Steel names based on letter symbols

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Language(s)

English

Published date

27-10-2016

Publisher

International Organization for Standardization

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.

Committee	ISO/TC 17
DevelopmentNote	Supersedes ISO TR 4949. (08/2003)
DocumentType	Technical Specification
Pages	9
PublisherName	International Organization for Standardization
Status	Current
Supersedes	ISO/TS 4949:2003 ISO/TR 4949:1989

DIN EN ISO 16120-2:2015-10 (Draft)	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 2: SPECIFIC REQUIREMENTS FOR GENERAL PURPOSE WIRE ROD (ISO 16120-2:2017)
17/30347199 DC : 0	BS EN ISO 204 - METALLIC MATERIALS - UNIAXIAL CREEP TESTING IN TENSION - METHOD OF TEST
09/30169305 DC : 0	BS EN ISO 16120-2 - NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 2: SPECIFIC REQUIREMENTS FOR GENERAL PURPOSE WIRE ROD
12/30250149 DC : 0	BS ISO 16143-2 - STAINLESS STEELS FOR GENERAL PURPOSES - PART 2: SEMI-FINISHED PRODUCTS, BARS, RODS AND SECTIONS
15/30287647 DC : 0	BS EN ISO 16120-4 - NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 4: SPECIFIC REQUIREMENTS FOR WIRE ROD FOR SPECIAL APPLICATIONS
17/30337413 DC : 0	BS EN ISO 4957 - TOOL STEELS
UNE-EN ISO 16120-2:2017	Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general purpose wire rod (ISO 16120-2:2017)
17/30346753 DC : 0	BS ISO 9328-3 - STEEL FLAT PRODUCTS FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 3: WELDABLE FINE GRAIN STEELS, NORMALIZED
13/30279057 DC : 0	BS ISO 683-4 - HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 4: FREE-CUTTING STEELS
ISO 6935-1:2007	Steel for the reinforcement of concrete Part 1: Plain bars
11/30191086 DC : 0	BS ISO 12633-1 - HOT-FINISHED STRUCTURAL HOLLOW SECTIONS OF NON-ALLOY AND FINE GRAIN STEELS - PART 1: TECHNICAL DELIVERY CONDITIONS
15/30316161 DC : 0	BS ISO 6931-1 - STAINLESS STEELS FOR SPRINGS - PART 1: WIRE
04/30069217 DC : DRAFT FEB 2004	ISO 16143-3 - STAINLESS STEELS FOR GENERAL PURPOSES - PART 3: WIRE
BS EN ISO 16120-4:2017	Non-alloy steel wire rod for conversion to wire Specific requirements for wire rod for special applications
ISO 9328-1:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 1: General requirements
ISO 16143-2:2014	Stainless steels for general purposes Part 2: Corrosion-resistant semi-finished products, bars, rods and sections
EN ISO 16120-2:2017	Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general purpose wire rod (ISO 16120-2:2017)
08/30166437 DC : DRAFT JAN 2008	BS ISO 15510 - STAINLESS STEELS - CHEMICAL COMPOSITION
I.S. EN ISO 16120-4:2017	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 4: SPECIFIC REQUIREMENTS FOR WIRE ROD FOR SPECIAL APPLICATIONS (ISO 16120-4:2017)
BS EN ISO 16120-3:2011	Non-alloy steel wire rod for conversion to wire Specific requirements for rimmed and rimmed substitute, low-carbon steel wire rod
ISO 683-2:2016	Heat-treatable steels, alloy steels and free-cutting steels Part 2: Alloy steels for quenching and tempering
11/30230618 DC : 0	BS ISO 683-2 - HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 2: ALLOY STEELS FOR QUENCHING AND TEMPERING
DIN EN ISO 16120-4:2015-10 (Draft)	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 4: SPECIFIC REQUIREMENTS FOR WIRE ROD FOR SPECIAL APPLICATIONS (ISO 16120-4:2017)
12/30272892 DC : 0	BS ISO 15510 - STAINLESS STEELS - CHEMICAL COMPOSITION
BS ISO 16143-1:2014	Stainless steels for general purposes Corrosion-resistant flat products
13/30247437 DC : 0	BS EN ISO 683-17 - HEAT-TREATED STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 17: BALL AND ROLLER BEARING STEELS (ISO/DIS 683-17:2013)
DIN EN ISO 204 E : 2009	METALLIC MATERIALS - UNIAXIAL CREEP TESTING IN TENSION - METHOD OF TEST
UNE-EN ISO 16120-3:2012	Non-alloy steel wire rod for conversion to wire - Part 3: Specific requirements for rimmed and rimmed substitute, low-carbon steel wire rod (ISO 16120-3:2011)
UNI EN ISO 16120-3 : 2011	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 3: SPECIFIC REQUIREMENTS FOR RIMMED AND RIMMED SUBSTITUTE, LOW-CARBON STEEL WIRE ROD
ISO 683-1:2016	Heat-treatable steels, alloy steels and free-cutting steels Part 1: Non-alloy steels for quenching and tempering
I.S. EN ISO 204:2009	METALLIC MATERIALS - UNIAXIAL CREEP TESTING IN TENSION - METHOD OF TEST
