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Steel Tubes for Scaffolding
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Parameter
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Dimensions and Mass
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Tolerances
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|
Outside Diameter
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48.3mm
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± 0.5mm
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Thickness
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4.0mm
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Welded Tube + 0.8mm, - 0.4mm
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|
Nominal mass per unit length
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4.37 kg/mtr.
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Single Tube max - 7.5%. Quantities of 150m and over ± 4%
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Length
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if specified exact
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± 6.0mm
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| |
Otherwise
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Random length of 4 to 7 Mtr.
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Straightness
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|
1/600 of length
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| Mechanical properties of the tubes: |
Chemical composition (ladle analysis) |
| Tensile strengths 340 N/mm² to 460 N/mm² |
C 0.20% max |
| Yield Strength 210 N/mm² min |
Si 0.30% max |
| Elongation 22% min |
P 0.060 % max |
|
S 0.060 % max |
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