Tianjin Yuantai Group has 65 black high-frequency welded steel pipe production lines, 26 hot-dip galvanized steel pipe processing production lines, 10 pre-galvanized steel pipe production lines, 8 photovoltaic bracket production lines, 6 ZMA steel pipe production lines, 3 spiral welded pipe production lines, 2 ZMA steel coil production lines, and 1 JCOE production line. The size range of square pipes is 10x10x0.5mm~1000x1000X60mm, the size range of rectangles is 10x15x0.5mm~800x1200x60mm, and the size range of round pipes is 10.3mm~2032mm. The wall thickness range is 0.5~80mm. It has more than 100 technical patents for steel hollow profiles.

Production types include ERW, HFW, LSAW, SSAW, seamless, hot rolled, cold drawn, hot finished, etc.



Q195 = S195 / A53 Grade A



Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2



Q345 = S355JR / A500 Grade B Grade C



Q235 Al killed = EN39 S235GT



L245 = Api 5L / ASTM A106 Grade B

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