This document specifies delivery requirements applicable to the surface finish of hot-rolled plates rolled on reversing mills and wide flats, with a nominal thickness ≥3 mm and ≤400 mm.

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This document specifies requirements for flat and long products of hot-rolled weldable fine-grain structural steels in the as-rolled (for SG grades only), normalized/normalized rolled and thermomechanical processed delivery conditions. It applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are intended for use in heavily loaded parts of welded or bolted structures. This document covers 13 grades and 6 qualities. Grades S275, S355, S390, S420, S460 and S500 are covered in Annex A. Grades SG245, SG290, SG325, SG345, SG365, SG415 and SG460 are covered in Annex B. Not all grades are available in all qualities, and some qualities have Charpy V-notch requirements. The steels specified in this document are applicable to hot-rolled plates, wide flats, sections and bars with a minimum nominal thickness of 3 mm and a maximum nominal thickness of 250 mm for grades S275N, S355N, S390N, S420N and S460N, a maximum nominal thickness of 150 mm for grades S275M, S355M, S390M, S420M, S460M, and S500M, a maximum nominal thickness of 200 mm for grades SG245, SG325 and SG415, a maximum nominal thickness of 100 mm for grades SG345, SG365 and SG460, and a maximum nominal thickness of 40 mm for grade SG290. This document does not include the following structural steels, some of which are covered by other International Standards: — Sheet and strip — refer to ISO TC 17/SC 12, Continuous mill flat rolled products; — Tubular products — refer to ISO TC 5/SC 1, Steel tubes. NOTE 1 Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO website. NOTE 2 In all parts of ISO 630, the term of "thickness" is considered as "nominal thickness", unless otherwise stated.

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This document specifies the general technical delivery conditions for steel flat and long products (plates/ sections/wide flats and bars) used principally for general-purpose structural steels. The steels specified in this document are intended for use in welded or bolted structures. The specific requirements for structural steels are given in the individual parts of ISO 630. This document does not include the following structural steels, some of which are covered by other International Standards: — sheet and strip: refer to ISO TC 17/SC 12 “Continuous mill flat rolled products”; — tubular products: refer to ISO TC 5/SC 1 “Steel tubes”. NOTE 1 Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO website. NOTE 2 In all parts of ISO 630, the term of "thickness" is considered as "nominal thickness", unless otherwise stated.

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This document specifies qualities for steels for general structural use. This document applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are used in the as-delivered condition and normally intended for welded or bolted structures. This document covers 8 steel grades and 4 qualities. Grades S235, S275, S355, and S460 are covered in Annex A. Grades SG205, SG250, SG285 and SG345 are covered in Annex B. Not all grades are available in all qualities, and some qualities have Charpy V‑notch requirements. The steels specified in this document are applicable to hot-rolled flat products and sections with: — thicknesses ≥ 3 mm and ≤ 150 mm for long products of steel grade S460 all qualities; — thicknesses ≥ 3 mm and ≤ 250 mm for long products or ≤ 400 mm for flat products of all other grades and qualities; and no restriction on nominal thickness for grades SG205, SG250, SG285, and SG345 for flat products, sections and long products. This document does not include the following structural steels, some of which are covered by other International Standards: — sheet and strip: refer to ISO TC 17/SC 12 “Continuous mill flat rolled products”; — tubular products: refer to ISO TC 5/SC 1 “Steel tubes”. NOTE 1 Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO website. NOTE 2 In all parts of ISO 630, the term of "thickness" is considered as "nominal thickness", unless otherwise stated.

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This document specifies qualities for high-yield-strength quenched and tempered structural steels. It applies to steel plates and wide flats rolled on a reversing mill which are used in the quenched and tempered condition and normally intended for welded or bolted structures. This document covers 10 grades and 5 qualities. Grades S460Q, S500Q, S550Q, S620Q, S690Q, S890Q and S960Q are covered in Annex A. Grades SG460Q, SG500Q, and SG700Q are covered in Annex B. Not all grades are available in all qualities, and some qualities have Charpy V-notch requirements. The steels specified in this document are applicable to hot-rolled flat products with a minimum nominal thickness of 3 mm and a maximum nominal thickness of 200 mm for grades S460Q, S500Q, S550Q, S620Q and S690Q, a maximum nominal thickness of 125 mm for grades S890Q and S960Q, a maximum nominal thickness of 100 mm for grades SG460Q and SG500Q and a maximum nominal thickness of 150 mm for grade SG700Q. This document does not include the following structural steels, some of which are covered by other International Standards: — Sheet and strip — refer to ISO TC 17/SC 12, Continuous mill flat rolled products; — Tubular products — refer to ISO TC 5/SC 1, Steel tubes. NOTE 1 Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO website. NOTE 2 In all parts of ISO 630, the term of "thickness" is considered as "nominal thickness", unless otherwise stated.

