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S420NL

1.8912
carbon_steelfine_grain
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High-strength normalized fine-grain structural steel. 420 MPa yield with -50°C impact toughness. Between S355NL and S460NL in the strength ladder. Used for bridges, crane structures, pressure vessels, and structural components in cold environments.

International equivalents

FlagStandardCountryGradeNumberMatch
🇨🇳GBChinaQ420E—REF
🇪🇺ENEuropeS420NL1.8912100%

Sources: GB/T 1591, EN 10025-3:2019

Chemical composition comparison (wt%)

Side-by-side: S420NL (EN 10025-3) vs S420NL (EN) (EN 10025-3:2019)

ElementS420NL (EN 10025-3)S420NL (EN)Overlap
C—0–0.2%—
Si—0–0.6%—

Mechanical properties

Compatibility verdict

S420NL and S420NL: 100% composition match

Related materials

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S355JR

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S235JR

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