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S690Q

1.8928
carbon_steelhigh_strength_structural
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High-strength quenched and tempered structural steel — YS 690 MPa min. Part of EN 10025-6 series (S500Q to S960Q). Good weldability despite high strength (CEV controlled). Used for mobile cranes, mining equipment, truck chassis, bridge components, and any structure where weight reduction through higher strength is critical. "Q" = quenched, "L" variants add low-temp impact.

International equivalents

FlagStandardCountryGradeNumberMatch
🇺🇸ASTMUSAASTM A514 / A517 (approximate)—REF
🇪🇺ENEuropeS690Q / 1.89281.8928100%

Sources: ASTM A514, EN 10025-6

Chemical composition comparison (wt%)

Side-by-side: S690Q (EN 10025-6) vs S690Q / 1.8928 (EN) (EN 10025-6)

ElementS690Q (EN 10025-6)S690Q / 1.8928 (EN)Overlap
C—0–0.2%—
Si—0–0.8%—

Mechanical properties

Compatibility verdict

S690Q and S690Q / 1.8928: 100% composition match

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