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This document specifies the requirements for weldable high yield strength plates and wide flats for cold forming. It does not apply to weldable structural steels, whether or not of special quality, which are covered by other International Standards, namely: — structural steels: ISO 630 (all parts); — high yield strength flat steel products: ISO 4950-1, ISO 4950-2 and ISO 4950-3; — hot-rolled steel sheet of higher yield strength with improved formability: ISO 5951; — sheet and strip: refer to ISO/TC 17, Steel, SC 12, Continuous mill flat rolled products; — tubular products; refer to ISO/TC 5, Ferrous metal pipes and metallic fittings, SC 1, Steel tubes.

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ISO 630-6:2014 specifies qualities for seismic-proof improved structural steels. It applies to steel plates with thicknesses of 6 mm or over and up to 125 mm, wide flats and hot-rolled sections up to 140 mm, which are used in the usual delivery conditions as given in 6.2 and normally intended for welded or bolted structures. It does not include the following structural steels, certain of which are covered by other International Standards: sheet and strip ? refer to ISO TC 17/SC 12, Continuous mill flat rolled products; tubular products ? refer to ISO TC 5/SC 1, Steel tubes.

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ISO 630-5:2014 specifies qualities for steels with improved atmospheric corrosion resistance for general structural use. It applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are used in the usual delivery conditions as given in 6.3, and normally intended for welded or bolted structures. It covers nine (9) grades and four (4) qualities. Not all grades are available in all qualities, and some qualities have Charpy V-notch requirements. It does not include the following structural steels, certain of which are covered by other International Standards: sheet and strip ? refer to ISO TC 17/SC 12 "Continuous mill flat rolled products"; tubular products ? refer to ISO TC 5/SC 1 "Steel tubes".

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ISO 7778:2014 specifies the criteria for through-thickness reduction of area properties specified in the direction of thickness perpendicular to the surface. It also specifies the test conditions by which conformance to the specified criteria is evaluated. ISO 7778:2014 applies to fully killed steel with a specified minimum yield strength or proof strength ≤960 MPa and supplied as plates, wide flats, or sections of thickness from 15 mm to 400 mm.

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ISO 7452:2013 specifies requirements for tolerances for hot-rolled steel plates made on a reversing mill with the following characteristics: nominal thickness: 3 mm ≤ t ≤ 400 mm; nominal width: w ≥ 600 mm. ISO 7452:2013 does not apply to stainless steel. ISO 7452:2013 does not include continuous mill products, custom-made plate, checker plate or bulb plate for flooring or wide flats.

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ISO 20723:2004 specifies delivery requirements that apply to the surface condition of hot-rolled sections with nominal thickness between greater than or equal to 3 mm and less than or equal to 160 mm. It applies to all surfaces excluding edges.

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This part of ISO 4951 specifies the requirements for the general delivery conditions of hot-rolled bars and sections, in high yield strength steels for use in bolted, riveted or welded structures1).

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This part of ISO 4951 specifies the requirements for hot-rolled bars and sections of diameter or thickness u 150 mm in high yield strength steels in the thermomechanically-rolled condition in the grades and qualities given in Table 1 and Table 2 for use in bolted, riveted or welded structures1).

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This part of ISO 4951 specifies the requirements for hot-rolled bars and sections of diameter or thickness u 150 mm in high yield strength steels in the normalized, normalized rolled or as-rolled delivery conditions in the grades and qualities given in Table 1 and Table 2 for use in bolted, riveted or welded structures1).

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Specifies the chemical and mechanical properties of high yield strength flat steel products supplied in the normalized or equivalent condition. Does not apply to products covered by other standards.

