Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of china galvanized gi gi square tube rectangular pipe size in China. Welcome to consult the quotation and import cheap china galvanized gi gi square tube rectangular pipe size made in China here from our factory.
Gi square tube
Raw materials grade : Q195, 235, 235B and Q345...
The zinc coating can customized for customers, up to 280 grams.
The purity of zinc wire is 99.99% zinc content with high purity.to remain the pipe welded seam antirust.
|
Gi square tube (Zinc coat:30-270g/m2) |
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| 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 | |


Production processes:

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.

Tianjin TianYingTai(TYT) Steel Pipe Co., Ltd is located in Jinghai, Tianjin, which is professionally engaged in steel production sales, steel processing, greenhouse engineering with accessories and export business. It has been experienced for 15 years so far. We have 13 production lines for various kinds of steel pipe, 10 processing production lines and 2 environmental production hot-dipped galvanizing lines. We not only can produce 450,000 tons of various sizes of ERW steel pipe, but also can produce deep processing pipe with 100,000 tons. Our annual production capacity of hot dipped galvanized steel pipe is 200,000 tons, capacity of greenhouse engineering material is 250,000 tons and highway column and guardrail is 200,000 tons.

Tianjin TianYingTai Imports & Exports Trade Co., LTD is our export company. We have achieved trading capacity 60,000 tons in 2016. Our products are widely used in agriculture, animal husbandry , chemical industry, machinery, construction, utilities, vehicle and other fields. Our customers are from Asia, the Middle East, the Southeast Asia, European Union and other countries.


Quality Inspection:
1.Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate (the second private enterprise to obtain this certificate)
2.Control quality strictly.The first pass is the quality inspection on the production line,The second pass is full inspection of the production quality .
3.We have got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.


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