| Πίνακας χημικής ανάλυσης και μηχανικών ιδιοτήτων χάλυβα | ||||||||
|---|---|---|---|---|---|---|---|---|
| Steel Grade | Chemical Composition % | Mechanical properties | ||||||
| Steel Name | Steel Number | C Max | Mn Max | P Max | S Max | Upper Yield Strength Reh (Mpa) | Tensile Strength Rm (Mpa) | Elongation A min % |
| S235JR | 10025 | 0.10 | 0.80 | 0.030 | 0.030 | 195 | 320 to 350 | 20 |