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Specifies the chemical and mechanical properties of high yield strength flat steel products supplied in the quenched and tempered condition. Does not apply to products covered by other standards.

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Specifies the methods of manufacture, acceptance conditions and marking of high yield strength flat steel products.

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This first edition as an International Standard constitues a technical revision of ISO Recommendation R 657-1:1968. ISO 657 consists of 21 parts integrating any shapes of sections. ISO 657-1 specifies dimensions of hot-rolled equal-leg angles.

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This first edition as an International Standard constitues a technical revision of ISO Recommendation R 657-2:1968. ISO 657 consists of 21 parts integrating any shapes of sections. ISO 657-2 specifies dimensions of hot-rolled unequal-leg angles.

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Specifies tolerances on the dimensions, shape and mass of wide flats of non-alloyed and alloyed steels (excluding stainless steels). Applies to wide flats, as defined in clause 3, of steels with a specified minimum yield strength equal to or less than 700 N/mm .

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Gives the dimensions and sectional properties in figures and a table.

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Specifies metric dimensional tolerances applicable to hot-rolled steel bars supplied in straight lengths in the form of round bars, square bars, hexagonal bars, octagonal bars, flat bars. The tolerances achievable by the manufacturer may vary with the steel types. Specifies several tolerance classes.

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Specifies dimensions and tolerances of metric series hot-rolled steel flat bars. A table shows preferred and second-preference sizes of width and mass.

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Specifies dimensions and tolerances of metric series hot-rolled steel square bars. Tables show width, corner radii, sectional areas and masses per unit length.

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Specifies dimensions and tolerances of metric series hot-rolled steel round bars. A table shows diameters, sectional areas and masses per unit length.

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Gives the designation of sloping flange channel sections in an example and the dimensions and sectional properties in a figure and a table.

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Gives the designation of sloping flange beam sections in an example and the dimensions and sectional properties in a figure and a table.

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Gives the designation of L sections in an example and the dimensions and sectional properties in a figure and a table. Includes tolerances on height of web and width of flange, on web thickness, on flange thickness as well as the maximum permissible camber, the out-of-square, the tolerances on flatness and on length.

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Includes tolerances on leg length, on thickness, cutting tolerance for length, tolerances on mass, straightness and out-of-square.

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This part of ISO 630 specifies qualities for high-yield-strength quenched and tempered structural steels. This part of ISO 630 applies to steel plates rolled on a reversing mill which are used in the quenched and tempered condition and normally intended for welded or bolted structures. This part of ISO 630 does not include the following structural steels, some of which are covered by other International Standards: — Sheet and strip — refer to ISO TC 17/SC 12, Continuous mill flat rolled products; — Tubular products — refer to ISO TC 5/SC 1, Steel tubes. NOTE Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO Web site. This part of ISO 630 covers 10 grades. Grades S460Q, S500Q, S550Q, S620Q, S690Q, S890Q and S960Q are covered in Annex A. Grades SG460Q, SG500Q, and SG700Q are covered in Annex B.

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This part of ISO 630 specifies requirements for flat and long products of hot-rolled weldable fine-grain structural steels in the as-rolled (for SG grades only), normalized/normalized-rolled and thermomechanical-rolled delivery conditions. It applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are intended for use in heavily loaded parts of welded or bolted structures. This part of ISO 630 covers 11 grades and four qualities. Grades S275, S355, S420 and S460 are covered in Annex A. Grades SG245, SG290, SG325, SG345, SG365, SG415 and SG460 are covered in Annex B. Not all grades are available in all qualities, and some qualities have Charpy V‑notch requirements. This part of ISO 630 does not include the following structural steels, some of which are covered by other International Standards: — Sheet and strip — refer to ISO TC 17/SC 12, Continuous mill flat rolled products; — Tubular products — refer to ISO TC 5/SC 1, Steel tubes. NOTE Lists of standards covered by ISO/TC 17/SC 12 and ISO/TC 5/SC 1 are available on the ISO Web site.

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ISO 630-2:2011 specifies qualities for steels for general structural use. ISO 630-2:2011 applies to steel plates rolled on a reversing mill, wide flats, hot-rolled sections and bars, which are used in the as-delivered condition and normally intended for welded or bolted structures.

