This classification including Construction Square Steel Pipe, usually they are used for construction purpose, also some customer use them for car , billboard, stents, fence etc.
Jinan Xin Jiyuan is specialized in ERW and Seamless square&rectangular tube/pipe, hollow section structure pipe, and galvanized pipe in China. Annual output reaches 1.5 million tons. We have 2 production lines, could producte square pipe from 20*20*1mm to 600*600*35mm, rectangular pipe from 20*30*1.2mm to 600*800*35mm. Xin Jiyuan can manufacture square rectangular pipes as per the standards of ASTM A500, JIS G3466, EN10219, EN10210,DIN2240, BS1387, AS1163. Steel Grade: A500 GR.A/B/C/D, SS400, STKR490, S355JR, S275JO, S275J2, S355J0, S355J2, C350, C350 L0 ect.
We have three heat treatment furnace, two furnace of 100 mt, and one furnace of 300mt, that means we could finish 500mt goods at the same time.
Construction Square Steel Pipe
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JINAN XIN JIYUAN SPECIAL SECTION TUBE CO., LTD. , https://www.squarepipes.com