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ISO 630-6:2023PublishedStructural steels — Part 6: Technical delivery conditions for seismic-proof improved structural steels for buildingInternational Standard · Published 8 Nov 2023 · ISO/TC 17/SC 3ISO 657-1:2026PublishedHot-rolled steel sections — Dimensions, sectional properties and tolerances — Part 1: Angles, sloping flange channels and sloping flange beamsInternational Standard · Published 27 Apr 2026 · ISO/TC 17/SC 3ISO 657-21:1983PublishedHot-rolled steel sections — Part 21: T-sections with equal depth and flange width — DimensionsInternational Standard · Published 1 Oct 1983 · ISO/TC 17/SC 3ISO 657-18:1980PublishedHot-rolled steel sections — Part 18: L sections for shipbuilding (metric series) — Dimensions, sectional properties and tolerancesInternational Standard · Published 1 Feb 1980 · ISO/TC 17/SC 3ISO 657-19:1980PublishedHot-rolled steel sections — Part 19: Bulb flats (metric series) — Dimensions, sectional properties and tolerancesInternational Standard · Published 1 Feb 1980 · ISO/TC 17/SC 3ISO 7452:2013PublishedHot-rolled steel plates — Tolerances on dimensions and shapeInternational Standard · Published 8 Jan 2013 · ISO/TC 17/SC 3ISO 20723:2004PublishedStructural steels — Surface condition of hot-rolled sections — Delivery requirementsInternational Standard · Published 6 Dec 2004 · ISO/TC 17/SC 3ISO 630-6:2014WithdrawnStructural steels — Part 6: Technical delivery conditions for seismic-improved structural steels for buildingInternational Standard · Published 15 Sep 2014 · ISO/TC 17/SC 3ISO 630:1980WithdrawnStructural steelsInternational Standard · Published 1 Nov 1980 · ISO/TC 17/SC 3ISO 657-1:1989WithdrawnHot-rolled steel sections — Part 1: Equal-leg angles — DimensionsInternational Standard · Published 13 Jul 1989 · ISO/TC 17/SC 3ISO 657-2:1989WithdrawnHot-rolled steel sections — Part 2: Unequal-leg angles — DimensionsInternational Standard · Published 26 Jun 1989 · ISO/TC 17/SC 3ISO 657-13:1981WithdrawnHot-rolled steel sections — Part 13: Tolerances on sloping flange beam, column and channel sectionsInternational Standard · Published 1 Apr 1981 · ISO/TC 17ISO 657-11:1980WithdrawnHot-rolled steel sections — Part 11: Sloping flange channel sections (Metric series) — Dimensions and sectional propertiesInternational Standard · Published 1 Sep 1980 · ISO/TC 17/SC 3ISO 657-15:1980WithdrawnHot-rolled steel sections — Part 15: Sloping flange beam sections (Metric series) — Dimensions and sectional propertiesInternational Standard · Published 1 Sep 1980 · ISO/TC 17/SC 3ISO 657-16:1980WithdrawnHot-rolled steel sections — Part 16: Sloping flange column sections (metric series) — Dimensions and sectional propertiesInternational Standard · Published 1 Feb 1980 · ISO/TC 17/SC 3ISO 657-5:1976WithdrawnHot-rolled steel sections — Part 5: Equal-leg angles and unequal-leg angles — Tolerances for metric and inch seriesInternational Standard · Published 1 Nov 1976 · ISO/TC 17/SC 3ISO/R 657-3:1969WithdrawnDimensions of hot-rolled steel sections — Part 3: Equal-leg angles — Inch series — Dimensions and sectional propertiesRecommendation · Published 1 Mar 1969 · ISO/TC 17ISO/R 657-4:1969WithdrawnDimensions of hot-rolled steel sections — Part 4: Unequal-leg angles — Inch series — Dimensions and sectional propertiesRecommendation · Published 1 Mar 1969 · ISO/TC 17ISO/R 657-7:1969WithdrawnDimensions of hot-rolled steel sections — Part 7: Parallel flange I-beams — Inch series — Dimensions and sectional propertiesRecommendation · Published 1 Mar 1969 · ISO/TC 17ISO/R 657-9:1969WithdrawnDimensions of hot-rolled steel sections — Part 9: Parallel flange column sections — Inch series — Dimensions and sectional propertiesRecommendation · Published 1 Mar 1969 · ISO/TC 17ISO/R 657-1:1968WithdrawnDimensions of hot-rolled steel sections — Part 1: Equal-leg angles — Metric series — Dimensions and sectional propertiesRecommendation · Published 1 Feb 1968 · ISO/TC 17ISO/R 657-2:1968WithdrawnDimensions of hot-rolled steel sections — Part 2: Unequal-leg angles — Metric series — Dimensions and sectional propertiesRecommendation · Published 1 Feb 1968 · ISO/TC 17ISO 4951-1:2001WithdrawnHigh yield strength steel bars and sections — Part 1: General delivery requirementsInternational Standard · Published 15 Feb 2001 · ISO/TC 17/SC 3ISO 4951-2:2001WithdrawnHigh yield strength steel bars and sections — Part 2: Delivery conditions for normalized, normalized rolled and as-rolled steelsInternational Standard · Published 8 Feb 2001 · ISO/TC 17/SC 3ISO 4951-3:2001WithdrawnHigh yield strength steel bars and sections — Part 3: Delivery conditions for thermomechanically-rolled steelsInternational Standard · Published 15 Feb 2001 · ISO/TC 17/SC 3