SIST EN 4632-004:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Schweißbarkeit und Lötbarkeit von Werkstoffen im Luft- und Raumfahrzeugbau - Teil 004: Schweißen und Löten gleichartiger Verbindungen aus hochlegierten StählenSérie aérospatiale - Soudabilité et brasabilité des matériaux pour constructions aérospatiales - Partie 004: Assemblages soudés et brasés homogènes d’aciers fortement alliésAerospace series - Weldability and brazeability of materials in aerospace constructions - Part 004: Welding and brazing of homogeneous assemblies of high alloyed steels49.025.10JeklaSteels25.160.01Varjenje, trdo in mehko spajkanje na splošnoWelding, brazing and soldering in generalICS:Ta slovenski standard je istoveten z:EN 4632-004:2012SIST EN 4632-004:2014en01-marec-2014SIST EN 4632-004:2014SLOVENSKI
STANDARD



SIST EN 4632-004:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4632-004
September 2012 ICS 49.025.01 English Version
Aerospace series - Weldability and brazeability of materials in aerospace constructions - Part 004: Welding and brazing of homogeneous assemblies of high alloyed steels
Série aérospatiale - Soudabilité et brasabilité des matériaux pour constructions aérospatiales - Partie 004: Assemblagessoudés et brasés homogènes d'aciers fortement alliés
Luft- und Raumfahrt - Schweißeignung und Löteignung von Werkstoffen im Luft- und Raumfahrzeugbau - Teil 004: Schweißen und Löten gleichartiger Verbingungen aus hochlegeirten Stähler This European Standard was approved by CEN on 23 March 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4632-004:2012: ESIST EN 4632-004:2014



EN 4632-004:2012 (E) 2 Contents Page Foreword . 31Scope . 42Normative references . 43Terms and definitions . 94Abbreviations . 95Use of this standard .106Updating .107List of highly alloyed steels .108Highly alloyed steels .11Bibliography .35SIST EN 4632-004:2014



EN 4632-004:2012 (E) 3 Foreword This document (EN 4632-004:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2013, and conflicting national standards shall be withdrawn at the latest by March 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
SIST EN 4632-004:2014



EN 4632-004:2012 (E) 4 1 Scope This European Standard specifies the weldability and brazeability of materials or material families used in the aerospace industry. It comprises a series of sheets, by materials or material family, which:  indicate the main titles, the typical chemical composition and the main characteristics,  contain recommendations for welding and brazing,  indicate a degree of weldability or brazeability for a given process under defined conditions,  indicate a value for the welded joint mechanical resistance coefficient for each welding process when extracted from relevant bibliographical references. Joint coefficient is the ratio of stress resistance transversally to welded joint over tensile strength of parent alloy. It recommends ISO/TR 17671-3 and EN 1011-3 for pre-heating conditions specially for the welding of martensitic steels. These conditions depend on the line energy of welding, thickness, arc welding process and of hydrogen rate in filler metal. It applies unreservedly to the manufacturing of new parts or for repair. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1011-3, Welding — Recommendations for welding of metallic materials — Part 3: Arc welding of stainless steels EN 1045, Brazing — Fluxes for brazing — Classification and technical delivery conditions EN 2174, Aerospace series — Heat resisting alloy FE-PA2602 (X4NiCrTiMoV26-15) — Solution treated and precipitation treated — Forgings — De ≤ 100 mm — Rm ≥ 850 MPa 1) EN 2175, Aerospace series — Heat resisting alloy FE-PA2602 (X4NiCrTiMoV26-15) — Solution treated and precipitation treated — Sheet strip and plate — 0,5 mm ≤ a ≤ 10 mm — Rm ≥ 850 MPa 1) EN 2177, Aerospace series — Heat resisting alloy FE-PA2501 (X4NiCrMoTi43-13) — Solution treated and precipitation treated — Forgings — De ≤ 100 mm 1) EN 2178, Aerospace series — Heat resisting alloy FE-PA2501 (X4NiCrMoTi43-13) — Solution treated and precipitation treated — Bar and section — De ≤ 200 mm 1) EN 2278, Steel FE-PM37 — 900 MPa ≤ Rm ≤ 1 100 MPa — Bars De ≤ 150 mm — Aerospace series 2) EN 2279, Steel FE-PM37 — 900 MPa ≤ Rm ≤ 1 100 MPa — Forgings De ≤ 150 mm — Aerospace series 2) EN 2280, Steel FE-PM37 — 900 MPa ≤ Rm ≤ 1 100 MPa — Sheets a ≤ 6 mm — Aerospace series 2)
1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). 2) Published as ASD-STAN Standard at the date of publication of this standard (www.asd-stan.org). SIST EN 4632-004:2014



