What is the yield strength of Q235 steel?
2 Answers
Q235 has a yield strength of 235MPa. Q235 ordinary carbon structural steel is also called A3 plate. Ordinary carbon structural steel - ordinary plate is a type of steel material. The Q represents the yield limit of this material, and the following 235 refers to the yield value of this material, which is around 235MPa. The yield value decreases as the thickness of the material increases (plate thickness/diameter ≤16mm, yield strength is 235MPa). Below are the usage introductions: 1. Widely used in construction and engineering structures: used to make steel bars or construct factory building frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc. It is also widely used as mechanical parts with relatively low performance requirements. C and D grade steel can also be used for certain professional steel applications. 2. Used for various mold handles and other non-critical mold parts.
We commonly use Q235 steel on construction sites. Experienced welders all know its yield strength is standardized at 235 MPa. This strength value represents the critical point where the material begins to deform - below this threshold, it can return to its original shape. When actually designing steel structures, this number is fundamental for calculating the load-bearing capacity of columns and beams. However, note that steel plate thickness affects actual performance. For instance, new thin plates within 12mm generally test at 235 MPa, while extra-thick 40mm plates may drop to 225 MPa. Just last week, a new intern calculating factory support structures used this 235 MPa value with a 1.67 safety factor.
