tianchuang pipe Q235 steel pipes are used to deliver low pressure fluids. Such steel is generally smelted by the converter or open-hearth furnace. The main raw material is molten iron and scrap steel. The content of sulfur and phosphorus in steel is higher than that of... moreQ235 steel pipes are used to deliver low pressure fluids. Such steel is generally smelted by the converter or open-hearth furnace. The main raw material is molten iron and scrap steel. The content of sulfur and phosphorus in steel is higher than that of high-quality carbon structural steel. Generally, sulfur is ≤0.050% and phosphorus is ≤0.045%. #q235#steel#pipe
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