Strong Match — 98.3% match
based on chemical composition and mechanical property overlap.
GB/T 1591 Q355ND (GB/T 1591:2018) and EN 10025-3 S355N (EN 10025-3:2019) are both steel grades.
Both fall under the Structural Steel category.
GB/T 1591 Q355ND is defined under Guobiao Standards (GB/T), originating from China, while EN 10025-3 S355N is defined under European Standard (EN), originating from Europe.
As per chemical composition, GB/T 1591 Q355ND vs EN 10025-3 S355N is a 97.5% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 98.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
GB/T 1591 Q355ND
EN 10025-3 S355N
Tensile Strength
470-630 MPa
470-630 MPa
Yield Strength
>=355 MPa
>=355 MPa
Elongation
>=22%
>=22%
Condition
Normalized or normalizing rolled, nominal thickness or diameter up to 16 mm (tensile strength: up to 100 mm)
Normalized or normalized rolled (N), nominal thickness up to 16 mm (tensile strength up to 100 mm), Table 4
Typical Applications
GB/T 1591 Q355ND
General structure for engineering (plates, strips, bars and sections)
EN 10025-3 S355N
Not documented
Can GB/T 1591 Q355ND Be Substituted With EN 10025-3 S355N?
GB/T 1591 Q355ND and EN 10025-3 S355N overlap closely enough on chemistry and mechanical properties that EN 10025-3 S355N is often considered as a substitute for GB/T 1591 Q355ND in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between GB/T 1591 Q355ND and EN 10025-3 S355N?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 1591 Q355ND be substituted with EN 10025-3 S355N?
GB/T 1591 Q355ND and EN 10025-3 S355N overlap closely enough on chemistry and mechanical properties that EN 10025-3 S355N is often considered as a substitute for GB/T 1591 Q355ND in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.