S355J2G3 adopts the European standard EN10025-2 and is compiled by ECISS/TC10 Technical Committee on Grade and Quality of Structural Steel. Implementing the European Standards in CEN Member States, including Austria, Belgium, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland And Britain.
Brand Composition
The letter S stands for structural steel.
S355j2g3: Low alloy high strength structural steel Q345 S355J2G3 is roughly equivalent to GB's Q345D S355J2G3. J2G3 means that the delivery state is normalized, and the impact energy at -20 C is 27J, G3 and G4 are the means to characterize the deoxidization mode.
Composition and properties
Composition C < 0.20, Si < 0.55, Mn < 1.60, P < 0.035, S < 0.035. Deoxygenation method FF.
Sigma S
63 < d < 80 < d < 80 < d < 100 < d < 150 < d < 200 < d < 250 < d < 100 < d < 150 < d < 200 < d < 250 < d < 400
325 315 295 285 275 265
Sigma B
3 < d < 100 < d < 150 < d < 250 < d < 100 < d < 150 < d < 250 < d < 400
470-630 450-600 450-600 450-600 450-600
Delta (elongation) > 17% (250 < d < 400)
Impact energy (-20 C) > 27J (V incision)