ISO 9328-6:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 6: Weldable fine grain steels, quenched and tempered
I.S. EN ISO 16120-2:2017	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 2: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE WIRE ROD (ISO 16120-2:2017)
PREN ISO 683-17 : DRAFT 2013	HEAT-TREATED STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 17: BALL AND ROLLER BEARING STEELS (ISO/DIS 683-17:2013)
ISO 16143-1:2014	Stainless steels for general purposes Part 1: Corrosion-resistant flat products
ISO 3183-1:1996	Petroleum and natural gas industries — Steel pipe for pipelines — Technical delivery conditions — Part 1: Pipes of requirement class A
ISO 15510:2014	Stainless steels Chemical composition
I.S. EN ISO 683-17:2014	HEAT-TREATED STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 17: BALL AND ROLLER BEARING STEELS (ISO 683-17:2014)
17/30346747 DC : 0	BS ISO 9328-1 - STEEL FLAT PRODUCTS FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 1: GENERAL REQUIREMENTS
BS ISO 16143-3:2014	Stainless steels for general purposes Wire
09/30196508 DC : 0	BS ISO 9328-1 - STEEL FLAT PRODUCTS FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 1: GENERAL REQUIREMENTS
09/30196607 DC : 0	BS ISO 9328-2 - STEEL FLAT PRODUCTS FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 2: NON-ALLOY AND ALLOY STEELS WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIES
14/30258987 DC : 0	BS ISO 6935-2 - STEEL FOR THE REINFORCEMENT OF CONCRETE - PART 2: RIBBED BARS
12/30250152 DC : 0	BS ISO 16143-3 - STAINLESS STEELS FOR GENERAL PURPOSES - PART 3: WIRE
14/30295082 DC : 0	BS ISO 683-3 - HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 3: CASE HARDENING STEELS
11/30230615 DC : 0	BS ISO 683-1 - HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 1: NON-ALLOY STEELS FOR QUENCHING AND TEMPERING
ISO 6931-2:2005	Stainless steels for springs Part 2: Narrow strip
ISO 9328-2:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 2: Non-alloy and alloy steels with specified elevated temperature properties
NF EN ISO 16120-3 : 2011	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 3: SPECIFIC REQUIREMENTS FOR RIMMED AND RIMMED SUBSTITUTE, LOW CARBON STEEL WIRE ROD
ISO 12633-1:2011	Hot-finished structural hollow sections of non-alloy and fine grain steels — Part 1: Technical delivery conditions
ISO 6931-1:2016	Stainless steels for springs Part 1: Wire
DIN EN ISO 683-17:2015-02	Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels (ISO 683-17:2014)
UNI EN ISO 683-17 : 2014	HEAT-TREATED STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 17: BALL AND ROLLER BEARING STEELS
BS EN ISO 16120-2:2017	Non-alloy steel wire rod for conversion to wire Specific requirements for general purpose wire rod
15/30296029 DC : 0	BS ISO 4955 - HEAT-RESISTANT STEELS
04/300984 DC : DRAFT JAN 2004	BS ISO 4955 - HEAT-RESISTING STEELS
BS ISO 16143-2:2014	Stainless steels for general purposes Corrosion-resistant semi-finished products, bars, rods and sections
ISO 9330-5:2000	Welded steel tubes for pressure purposes — Technical delivery conditions — Part 5: Submerged arc-welded unalloyed and alloyed steel tubes with specified low temperature properties
BS ISO 683-5:2017	Heat treatable steels, alloy steels and free-cutting steels Nitriding steels
ISO 9328-4:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 4: Nickel-alloy steels with specified low temperature properties
12/30250146 DC : 0	BS ISO 16143-1 - STAINLESS STEELS FOR GENERAL PURPOSES - PART 1: FLAT PRODUCTS
04/301144 DC : DRAFT JAN 2004	ISO 6931-2 - STAINLESS STEELS FOR SPRINGS - PART 2: NARROW STRIP
11/30230612 DC : 0	BS ISO 683-11 - HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 11: CASE-HARDENING STEELS
BS ISO 15510:2014	Stainless steels. Chemical composition
15/30287644 DC : 0	BS EN ISO 16120-2 - NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 2: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE WIRE ROD
ISO 9328-5:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 5: Weldable fine grain steels, thermomechanically rolled
I.S. EN ISO 16120-3:2011	NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 3: SPECIFIC REQUIREMENTS FOR RIMMED AND RIMMED SUBSTITUTE, LOW-CARBON STEEL WIRE ROD
ISO 683-18:2014	Heat-treatable steels, alloy steels and free-cutting steels — Part 18: Bright steel products
