S235JR steel surface classification

S235JR steel is the European standard of non alloy structural steel, which is equivalent to the national standard of Q235B, S235JR steel is carbon containing low carbon structural steel, widely used for welding, bolt connection, riveting structure.
S235JR steel chemical composition:

S235JR steel mechanical property: The yield strength is not less than 225
Tensile strength 360~510
The elongation is more than 18
S235JR steel surface classification:
Ordinary surface (FA)
Allow the surface to depth pickling surface (or height) is less than the thickness of the steel plate half of the tolerance of pitting, concave, scratches and other minor defects, local, but should ensure that the minimum thickness of steel plates and strips allowed.
Higher surface (FB)
The surface allows pickling does not affect the local shape of the defect, such as minor scratches, slight indentation, slight pitting, slight roll mark and color etc.

BBN steel is a professional S235JR steel supplier, and we register Hundreds of thousands of tons of ex-stock source on our spot trade platform. BBN steel' service has already spread many countries in Europe, America, Southeast Asia, Middle East, South America, Africa, and so on. We also have HI, 19Mn6, 17Mn4, 15Mo3 steel plate in stock more than 50000ton/per month.