Tolerances

Property	Tolerance
Profile height and width of flange
	Nominal dimensions (mm) B and H: ± 0,5 % with minimum ± 0,20 mm B and H: ± 0,5 % with maximum ± 0,75 mm
Diametre of Rods and Tubes
	D, d (mm) 0 – 10 10 – 20 20 – 50 50 – 100 100 –	D ± 0,20 ± 0,30 ± 0,35 ± 0,40 ± 0,45	d ± 0,20 ± 0,30 ± 0,35 ± 0,40 ± 0,45
Wall-thickness of open and closed profiles	Nominal dimensions (mm)
	Thickness 0 – 2 2 – 5 5 – 10 10 –	T1 ± 0,15 ± 0,20 ± 0,35 ± 0,45	T2 ± 0,30 ± 0,35 ± 0,45 ± 0,50
Flatness in transverse direction
	Tolerance F < 0,008 X B mm
Size of angle
	Tolerance Y ± 1,5°
Straightness
	Tolerance (B and H are overall width and height dimensions) D < 0,002 x L2 for sections with B or H < 50 mm D < 0,001 x L2 for sections with B or H ≥ 50 mm and < 100 mm D < 0,0005 x L2 for sections with B or H ≥ 100 mm
Twist
	Tolerance V < 1.5° per meter maximum for thickness < 5 mm V < 1,0° per meter maximum for thickness ≥ 5 mm
Length of cut
	L + 20 / – 0 mm
Angularity of cut
	V ± 1,5°

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