UNE-EN ISO 204:2010	Metallic materials - Uniaxial creep testing in tension - Method of test (ISO 204:2009)
EN ISO 204:2009	Metallic materials - Uniaxial creep testing in tension - Method of test (ISO 204:2009)
ISO 9327-5:1999	Steel forgings and rolled or forged bars for pressure purposes — Technical delivery conditions — Part 5: Stainless steels
ISO 4955:2016	Heat-resistant steels
ISO 683-11:2012	Heat-treatable steels, alloy steels and free-cutting steels Part 11: Case-hardening steels
ISO 16120-4:2017	Non-alloy steel wire rod for conversion to wire — Part 4: Specific requirements for wire rod for special applications
ISO 16120-3:2011	Non-alloy steel wire rod for conversion to wire — Part 3: Specific requirements for rimmed and rimmed substitute, low-carbon steel wire rod
BS EN ISO 683-17:2014	Heat-treated steels, alloy steels and free-cutting steels Ball and roller bearing steels
ISO 683-17:2014	Heat-treated steels, alloy steels and free-cutting steels — Part 17: Ball and roller bearing steels
ISO 16120-2:2017	Non-alloy steel wire rod for conversion to wire — Part 2: Specific requirements for general purpose wire rod
UNE-EN ISO 683-17:2015	Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels (ISO 683-17:2014)
EN ISO 683-17:2014	Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels (ISO 683-17:2014)
17/30346756 DC : 0	BS ISO 9328-4 - STEEL FLAT PRODUCTS FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 4: NICKEL-ALLOY STEELS WITH SPECIFIED LOW TEMPERATURE PROPERTIES
14/30284697 DC : 0	BS ISO 683-5 - HEAT TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 5: NITRIDING STEELS
09/30169308 DC : 0	BS EN ISO 16120-3 - NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 3: SPECIFIC REQUIREMENTS FOR RIMMED AND RIMMED SUBSTITUTE, LOW CARBON STEEL WIRE ROD
ISO 9330-4:2000	Welded steel tubes for pressure purposes — Technical delivery conditions — Part 4: Submerged arc-welded unalloyed and alloyed steel tubes with specified elevated temperature properties
ISO 204:2009	Metallic materials Uniaxial creep testing in tension Method of test
13/30256266 DC : 0	BS ISO 683-18 - HEAT-TREATABLE STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 18: BRIGHT STEEL PRODUCTS
09/30169311 DC : 0	BS EN ISO 16120-4 - NON-ALLOY STEEL WIRE ROD FOR CONVERSION TO WIRE - PART 4: SPECIFIC REQUIREMENTS FOR WIRE ROD FOR SPECIAL APPLICATIONS
ISO 683-4:2016	Heat-treatable steels, alloy steels and free-cutting steels Part 4: Free-cutting steels
17/30346750 DC : 0	BS ISO 9328-2 - STEEL FLAT PRODUCTS FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - PART 2: NON-ALLOY AND ALLOY STEELS WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIES
UNE-EN ISO 16120-4:2017	Non-alloy steel wire rod for conversion to wire - Part 4: Specific requirements for wire rod for special applications (ISO 16120-4:2017)
ISO 9328-7:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 7: Stainless steels
BS EN ISO 204:2009	Metallic materials. Uniaxial creep testing in tension. Method of test
UNI EN ISO 204 : 2009	METALLIC MATERIALS - UNIAXIAL CREEP TESTING IN TENSION - METHOD OF TEST
ISO 16143-3:2014	Stainless steels for general purposes Part 3: Wire
ISO 630-1:2011	Structural steels Part 1: General technical delivery conditions for hot-rolled products
ISO 9328-3:2018	Steel flat products for pressure purposes — Technical delivery conditions — Part 3: Weldable fine grain steels, normalized
ISO 683-5:2017	Heat treatable steels, alloy steels and free-cutting steels — Part 5: Nitriding steels
DIN EN ISO 204:2009-10	METALLIC MATERIALS - UNIAXIAL CREEP TESTING IN TENSION - METHOD OF TEST
EN ISO 16120-3:2011	Non-alloy steel wire rod for conversion to wire - Part 3: Specific requirements for rimmed and rimmed substitute, low-carbon steel wire rod (ISO 16120-3:2011)
EN ISO 16120-4:2017	Non-alloy steel wire rod for conversion to wire - Part 4: Specific requirements for wire rod for special applications (ISO 16120-4:2017)
DIN EN ISO 16120-3:2011-10	Non-alloy steel wire rod for conversion to wire - Part 3: Specific requirements for rimmed and rimmed substitute, low-carbon steel wire rod (ISO 16120-3:2011)
ONORM EN ISO 683-17 : 2015	HEAT-TREATED STEELS, ALLOY STEELS AND FREE-CUTTING STEELS - PART 17: BALL AND ROLLER BEARING STEELS (ISO 683-17:2014)

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