4948/2 International Standard (TSO) INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONOMEKAYHAPOAHAA OPrAHM3AMA HO CTAHAAPTM3AUWWORGANISATION INTE RNATIONALE DE NORMALISATION Steels - Classification Part 2 : Classification of unalloyed and alloy steels according to main quality classes and main property or application characteristics Aciers -- Classification -- Partie 2 : Classification des aciers alliées et aciers non alliés en fonction des principales classes de qualite et des caracteristiques principales de propriéte ou d'application First edition -- 1981-09-01 D 4948/2-1981 (E) UDC 629.14/.15 Ref. No. 1SO 4948/2-1981 (E) Descriptors : steels, unalloyed steels, alloy steels, classifications, chemical composition Price based on 7 pages Not forResale Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (iso member bodies): The 'work of developing Inter- national Standards is carried out through IsO technical committees: Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. International Standard ISO 4948/2 was developed by Technical Committee ISO/TC 17, Steel, and was circulated to the member bodies in June 1980. It has been approved by the member bodies of the following countries : Hungary Australia Poland Austria India Romania Belgium Iran South Africa, Rep. of Bulgaria Ireland Spain Canada Italy Sweden Chile Japan Turkey China Korea, Dem. P. Rep. of United Kingdom Korea, Rep. of USA Czechoslovakia USSR Egypt, Arab Rep. of Mexico Netherlands Finland Venezuela France New Zealand Norway Germany, F.R. No member body expressed disapproval of the document. @ International Organization for. Standardization, 1981 Printed in Switzerland Copyright International Organization for Standardization Notfor Resa INTERNATIONAL STANDARD ISO 4948/2-1981 (E) Steels 一 Classification Part 2 : Classification of unalloyed and alloy steels application characteristics 1 Scope and field of application ISO/R 1111/1, Cold-reduced tinplate and cold-reduced black- plate -- Part 1 : Sheet.1) This part of Iso 4948 lays down a classification of unalloyed and alloy steels according to main quality classes and main Iso 1111/2, Cold-reduced tinplate and cold-reduced black- property or application characteristics. plate -- Part 2 : Coil for subsequent cutting into sheet. Part 1 lays down the classification of steels into unalloyed and Iso 2604, Steel products for pressure purposes alloy steels based on chemical composition. Part 1 : Forgings. Part 2 : Wrought seamless tubes. Part 3 : Electric resistance and induction-welded tubes. 2 References Part 4 : Plates. Part 6 : Submerged arc longitudinally or spirally welded ISo 630, Structural steels. steel tubes. ISO/R 683/1, Heat-treated steels, alloy steels and free-cutting ISo 3183, Oil and natural gas industries - Steel line pipe. steels -- Part 1 : Quenched and tempered unalloyed steels. 1) ISO 3573, Hot-rolled carbon steel sheet of commercial and ISO/R 683/3, Heat-treated steels, alloy steels and free-cutting drawing qualities. steels - Part 3 : Wrought quenched and tempered unalloyed steels with controlled sulphur content. 1) ISO 3574, Cold-reduced carbon steel sheet of commercial and drawing qualities. ISO/R 683/5, Heat-treated steels, alloy steels and free-cutting steels -- Part 5 : Wrought quenched and tempered manganese ISo 3575, Continous hot-dip zinc-coated carbon steel sheet of steels. 1) commercial, lock-forming and drawing qualities. ISo/R 683/9, Heat-treated steeis, alloy steels and free-cutting Iso 3755, Cast steels for general engineering purposes.