HPB300/HRB400/HRB500 Wire rods
It is mainly composed of iron (Fe) and a small amount of carbon (C), manganese (Mn), sulfur (S), phosphorus (P) and other elements. Strength and elongation characteristics: The tensile strength is about 300MPa, which is a relatively low-strength steel bar, but the elongation is large, and the design strength value is generally 270N/mm². Easy to identify by appearance: As a hot-rolled round grade one steel bar, it is easy to identify at the construction site due to its round appearance.