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ISO 630-1:2011 specifies the general technical delivery conditions for steel flat and long products (plate/sections/wide flats and bars) used principally for general-purpose structural steels. The steels specified in ISO 630-1:2011 are intended for use in welded or bolted structures. The specific requirements for structural steels are given in the individual parts of ISO 630.

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ISO 4952:2006 specifies the chemical and mechanical characteristics, the methods of manufacture, the acceptance conditions and the marking of structural steel products with improved atmospheric corrosion resistance. ISO 4952:2006 applies to plates hot-rolled on reversing mills, having a thickness of 4 mm and over, wide flats, bars, and hot-rolled sections, generally used in the delivery condition and which, as a rule, form part of the bolted, riveted or welded structures in metal constructions and which have an improved atmospheric corrosion resistance.

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ISO 24314:2006 specifies qualities for seismic-purpose structural steels. This International Standard applies to steel plates with thicknesses of 6 mm or over and up to 125 mm, wide flats and hot-rolled sections, which are used in the as-delivered condition and normally intended for bolted, riveted or welded structures.

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ISO 6930-2:2004 specifies the requirements for weldable high yield strength steels for cold forming. It applies to plates and wide-flats, hot-rolled on reversing mills, both having a thickness between 4 mm and 50 mm (inclusive) and supplied in the normalized, normalized rolled and as-rolled delivery condition. It does not apply to weldable structural steels, whether or not of special quality, which are covered by other International Standards, namely high yield strength steel products for cold forming delivered in thermomechanically rolled condition (ISO 6930-1); structural steels (ISO 630); high yield strength flat steel products (ISO 4950-1, ISO 4950-2 and ISO 4950-3); hot-rolled steel sheet of higher yield strength with improved formability (ISO 5951).

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ISO 4952 specifies the chemical and mechanical characteristics, methods of manufacture, the acceptance conditions and the marking of structural steel products possessing improved atmospheric corrosion resistance. It applies to plates having a thickness of 4 mm and over, hot-rolled on reversing mills, wide flats, bars and hot-rolled sections generally used in the delivery condition and which, as a rule, form part of the bolted, riveted or welded structures in metal constructions and which have improved atmospheric corrosion resistance. ISO 4952 does not include the following steels, certain of which are covered by other International Standards: general purpose structural steels; steels for boilers and pressure purposes; steels for heat treatment; continuously hot-rolled structural steel sheet with improved atmospheric corrosion resistance; steel plates for forming and deep drawing.

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ISO 7452:2002 specifies requirements for tolerances for hot-rolled steel plates made on a reversing mill (excluding stainless steels) with the following characteristics: nominal thickness not less than 4 mm but no greater than 400 mm; nominal width not less than 600 mm; specified minimum yield strength not less than 700 N/mm2.

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Applies to steel plates with thicknesses of 3 mm and over, wide strips in coils with widths greater than or equal to 600 mm, and greater than 6 mm in thickness, wide flats, bars and hot-rolled sections generally used in the as-delivered condition and normally intended for bolted, riveted structures.

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These plates and wide flats are rolled on reversing mills. They have nominal thicknesses equal to or less than 150 mm. ISO 7788 specifies requirements, repair procedures, and in annex A definitions of products and discontinuities.

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Applies to hot-rolled, non-alloyed, alloyed and stainless steel plates of nominal thickness up to 150 mm and of width up to 4 000 mm whose specified minimum yield stress is equal to or less than 700 N/mm . Does not include round plate, custom-made plate, checker plate or bulb plate for flooring or wide flats.

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Specifies the criteria which shall be satisfied by the qualities of steel plate and wide flats for which trough-tickness reduction of area properties are specified in the direction of thickness perpendicular to the surface, and also the test conditions. Applies to thicknesses between 15 mm and 150 mm inclusive of fully killed steel with a specified minimum yield strength equal to or less than 500 N/mm .

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Specifies qualities of hot-rolled steel sheet 3 mm or more thick, flats and bars. The maximum composition limits are given in table 1. The steels in the delivery condition shall comply with the mechanical properties specified in table 2. An annex refers to location and orientation of samples of bars and sections.

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