Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of astm a53/a500 standard black square round steel pipe in China. Welcome to consult the quotation and import cheap astm a53/a500 standard black square round steel pipe made in China here from our factory.

Welded square pipe

Product Description

Welded square pipe
Standard	Side Length(mm)		Common Tube(mm)
Q195 Q215 Q235	DN		Side Length Tolerance	Thickness	Length	Length Tolerance
	16	16	+/-0.5	0.7-2.2	3000-12000	+20, -0
	19	19	+/-0.5	0.7-2.2	3000-12000	+20, -0
	20	20	+/-0.5	0.7-2.2	3000-12000	+20, -0
	20	40	+/-0.5	0.7-2.2	3000-12000	+20, -0
	25	25	+/-0.5	0.7-2.2	3000-12000	+20, -0
	25	50	+/-0.5	0.7-2.2	3000-12000	+20, -0
	25	75	+/-0.5	0.7-2.2	3000-12000	+20, -0
	30	30	+/-0.5	0.7-2.2	3000-12000	+20, -0
	30	40	+/-0.5	0.7-2.2	3000-12000	+20, -0
	30	50	+0.4, -0.5	0.7-2.2	3000-12000	+20, -0
	32	32	+/-0.5	0.7-2.2	3000-12000	+20, -0
	35	35	+/-0.5	0.7-2.2	3000-12000	+20, -0
	37	57	+0.4, -0.5	0.8-2.3	3000-12000	+20, -0
	37	77	+/-0.5	0.8-2.3	3000-12000	+20, -0
	38	38	+0.4, -0.5	0.8-2.3	3000-12000	+20, -0
	38	75	+0.5, -0.6	1.0-2.3	3000-12000	+20, -0
	50	75	+0.5, -0.6	1.0-2.3	3000-12000	+20, -0
	40	40	+0.4, -0.5	0.8-2.3	3000-12000	+20, -0
	40	60	+/-0.5	0.8-2.3	3000-12000	+20, -0
	50	50	+/-0.5	1.0-2.3	3000-12000	+20, -0
	40	80	+0.5, -0.6	1.0-2.3	3000-12000	+20, -0
	50	75	+0.5, -0.6	1.0-2.3	3000-12000	+20, -0
	60	60	+0.5, -0.6	1.0-2.3	3000-12000	+20, -0
	50	100	+/-0.7	1.0-2.3	3000-12000	+20, -0
	50	150	+/-0.8	1.0-2.3	3000-12000	+20, -0

Product Show

Welded square pipe

Production processes:

Our advantages

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

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

3.Is the top five in Tianjin.

4.We have been cooperate 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,

12.H,I,U,C,T,Y,W...steel beam/channel

13.Deformed steel bar

14.Hot rolled& cold rolled steel sheet/coil in black,galvanized,color coated surface.

Product Application

Welded square pipe

Packing&Shipment:

1.we have fully enclosed, clean and tidy modern logistics storage center with a building area of 20,000 square meters. It can provide customers with storage, package, billing and delivery. We can loading 20-25 containers one day. The packing accuracy rate is 100%;

2.We own professional logistics shipment, around more than 10 13-meter semi-trailers, in terms of transport efficiency and quality to provide customers with convenience, cost reduction, value-added services;

3.In the aspects of preventing steel pipe bumping, scratching, cratering, flattening, pipe deformation, raining, etc., standardization operations have been established and strictly implemented to ensure that the quality of the process of storage and transportation of steel pipes is effectively controlled

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ASTM A53/A500 Standard Black Square Round Steel Pipe