EN 10263-4:2017
(Main)Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering
General Information
- Abstract
1.1 This Part of EN 10263 is applicable to round rod and round bars and wire with a diameter up to and including 100 mm, of non-alloy and alloy steel, intended for cold heading, cold extrusion, subsequent quenching and tempering and induction hardening or flame hardening.
1.2 prEN 10263-1:2013 is indispensable for this Part of EN 10263.
- Status
- Published
- Publication Date
- 21-Nov-2017
- Withdrawal Date
- 30-May-2018
- Technical Committee
- ECISS/TC 106 - Wire rod and wires
- Drafting Committee
- ECISS/TC 106 - Wire rod and wires
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 15-Sep-2023
- Completion Date
- 17-Sep-2026
Overview
EN 10263-4:2017 - Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering (CEN) specifies delivery and product requirements for round rod, round bars and wire up to 100 mm diameter. It covers non‑alloy and alloy steels intended for cold heading and cold extrusion followed by quenching and tempering, or by induction or flame hardening. EN 10263-1:2017 (general delivery conditions) is indispensable when applying this Part.
Key topics and technical requirements
- Scope and product form: round rod, bars and wire ≤ 100 mm for cold forming and subsequent heat treatment.
- Classification: steels in this Part are classed as special steels per EN 10020; specific grades (e.g., C35EC … 42CrMo4, boron grades) are listed with steel numbers.
- Production: all steels covered shall be deoxidised; steelmaking and finishing processes refer to EN 10263-1.
- Chemical composition: cast analysis limits are specified in tabulated form for non‑boron and boron-alloy grades; product analysis permissible deviations are defined (see Tables 3–5).
- Mechanical properties: tensile properties are required and to be verified by tensile testing; applicable property tables are referenced (Tables 6–8).
- Hardenability: Jominy (end‑quench) test requirements are defined for products ordered with symbols +H, +HH, +HL; austenitizing temperatures and scatter band options are provided in the standard.
- Core hardening: steels ordered with +CH have specified core hardening temperatures, hardness values and maximum diameters (Table 12).
- Surface & delivery conditions: delivery condition symbols (+U, +AC, +AR, +C, +LC, +PE) and surface requirements are covered; supplementary/special requirements are handled per EN 10263-1 (Annex A).
Applications and who uses it
EN 10263-4:2017 is used by:
- Steel manufacturers and foundries to produce and certify rod, bar and wire for cold forming and hardening.
- Fastener and cold‑headed component producers who require predictable quench/tempered properties after cold forming.
- Heat‑treaters performing quenching, tempering, induction or flame hardening to specified hardenability and core hardness.
- Procurement, quality assurance and standards/specification writers who need consistent technical delivery conditions and traceable chemical/mechanical data.
Practical benefits include consistent material performance for cold heading/cold extrusion operations, controlled hardenability for post‑forming heat treatment, and harmonized delivery specifications across the supply chain.
Related standards
- EN 10263-1:2017 - General technical delivery conditions (indispensable companion document)
- EN 10020 - Definition and classification of steel grades
Keywords: EN 10263-4:2017, steel rod bars wire, cold heading, cold extrusion, quenching and tempering, hardenability, Jominy test, technical delivery conditions.
Relations
- Effective Date
- 08-Jun-2022
- Effective Date
- 06-Dec-2017
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN 10108:2004 - Round steel rod for cold heading and cold extrusion - Dimensions and tolerances - Effective Date
- 28-Jan-2026
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Frequently Asked Questions
EN 10263-4:2017 is a standard published by the European Committee for Standardization (CEN). Its full title is "Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering". This standard covers: 1.1 This Part of EN 10263 is applicable to round rod and round bars and wire with a diameter up to and including 100 mm, of non-alloy and alloy steel, intended for cold heading, cold extrusion, subsequent quenching and tempering and induction hardening or flame hardening. 1.2 prEN 10263-1:2013 is indispensable for this Part of EN 10263.
