BS ISO 3573-2012 pdf free download.Hot-rolled carbon steel sheet of commercial and drawing qualities.
This International Standard applies to hot-rolled carbon steel sheet of commercial and drawing qualities. Hot-
rolled steel sheet is suitable for many applications where the presence of oxide or scale, or normal surface imperfections disclosed after removal of oxide or scale, are not objectionable. It is not suitable for applications where the surface is of prime importance.
NOTE This International Standard does not cover steel sheet that is to be subjected to subsequent rerolling.
2 Normative references
The following standards referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature ISO 16160, Continuously hot-rolled steel sheet products — Dimensional and shape tolerances.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
hot-rolled steel sheet
product obtained by rolling heated steel through a continuous hot strip mill or another hot-rolling process that produces a coiled product to the required sheet thickness and tolerances
3.2 hot-rolled descaled steel sheet
hot-rolled steel sheet from which oxide or scale has been removed, commonly by pickling in an acid solution or by mechanical means such as grit blasting
NOTE 1 Some change in properties can result from descaling.
NOTE 2 Descaling can also be performed by appropriate mechanical means.
3.3 skIn pass
light cold-rolling of hot-rolled steel sheet or hot-rolled descaled steel
NOTE The purpose of the skin pass is to produce a higher degree of surface smoothness and thereby improve the surface appearance. The skin pass also temporarily minimizes the occurrence of a surface condition known as stretcher strain (Luder’s Lines) or fluting during the fabrication of finished parts. The skin pass also controls and improves flatness. Some increase in hardness and loss of ductility will result from skin passing.
3.4 mIll edge
normal side edge without any definite contour produced in hot rolling, possibly containing some irregularities such as cracked or torn edges or thin (feathered) edges
3.5 sheared edge normal edge obtained by shearing, slitting or trimming a mill edge product
NOTE Normal processing does not necessarily provide a definite positioning of the slitting.
3.6 aluminum killed steel which has been deoxidized with aluminum sufficiently to prevent the evolution of gas during solidification
4 Dimensions
4.1. Hot-rolled carbon steel sheet is commonly produced in the range of thickness 0,8 mm to 12,5 mm inclusive, and in widths of 600 mm and over, in coils and cut lengths.
5 Conditions of manufacture
5.1 Chemical composition
The chemical composition (heat analysis) shall not exceed the values 9iven in Tables 1 and 2. On request, a report of the heat analysis shall be made to the purchaser.
Each of the elements listed in Table 2 shall be included in the report of the heat analysis. When the amount of copper, nickel, chromium or molybdenum present is less that 0,02 %, the analysis result may be reported as < 0,02 %“.
A verification analysis may be made by the purchaser to verify the specified analysis of the prnduct and shall take into consideration any normal heterogeneity. Non-killed steels (such as rimmed or capped steels) are not technologically suited to product analysis. For killed steels, the sampling method and deviation limits shall be agreed upon between the interested parties at the time of ordering. The product analysis tolerances are shown in Table 3.
The processes used in making the steel and in manufacturing zinc-coated sheet are left to the discretion of the manufacturer. When requested, the purchaser shall be informed of the steel-making process used.BS ISO 3573 pdf free download.