Hot Dip Galvanized Rectangular and Square Hollow Steel Pipe
|Product||Galvanized Square and Rectangular Steel Pipe|
|Grade||Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
Q345 = S355JR / A500 Grade B Grade C
|Standard||DIN 2440, ISO 65, EN10219GB/T 6728
JIS 3444 /3466
ASTM A53, A500, A36
|Surface||Zinc coating 200-500g/m2 (30-70um)|
|Specification||OD: 20*20-500*500mm ; 20*40-300*500mm
Construction / building materials steel pipe
Fence post steel pipe
Solar mounting components
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
Tianjin Youfa Steel Pipe Group Co., Ltd was founded on July 1st, 2000. There are totally about 8000 employees, 9 factories, 179 steel pipe production lines, 3 national accredited laboratory, and 1 Tianjin government accredited business technology center.
12 hot galvanized square and rectangular steel pipe production lines
Tianjin Youfa Dezhong Steel Pipe Co.,Ltd;
Handan Youfa Steel Pipe Co.,Ltd;
Shanxi Youfa Steel Pipe Co., Ltd