Black Iron Steel Tube

Tianjin Tianyingtai Steel Pipe Co.,Ltd specialized in manufacturing steel pipe for more than 20 years. We have 13 production lines for producing pre galvanized pipe, black pipe and hot dipped galvanized steel pipe. Welcome to us for more information.
American Standard:ASTM A53/A53M/ ASTM A500B
Britain Standard: BS1387/EN 10255/BS EN10219
GB Standard:GB/T 3091-2008 |GB/T3091-2015
Germany Standard: DIN 2440
Material:Q195 Q235 Q355

Outer Diameter: 10 mm- 114mm
Wall Thickness: 0.5 mm-2.3 mm
Length: 4.5m-8m or customized

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Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of black iron steel tube in China. Welcome to consult the quotation and import cheap black iron steel tube made in China here from our factory.

Black iron steel tube Product Description

Black iron steel tube
Grade	Outer Diameter		Diameter Tolerance	Wall Thickness	Thickness Tolerance	Length	Length Tolerance
Q195 Q235 Q345	inch	mm	mm	mm	mm	m	mm
	1/2	20	+/-0.5	0.6-3.0	+/-0.1mm	3.0-12.0	-0, +20
	3/4	25	+/-0.5	0.6-3.25	+/-0.1mm	3.0-12.0	-0, +20
		25.4	+/-0.5	0.6-3.5	+/-0.1mm	3.0-12.0	-0, +20
	1	32	+/-0.5	0.7-3.75	+/-0.1mm	3.0-12.0	-0, +20
		38	+/-0.5	0.7-3.75	+/-0.1mm	3.0-12.0	-0, +20
	1-1/4	40	+/-0.5	0.7-3.75	+/-0.1mm	3.0-12.0	-0, +20
		42	+/-0.5	0.7-3.75	+/-0.1mm	3.0-12.0	-0, +20
	1-1/2	47	+/-0.5	1-4.0	+/-0.1mm	3.0-12.0	-0, +20
		48	+/-0.5	1-4.0	+/-0.1mm	3.0-12.0	-0, +20
	2	59	+/-0.5	1-8.0	+/-0.1mm	3.0-12.0	-0, +20
		60.3	+/-0.5	1-8.0	+/-0.1mm	3.0-12.0	-0, +20
	2-1/2	75	+/-0.5	1-11.5	+/-0.1mm	3.0-12.0	-0, +20
	3	87	+/-0.5	1-12	+/-0.1mm	3.0-12.0	-0, +20
	4	113	+/-0.5	1-12.75	+/-0.1mm	3.0-12.0	-0, +20

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Black iron steel tube

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