Galvanized steel pipe specification, size theoretical weight table

China standard hot-dip galvanized steel pipe|cold galvanized steel pipe specification, size theoretical weight table

regulation	grid	OD mm	Wall thickness mm	Minimum wall	Welded pipe ( 6 m fixed length)		Galvanized pipe ( 6 m fixed length)
Nominal inner diameter	inch	OD mm		Thick mm	Meter weight kg	Root weight kg	Meter weight kg	Root weight kg
DN15	1/2	21.3	2.8	2.45	1.28	7.68	1.357	8.14
DN20	3/4	26.9	2.8	2.45	1.66	9.96	1.76	10.56
DN25	1	33.7	3.2	2.8	2.41	14.46	2.554	15.32
DN32	1.25	42.4	3.5	3.06	3.36	20.16	3.56	21.36
DN40	1.5	48.3	3.5	3.06	3.87	23.22	4.1	24.6
DN50	2	60.3	3.8	3.325	5.29	31.74	5.607	33.64
DN65	2.5	76.1	4	3.5	7.11	42.66	7.536	45.21
DN80	3	88.9	4		8.38	50.28	8.88	53.28
DN100	4	114.3	4		10.88	65.28	11.53	69.18
DN125	5	140	4.5		15.04	90.24	15.942	98.65
DN150	6	168.3	4.5		18.18	109.08	19.27	115.62
DN200	8	219.1	6 (welded pipe)		31.53	189.18
DN200	8	219.1	6.5 hot-dip galvanizing				36.12	216.72

name Weigh	Chinese standard				Enterprise standard				Contrast conclusion
	Low pressure fluid conveying welded steel pipe				Welded steel pipe
	GB/T3091-2001				Q/YF01-2002
1	Steel pipe outer diameter				Steel pipe outer diameter, outer diameter allowable deviation				Better than Chinese standards
	Outer diameter D/mm	Tube outer diameter deviation mm		Tube outer diameter Deviation mm	Outer diameter D	8″	± 0.60mm
	D< 48.3	± 0.5mm				5″-6″	± 0.50mm
	48.3<D < 168.3	± 1.0%				4″	± 0.40mm
	168.3<D < 508	± 0.75%		+2.4 -0.8		3″-“	± 0.30mm
	D>508	± 1.0%		+3.0 -0.8		2″ or less	± 0.20mm
	Wall thickness deviation	± 12.5%			Wall thickness S	1.8 5.75mm	5%
2	Usual length		Allowable deviation		length	Usual length		Allowable deviation	Better than Chinese standards
	4M-12M		+20 -0			2 inches or less		5-0
	Double length: 5-10mn ® should be left for each double in the usual length Margin		+20 -0			2.5 inches – 4 inches		5-0
						5 inches or more		15-0
						Special length		20-0