ISO/TS 4949:2016
Steel names based on letter symbols
Steel names based on letter symbols
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 9
- Дата публикации:
- 27 октября 2016 г.
- Издание:
- ISO TS 4949 edition 2 version 1
- ICS:
- 77.080.20
ISO/TS 4949:2016 specifies rules for the designation of internationally standardized steel grades by means of symbolic letters and numbers to express application and principal characteristics (e.g. mechanical, physical, chemical) so as to provide an abbreviated identification of steel grades. NOTE 1 In order to avoid ambiguity, the principal symbols established according to this document can be supplemented by additional symbols identifying additional characteristics of the steel or steel product, e.g. suitability for use at high or low temperatures, surface condition, treatment condition, deoxidation. NOTE 2 These rules can also be applied to nationally or regionally standardized steels.
Abstract
Overview
ISO/TS 4949:2016 is an international Technical Specification that defines rules for abbreviated steel names based on letter symbols. It provides a consistent system to designate steel grades by combining letters and numbers that express application and principal characteristics (mechanical, physical, chemical). The document ensures a unique, unambiguous steel name for each standardized steel grade and can be applied internationally or at national/regional levels.
Key Topics
- Unique steel names: one distinct designation per steel; symbols written without spaces.
- Groups of designation:
- Group 1 - steels designated by application and mechanical/physical properties (e.g., S = structural, P = pressure, L = linepipe, E = engineering). Numbers indicate specified minimum yield or tensile strength (MPa) or other relevant metrics.
- Group 2 - steels designated by chemical composition, subdivided into:
- Sub-group 2.1: Non-alloy steels (C prefix) - carbon indicated as 100 × %C.
- Sub-group 2.2: Non-alloy/alloy steels with minor alloying (
Технические детали
- Технический комитет
- ISO/TC 17 - Steel
- SKU
- ISO/TS 4949:2016
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