Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of erw galvanized square steel tubing astm standard structural pipe in China. Welcome to consult the quotation and import cheap erw galvanized square steel tubing astm standard structural pipe made in China here from our factory.
Product Description
I.Product Basic Info:
| Name | ERW steel square tubing standard square galvanized steel pipe |
| Surface | Galvanized (200-220g/m2 usual,can be request by customer) |
| Material |
Q195,Q215,Q235,Q345 |
| MOQ | 5 tons for normal size and material |
| WT | As customer's requests |
| Payment terms | TT deposit + the balanced against BL copy / LC or 100% LC at sight |
| Trade terms | FOB,C&F,CIF,EXW |
| Length | fixed or random,as customer request. |
| End Treatment | Plain(can be threaded,punch,shrink,extension... ) |
| Lead time |
within 7 days from stock with 6m length (stock pipe with our factory name in Chinese),20-25 days for customized pipe according to the qty |
2.Product Chemical Composition & Mechanical Properties :
| Grade | Chemical Composition | Mechanical Properties | ||||||
| C | Mn | Si | S | P | Yield | Tensile | Elongati | |
| Strength Mpa | Strenth Mpa | -on % | ||||||
| Q195 | 0.06-0.12 | 0.25-0.50 | ≤0.30 | ≤0.045 | ≤0.05 | ≥195 | 315-430 | ≥33 |
| Q235 | 0.12-0.20 | 0.30-0.67 | ≤0.30 | ≤0.045 | ≤0.04 | ≥235 | 375-500 | ≥26 |
| Q345 | ≤0.20 | 1.00-1.60 | ≤0.55 | ≤0.04 | ≤0.04 | ≥345 | 470-630 | ≥22 |
3.Product standard test:
| Q195≈ | Grade B,SS330 SPHC,S185 |
| Q235 ≈ | Grade D,SS400,S235 |
| Q345 ≈ | Grade 50/345,SPFC590,E/S335 |


1.Thailand, we have the lowest anti-dumping duties 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-top service
4.Is the top five in Tianjin
5.We have been cooperate with Alibaba for 13 years, we are gold supplier and assessed supplier, we are one of the 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.

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