EN 4632-004:2012 (E) 5 EN 2465, Aerospace series — Steel FE-PA3901 (X2CrNi18-9) — Softened — 450 MPa ≤ Rm ≤ 680 MPa — Bar for machining — 4 mm ≤ De ≤ 100 mm EN 2466, Aerospace series — Steel FE-PA3901 (X2CrNi19-11) — Softened — Forgings — De ≤ 100 mm EN 2467, Aerospace series — Steel FE-PA3901 (X2CrNi18-9) — Air melted — Softened — Plate, sheet and strip — 0,4 mm ≤ a ≤ 20 mm — 520 MPa ≤ Rm ≤ 670 MPa EN 2468, Steel FE-PA11 — Softened — Tubes 0,5 mm ≤ a ≤ 5 mm — Aerospace series 2) EN 2469, Aerospace series — Steel FE-PA3901 (X1CrNi18-10) — Air melted — Softened — Wires — 0,4 mm ≤ D ≤ 12,5 mm — 450 MPa ≤ Rm ≤ 650 MPa EN 2815, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted — Solution treated and precipitation treated — Bar for machining — a or D ≤ 200 mm — Rm ≥ 965 MPa EN 2816, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 200 mm — Rm ≥ 965 MPa 1) EN 2817, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted — Solution treated and precipitation treated — Bar for machining — a or D ≤ 200 mm — Rm ≥ 1 070 MPa EN 2818, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 200 mm — Rm ≥ 1 070 MPa EN 2821, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted — Solution treated and precipitation treated — Bar for machining — a or D ≤ 200 mm — Rm ≥ 1 310 MPa EN 3160, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted, solution treated and precipitation treated — Bar — a or D ≤ 200 mm — Rm ≥ 1 310 MPa EN 3161, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted, solution treated and precipitation treated — Bar — a or D ≤ 200 mm — Rm ≥ 930 MPa EN 3162, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted, solution treated and precipitation treated — Sheet and strip, a ≤ 6 mm — Rm ≥ 930 MPa EN 3357, Aerospace series — Steel FE-PM1503 (X3CrNiMoAl13-8-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Bar for machining — a or D ≤ 150 mm — 1 200 MPa ≤ Rm ≤ 1 400 MPa 1) EN 3358, Aerospace series — Steel FE-PM1503 (X3CrNiMoAl13-8-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Bar for machining — a or D ≤ 150 mm — Rm ≥ 1 400 MPa 1) EN 3359, Aerospace series — Steel FE-PM1503 (X3CrNiMoAl13-8-2) — Vacuum induction melted and consumable electrode remelted, softened, forging stock — a or D ≤ 300 mm EN 3361, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted, solution treated and precipitation treated, sheet and strip — a ≤ 6 mm — 1 070 MPa ≤ Rm ≤ 1 220 MPa EN 3365, Aerospace series — Steel FE-PM3901 (X15CrNi17-3) — Air melted, softened, forging stock a or D ≤ 300 mm SIST EN 4632-004:2014



EN 4632-004:2012 (E) 6 EN 3468, Aerospace series — Steel FE-PA13 — Softened — 500 ≤ Rm ≤ 700 MPa — Forgings — De ≤ 100 mm 1) EN 3469, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted —Solution treated and precipitation treaded — Forgings — a or D ≤ 200 mm — Rm ≥ 1 310 MPa 1) EN 3470, Aerospace series — Steel FE-PM1503 (X3CrNiMoAl13-8-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 150 mm —1 200 MPa ≤ Rm ≤ 1 400 MPa 1) EN 3479, Aerospace series — Steel FE-PM1802 (X5CrNiCu15-5) — Consumable electrode remelted —Solution treated and precipitation treated — Plate — 6 mm < a ≤ 20 mm — 1 070 MPa ≤ Rm ≤ 1 220 MPa EN 3480, Aerospace series — Steel FE-PA3601 (X6CrNiTi18-10) — Air melted — Softened — Plate — 6 mm < a ≤ 50 mm — 500 MPa ≤ Rm ≤ 700 MPa EN 3481, Aerospace series — Steel FE-PA13 — Annealed — Reference heat treatment: softened — Hollow bars — 5 ≤ a ≤ 12 mm 1) EN 3486, Aerospace series — Steel FE-PM67 — Solution annealed and precipitation hardened — 1 400 ≤ Rm ≤ 1 550 MPa — Forgings — De ≤ 100 mm 1) EN 3487, Aerospace series — Steel FE-PA3601 (X6CrNiTi18-10) — Air melted — Softened — Bar for machining — a or D ≤ 250 mm — 500 MPa ≤ Rm ≤ 700 MPa EN 3488, Aerospace series — Steel FE-PA3601 (X6CrNiTi18-10) — Air melted — Softened — Sheet and strip — a ≤ 6 mm — 500 MPa ≤ Rm ≤ 700 MPa EN 3489, Aerospace series — Steel FE-PA13 — Softened — 500 ≤ Rm ≤ 750 MPa — Tubes for structures —0,5 ≤ a ≤ 5 mm 1) EN 3490, Aerospace series — Steel FE-PM3901 (X15CrNi17-3) Air melted — Hardened and tempered — Bar for machining — De ≤ 200 mm — 900 MPa ≤ Rm ≤ 1 100 MPa EN 3491, Aerospace series — Steel FE-PM3901 (X15CrNi17-3) — Air melted — Hardened and tempered —Forgings — De ≤ 100 mm — 900 MPa ≤ Rm ≤ 1 100 MPa
EN 3510, Aerospace series — Heat resisting alloy FE-PA2602 (X4NiCrTiMoV26-15) — Solution treated and precipitation treated — Bar and section — De ≤ 100 mm 1) EN 3529, Aerospace series — Steel FE-PM2701 (X2NiCoMo18-8-5) — Vacuum induction melted and vacuum arc remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 150 mm — 1 750 MPa ≤ Rm ≤ 2 000 MPa 1) EN 3531, Aerospace series — Steel FE-PM2701 (X2NiCoMo18-8-5) — Vacuum induction melted and vacuum arc remelted — Solution treated and precipitation treated — Sheet and strip — a ≤ 6 mm — 1 750 MPa ≤ Rm ≤ 2 000 MPa EN 3532, Aerospace series — Steel FE-PM-2701 (X2NiCoMo18-8-5) — Vacuum induction melted and vacuum arc remelted — Solution treated and precipitation treated — Plate — 6 mm < a ≤ 40 mm — 1 750 MPa ≤ Rm ≤ 2 000 MPa EN 3677, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted — Solution treated and precipitation treated — Forgings — a or D ≤ 200 mm — Rm ≥ 1 310 MPa SIST EN 4632-004:2014



