Performance comparison between S355K2+N steel plate and Q355NE steel plate

Standard analysis of S355K2+N steel plate and Q355NE steel plate:
S355K2+N steel plate is the European standard alloy structural steel plate, and the technical standard is EN10025-2; The Q355NE steel plate is a national standard alloy steel plate, and the technical standard is GB/T1591-2018. In fact, Q355NE means Q355E+N. The "N" of two grades indicates the delivery status: normalizing or normalizing rolling.

Terminology of S355K2+N steel plate and Q355NE steel plate:
S355K2+N steel plate means: S means "yield" of European standard alloy steel, 355 means the yield strength of steel plate is not less than 355MPa, K2 means - 40℃ low temperature impact of steel plate, and N means delivery of steel plate in normalized/normalized rolling state.

Q355NE steel plate means: Q means "yield" of the national standard alloy steel plate, 355 means that the yield strength of the steel plate is not less than 355MPa, N means that the delivery status of the steel plate is normalizing/normalizing rolling, and E means that the impact temperature of the steel plate is - 40℃ degrees.

Composition and properties of S355K2+N steel plate and Q355NE steel plate:
Generally, S355K2+N steel plate is not as strict as the national standard Q355NE in terms of flaw detection grade. There is a little difference between the two in terms of composition and performance of steel plate. For details, please refer to the corresponding technical standards.