Structural steel is a standard building material made from specific grades of steel and molded to a series of industry-standard sectional shapes (or "sections"). Structural steel grades are designed according to specific chemical compositions and mechanical properties. Grade S235JR is structural grade (S) with a minimum yield strength of 235 N/mm²m, but in which a "rolling condition" is provided. S235 has good high yield and tensile strength, but if the material is heat treaed at the temperature over 600℃, it will be affected.
It can be used as construction engineering, central air conditioning pipe,steel furniture and civil chimneys.
It also has other applications, such as fences, threading pipe, greenhouse pipe (trellis tube), column, light steel keel, sports equipment, tents, guardrail, etc..