Hebei Tianchuang Pipe Co., Ltd. is a professional steel pipe manufacturers in china. We provide HDG Pipe, ERW Pipe, highway guardrail for sale, protection pipe, fire protection pipe, fire pipe supply, fire hydrant pipe and so on. Want to know about fire protection piping specifications? Please contact us.

Q235 steel pipe is 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%.