Product definition
Product under this category supplied only in HR (Black) & Galvanized type. Under this category tubes are supplied with mainly 3.2mm and 4.0mm thickness with standard specification EN 39 .
SCAFFOLDING TUBES EN 39:
| Tube | Nominal Value (Type 4) | Nominal Value (Type 3) | Tolerances | Pieces per Bundles |
|---|---|---|---|---|
| 15 | 1/2 | 0.831 | 21.1 | 0.815 |
| 20 | 3/4 | 1.051 | 26.7 | 1.035 |
| 25 | 1 | 1.299 | 33 | 1.283 |
| 32 | 1 1/4 | 1.646 | 41.8 | 1.63 |
Chemical Proprties:
| Steel Grade name | Steel Grade number | % C (max) | % Si (max) | % Mn (max) | % P (max) | % S (max) | % AL (min) |
|---|---|---|---|---|---|---|---|
| 15 | 1/2 | 0.831 | 21.1 | 0.815 | 0.831 | 21.1 | 0.815 |
- ≤ 0.05 % (range1) (≤ 0.04 % if the orfer specified the Si content shall be limted) or ≥ .015 ≤ 0.25
- When bare tubes are specified the range shall be reported at the time of enquiry and order
Mechanical Proprties:
| Steel Grade name | Steel Grade number | Yield strength ''Reh'' min MPa | Tensile strength ''Rm'' MPa | Elongation ''A'' min % |
|---|---|---|---|---|
| 15 | 1/2 | 0.831 | 21.1 | 0.815 |
Note:
- The inside diameter of tubes shall allow insertion of a gauge of diameter 37.7 mm for a minimum length of 200mm.