TIANJIN YOUFA STEEL PIPE GROUP CO LTD.
Tianjin Youfa steel pipe group were founded on July 1st, 2000, with the headquarters location at the largest welded pipe production base in China-Daqiuzhuang Village, Tianjin city, which is a large-scale steel pipe manufacturing enterprise producing many kinds of pipe products GALVANIZED STEEL PIPE, ERW STEE LPIPE, SQUARE AND RECTANGULAR STEEL TUBE, GALVANIZED SQUARE PIPE, SPIRAL STEEL TUBES, STAINLESS STEEL PIPE, SCAFFOLDING, AND PIPE FITTINGS. have been rated as top 500 enterprises of China in the same industry,and as top 500 manufacturing of china.
Youfa brand was affirmed as a China renowned brand by SAIC trademark bureau in March 2008.
| Product | Hot Dip Galvanized Round Structural Steel Pipe |
| Material | Carbon Steel |
| Grade | Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q355 = S355JR / A500 Grade B Grade C |
| Standard | EN39, BS1139, EN10255,ASTM A53, ASTM A500, A36, ISO65, ANSI C80, DIN2440, JIS G3444,GB/T3091, GB/T13793 |
| Surface | Zinc coating 200-500g/m2 (30-70um) |
| Ends | Plain ends |
| with or without caps |
Hot dip galvanized steel pipe is a type of steel pipe that has been treated with galvanizing technology and has excellent anti-corrosion performance and a long service life. The manufacturing process involves immersing the steel pipe in a molten galvanizing solution to attach a uniform layer of zinc to its surface. This type of steel pipe is widely used in fields such as construction, transportation, and water conservancy, serving as structural support and protection. Its length can be customized according to demand, commonly ranging from several meters to tens of meters. Due to its excellent corrosion resistance, hot-dip galvanized steel pipes exhibit good durability in harsh environments, greatly extending their service life and reducing maintenance costs. In short, hot-dip galvanized steel pipes are efficient and reliable metal pipelines, providing solid support for various projects.
Galvanized Carbon Steel Pipe Size Chart :
|
DN |
OD |
ASTM A53 / API 5L / ASTM A795 |
BS1387 / EN10255 |
|||||
|
SCH10S |
STD SCH40 |
SCH80 |
Light |
Medium |
Heavy |
|||
|
MM |
INCH |
MM |
MM |
MM |
MM |
MM |
MM |
|
|
15 |
21.3 |
1/2" |
2.11 |
2.77 |
3.73 |
2 |
2.6 |
- |
|
20 |
26.7 |
3/4“ |
2.11 |
2.87 |
3.91 |
2.3 |
2.6 |
3.2 |
|
25 |
33.4 |
1" |
2.77 |
3.38 |
4.55 |
2.6 |
3.2 |
4 |
|
32 |
42.2 |
1-1/4" |
2.77 |
3.56 |
4.85 |
2.6 |
3.2 |
4 |
|
40 |
48.3 |
1-1/2" |
2.77 |
3.68 |
5.08 |
2.9 |
3.2 |
4 |
|
50 |
60.3 |
2" |
2.77 |
3.91 |
5.54 |
2.9 |
3.6 |
4.5 |
|
65 |
73 or 76 |
2-1/2" |
3.05 |
5.16 |
7.01 |
3.2 |
3.6 |
4.5 |
|
80 |
88.9 |
3" |
3.05 |
5.49 |
7.62 |
3.2 |
4 |
5 |
|
90 |
101.6 |
3-1/2" |
3.05 |
5.74 |
8.08 |
|||
|
100 |
114.3 |
4" |
3.05 |
6.02 |
8.56 |
3.6 |
4.5 |
5.4 |
|
125 |
141.3 |
5" |
3.4 |
6.55 |
9.53 |
5 |
5.4 |
|
|
150 |
168.3 |
6" |
3.4 |
7.11 |
10.97 |
5 |
5.4 |
|
|
200 |
219.1 |
8" |
3.76 |
8.18 |
12.7 |
|||
|
250 |
273.1 |
10" |
4.19 |
9.27 |
15.09 |
|||
Application:
Construction / building materials steel pipe
Scaffolding steel pipe
Fence post steel pipe
Fire protection steel pipe
Greenhouse steel pipe
Low pressure liquid, water, gas, oil, line pipe
Irrigation pipe
Handrail pipe
PIPE ENDS TREATMENT:
*THREADED BOTH ENDS (BS or ASTM standard)One end with plastic caps, and the other end with coupling;
*GROOVED ENDS (BS or ASTM standard);
*PLAIN ENDS (regular situation);
*Add plastic caps or not;
*BEVEL ENDS WITH PLASTIC CAPS( 30 degree bevel suitable to welding ).
Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL /FM, ISO9001/18001, FPC certificates.
PACKING AND DELIVERY: -- Round hollow section pipe
1. OD 219mm and below In hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles
2. above OD 219mm in bulk or according to custom opinion
3. 25 tons/container and 5 tons/size for a trial order;
4. For 20" container the max length is 5.8m;
5. For 40" container the max length is 11.8m.
About us:
Tianjin Youfa Steel Pipe Group Co., Ltd was founded on July 1st, 2000. There are totally about 9000 employees, 13 factories, 293 steel pipe production lines, 3 national accredited laboratory, and 1 Tianjin government accredited business technology center.
5 factories producing galvanized steel pipe under Youfa Group until 2021;
60 hot dipped galvanized steel pipe production lines;
4,240,000 tons annual output of gi pipe;
104,300 tons exported around the world.
Factories:
Tianjin Youfa Steel Pipe Group Co.,Ltd .-No.1 Branch;
Tangshan Zhengyuan Steel Pipe Co.,Ltd;
Handan Youfa Steel Pipe Co.,Ltd;