1.1 This Part of EN 10263 is applicable to round rod and round bars and wire with a diameter up to and including 100 mm, of non-alloy and alloy steel, intended for cold heading, cold extrusion, subsequent quenching and tempering and induction hardening or flame hardening. 1.2 prEN 10263-1:2013 is indispensable for this Part of EN 10263.
EN 10263-4:2017 is classified under the following ICS (International Classification for Standards) categories: 77.140.60 - Steel bars and rods; 77.140.65 - Steel wire, wire ropes and link chains. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 10263-4:2017 has the following relationships with other standards: It is inter standard links to EN 10263-4:2001, EN 10263-4:2001/AC:2002, EN 10020:2000, EN 14592:2008+A1:2012, EN 10263-1:2017, EN 10108:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 10263-4:2017 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Walzdraht, Stäbe und Draht aus Kaltstauch- und Kaltfließpressstählen - Teil 4: Technische Lieferbedingungen für VergütungsstähleBarres, fil machine et fils en acier pour transformation à froid et extrusion à froid - Partie 4: Conditions techniques de livraison des aciers pour trempe et revenuSteel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering77.140.65Jeklene žice, jeklene vrvi in verigeSteel wire, wire ropes and link chains77.140.60Jeklene palice in drogoviSteel bars and rodsICS:Ta slovenski standard je istoveten z:EN 10263-4:2017SIST EN 10263-4:2018en,fr,de01-februar-2018SIST EN 10263-4:2018SLOVENSKI
STANDARDSIST EN 10263-4:2002/AC:2003SIST EN 10263-4:20021DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 10263-4
November
t r s y ICS
y yä s v rä x râ
y yä s v rä x w Supersedes EN
s r t x uæ vã t r r sEnglish Version
Steel rodá bars and wire for cold heading and cold extrusion æ Part
vã Technical delivery conditions for steels for quenching and tempering Barresá fil machine et fils en acier pour transformation à froid et extrusion à froid æ Partie
vã Conditions techniques de livraison des aciers pour trempe et revenu
Walzdrahtá Stäbe und Draht aus Kaltstauchæ und Kaltfließpressstählen æ Teil
vã Technische Lieferbedingungen für Vergütungsstähle This European Standard was approved by CEN on
t x July
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r t x uæ vã t r s y ESIST EN 10263-4:2018
with reference to the steel names indicated in bar rod wire Tables 3 and 4, 6 or 7 or 8 Tables 3 and 4, 6 or 7 or 8, 9 or 10 or 11 Tables 3 and 4, 6 or 7 or 8, 12 Tables 3,4,6,7,8,9, 10,11 or 12 untreated None or +U X X – Chemical composition as specified in Tables 3 and 4 Mechanical properties as specified in Table 6 or 7 or 8 Chemical composition as specified in Tables 3 and 4 Mechanical properties as specified in Table 6 or 7 or 8 Values for hardenability according to Tables 9 or 10 or 11 Chemical composition as specified in Tables 3 and 4 Mechanical properties as specified in Table 6 or 7 or 8 Minimum core hardness and maximum diameter according to Table 12 Supplementary or special requirements as specified in Annex A of EN 10263-1 a spheroidised +AC X X X Others Other delivery conditions may be agreed at the time of ordering Key X = applicable
