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BS 1139 Section 1.1:1990 :

TECHNICAL DATA OF BLACK AND GAVANISED STEEL PIPES CONFORMING TO BS 1139 SECTION 1.1 : 1990

Size		Thickness		Nominal Mass		Meters/Tonne		Feet/Tonne		No. of Pipes Packed Per Standard Bundle (1 Tonne Approx.)
Outside Diameter		Thickness		Black Plain End	Galvanised Plain End Calculated	Black Plain End Calculated	Galvanised Plain End Calculated	Plain Black End Calculated	Plain Galvanised End Calculated	No. of Pipes Packed Per Standard Bundle (1 Tonne Approx.)
mm	inch	mm	inch	Kg/mtr	Kg/mtr	Meters	Meters	Feet	Feet
48.3	1.9	4.00	0.158	4.37	4.48	229	223	751	732	37120
Standard length 6.40 meters +/- 0.05 meters or as per customers requirements

Tolerances : Outside Diameter : 0.5 mm

: Thickness : -10%

: Nominal Mass : Single Tube +12 % (-8%) Batch of 10 tonnes +/-7.5 %