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

Black carbon steel tube

Product Description

Black carbon 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

Product Show

Black carbon steel tube

Material :

1.Tianyingtai is committed to long-term development, creating high-quality products and services, with the same pursuit of quality and service, stable, strong, long-term cooperation raw material suppliers, such as Haigang, Yurunde, etc., to maximize the consistency and stability of materials, product appearance and internal quality;

2.Raw materials grade : Q195, 235, 235B and Q345...

3.If requested, the zinc coating can customized up to 280 grams.

4.The purity of zinc wire is 99.99% zinc content with high purity.to remain the pipe welded seam antirust.

5.In the passivation process, we have own invention patents - galvanized pipe passivation liquid automatic spraying system to ensure even adhesion, high passivation efficiency, beautiful appearance.

6.In November 2014, it was recognized as Tianjin Famous Trademark by Tianjin Market and Quality Supervision Committee. The steel pipe produced and sold by the company was rated as Tianjin Famous Brand Product by Tianjin Municipal Government and keep for many years.

Production Processes

Black carbon steel tube

Our Advantages

1.Thailand, we have the lowest anti-dumping in China.(3.22%).

2.Factory and experimental test center to achieve cost and quality control.

3.Processing lines, can satisfy various requests of customers. Producing and processing one-stop service.

4.Is the top 3 manufacturer in Tianjin.

5.We have been cooperated with Alibaba for 11 years; we are gold supplier and assessed supplier; we are one of first batch of companies do exporter in this industry.

All items of our products and related tests as follow :

1.ERW black round pipe (ASTM A53,GB..)

2.Weld black square/rectangular pipe(ASTM A500,GB,...)

3.Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...)

4.Hot dip galvanized square/rectangular pipe(ASTM A500,GB...)

5.Pre-galvanized square/rectangular/round pipe,cold rolled black annealed or bright finished pipe.

6.Spiral steel pipe

7.Seamless pipe (ASTM A53,A106B,)

8.Oval pipe in galvanized and black surface

9.LTZ... special sizes pipe

10.Steel prop , steel plank,steel scaffolding pipe and accessories... steel constrctution material

11.Steel angle, Flat bar,round bar,sqaure bar,