= not applicable a If agreed at the time of the enquiry and order. SIST EN 10263-4:2018
0,25 0,25 0,25 0,25 37Mo2 1.5418 0,35 to 0,40 0,30 0,60 to 0,90 0,025 0,025 max
0,20 to 0,30
0,25 38Cr2 46Cr2 34Cr4 37Cr4 41Cr4 41CrS4 1.7003 1.7006 1.7033 1.7034 1.7035 1.7039 0,35 to 0,42 0,42 to 0,50 0,30 to 0,37 0,34 to 0,41 0,38 to 0,45 0,38 to 0,45 0,30 0,30 0,30 0,30 0,30 0,30 0,50 to 0,80 0,50 to 0,80 0,60 to 0,90 0,60 to 0,90 0,60 to 0,90 0,60 to 0,90 0,025 0,025 0,025 0,025 0,025 0,025 0,025 max 0,025 max 0,025 max 0,025 max 0,025 max 0.020 to 0,040 0,40 to 0,60 0,40 to 0,60 0,90 to 1,20 0,90 to 1,20 0,90 to 1,20 0,90 to 1,20
0,25 0,25 0,25 0,25 0,25 0,25 25CrMo4 25CrMoS4 34CrMo4 37CrMo4 42CrMo4 42CrMoS4 1.7218 1.7213 1.7220 1.7202 1.7225 1.7227 0,22 to 0,29 0,22 to 0,29 0,30 to 0,37 0,35 to 0,40 0,38 to 0,45 0,38 to 0,45 0,30 0,30 0,30 0,30 0,30 0,30 0,60 to 0,90 0,60 to 0,90 0,60 to 0,90 0,60 to 0,90 0,60 to 0,90 0,60 to 0,90 0,025 0,025 0,025 0,025 0,025 0,025 0,025 max 0.020 to 0,040 0,025 max 0,025 max 0,025 max 0.020 to 0,040 0,90 to 1,20 0,90 to 1,20 0,90 to 1,20 0,90 to 1,20 0,90 to 1,20 0,90 to 1,20 0,15 to 0,30 0,15 to 0,30 0,15 to 0,30 0,15 to 0,30 0,15 to 0,30 0,15 to 0,30
0,25 0,25 0,25 0,25 0,25 0,25 34CrNiMo6 41NiCrMo7–3–2 1.6582 1.6563 0,30 to 0,38 0.38 to 0,44 0,30 0,30 0,50 to 0,80 0,60 to 0,90 0,025 0,025 0,025 max 0,025 max 1,30 to 1,70 0,70 to 0,90 0,15 to 0,30 0,15 to 0,30 1,30 to 1,70 1,65 to 2,00 0,25 0,25 a Lower silicon contents may be agreed at the time of ordering, in which case due consideration should be given to the effects that could result for what concerns the specified properties such as, for example, hardenability. b A carbon range of 0,04 % (e.g. 0,33 % - 0,37 %) may be agreed at the time of enquiry and order. NOTE 1 Elements not quoted in this table should not be intentionally added to the steel without the agreement of the purchaser, except those intended for finishing the heat. All reasonable precautions shall be taken in order to prevent the addition of such elements from scrap or other materials used in the production process, which may affect the hardenability, mechanical properties and applicability. NOTE 2 In the case of steels with hardenability requirements (see Tables 9 to 11) minor deviation from the specified limits are permitted (with the exception of sulphur and phosphorus), provided that they do not exceed 0,01 % for carbon and the values indicated in Table 5 for the other elements. NOTE 3 To improve the performance of cold heading, it is possible to add Aluminium Al: 0,020 to 0,050 %. SIST EN 10263-4:2018
0,30 0,60 to 0,90 0,025 0,025
0,30
0,25 0,0008 to 0,005 23B2 1.5508 0,20 to 0,25
0,30 0,60 to 0,90 0,025 0,025
0,30
0,25 0,0008 to 0,005 28B2 1.5510 0,25 to 0,30
0,30 0,60 to 0,90 0,025 0,025
0,30
0,25 0,0008 to 0,005 33B2 1.5514 0,30 to 0,35
0,30 0,60 to 0,90 0,025 0,025
0,30
0,25 0,0008 to 0,005 38B2 1.5515 0,35 to 0,40
0,30 0,60 to 0,90 0,025 0,025
0,30
0,25 0,0008 to 0,005 17MnB4 1.5520 0,15 to 0,20
0,30 0,90 to 1,20 0,025 0,025
0,30
0,25 0,0008 to 0,005 23MnB3 1.5507 0,21 to 0,25 0,15 max. 0,80 to 1,00 0,015 0,015 0,25 to 0,35
0,25 0,0008 to 0,005 20MnB4 1.5525 0,18 to 0,23
0,30 0
...