Related Material — 65% match
based on chemical composition and mechanical property overlap.
EN 10028-3 P460NL2 (EN 10028-3:2017) and GB/T 1591 Q420NB (GB/T 1591:2018) are both steel grades.
EN 10028-3 P460NL2 is classified under Alloy Steel, while GB/T 1591 Q420NB is classified under Structural Steel — a different category, which is worth noting alongside the chemistry match below.
EN 10028-3 P460NL2 is typically used for flat products for pressure equipment, while GB/T 1591 Q420NB is commonly used for general structure for engineering (plates, strips, bars and sections).
EN 10028-3 P460NL2 is defined under European Standard (EN), originating from Europe, while GB/T 1591 Q420NB is defined under Guobiao Standards (GB/T), originating from China.
As per chemical composition, EN 10028-3 P460NL2 vs GB/T 1591 Q420NB is a 88.7% match.
As per mechanical properties, the match is 17.5%.
Combined, this makes them a related material overall at 65%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10028-3 P460NL2
GB/T 1591 Q420NB
Tensile Strength
570-730 MPa
520-680 MPa
Yield Strength
>=460 MPa
>=420 MPa
Elongation
>=16%
>=19%
Condition
Normalized, nominal thickness up to 16 mm
Normalized or normalizing rolled, nominal thickness or diameter up to 16 mm (tensile strength: up to 100 mm)
Typical Applications
EN 10028-3 P460NL2
Flat products for pressure equipment
GB/T 1591 Q420NB
General structure for engineering (plates, strips, bars and sections)
Key Differences
Different category: EN 10028-3 P460NL2 is Alloy Steel, GB/T 1591 Q420NB is Structural Steel.
Can EN 10028-3 P460NL2 Be Substituted With GB/T 1591 Q420NB?
EN 10028-3 P460NL2 and GB/T 1591 Q420NB share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between EN 10028-3 P460NL2 and GB/T 1591 Q420NB?
Different category: EN 10028-3 P460NL2 is Alloy Steel, GB/T 1591 Q420NB is Structural Steel.
Can EN 10028-3 P460NL2 be substituted with GB/T 1591 Q420NB?
EN 10028-3 P460NL2 and GB/T 1591 Q420NB share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.