EN 4632-004:2012 (E) 7 EN 3678, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted — Solution treated and precipitation treated — Forgings — a or D ≤ 200 mm — Rm ≥ 930 MPa
EN 3889, Aerospace series — Steel FE-WM3801 (X5CrNiCu17-4) — Filler metal for welding EN 3890, Aerospace series — Steel FE-WM1502 (X11CrNiMoVN12-3) — Filler metal for welding EN 4264, Aerospace series — Heat resisting alloy FE-PA2501 (X4NiCrMoTi43-13) — As forged — Forging stock — a or D ≤ 200 mm 1) EN 4314, Aerospace series — Heat resisting alloy FE-PA2602 (X4NiCrTiMoV26-15) — Non heat treated, forging stock a or D ≤ 250 mm EN 4335, Aerospace series — Steel FE-WA2602 (X4NiCrTiMoV26-15) — Filler metal for welding — Wire and rod
EN 4346, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Softened — Forging stock — a or D ≤ 300 mm
EN 4467, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Bar — a or D ≤ 150 mm — Rm ≥ 1 200 MPa
EN 4468, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Bar — a or D ≤ 150 mm — Rm ≥ 1 300 MPa EN 4469, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Bar — a or D ≤ 150 mm — Rm ≥ 1 400 MPa
EN 4470, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 150 mm — Rm ≥ 1 200 MPa EN 4471, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 150 mm — Rm ≥ 1 300 MPa EN 4472, Aerospace series — Steel FE-PM1505 (X1CrNiMoAlTi12-9-2) — Vacuum induction melted and consumable electrode remelted — Solution treated and precipitation treated — Forgings — a or D ≤ 150 mm —Rm ≥ 1 400 MPa EN 4570, Aerospace series — Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) — Solution treated — Forgings — De ≤ 100 mm 1) EN 4571, Aerospace series — Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) — Solution treated — Bar and section — De ≤ 100 mm 1) EN 4572, Aerospace series — Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) — Solution treated — Sheet and strip — a ≤ 3 mm 1) EN 4573, Aerospace series — Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) — Solution treated and precipitation treated — Bar and section — De ≤ 100 mm 1) SIST EN 4632-004:2014



EN 4632-004:2012 (E) 8 EN 4574, Aerospace series — Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) — Solution treated and precipitation treated — Forgings — De ≤ 100 mm 1) EN 4575, Aerospace series — Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20) — Solution treated and descaled — Sheet and plate — 3 mm < a ≤ 50 mm 1) EN 4627, Aerospace series — Steel FE-PM 3504 (X4CrNiMo16-5-1) — Air melted — Hardened and tempered — Forgings — De ≤ 150 mm — 1 100 MPa ≤ Rm ≤ 1 300 MPa EN 4628, Aerospace series — Steel FE-PM 3504 (X4CrNiMo16-5-1) — Air melted — Hardened and tempered — Bar — De ≤ 150 mm — 1 100 MPa ≤ Rm ≤ 1 300 MPa EN 4629, Aerospace series — Steel FE-PM 3504 (X4CrNiMo16-5-1) — Air melted — Hardened and tempered — Forging stock — De ≤ 300 mm EN 4630, Aerospace series — Steel FE-PM 3504 (X4CrNiMo16-5-1) — Air melted — Hardened and tempered — Forging — De ≤ 200 mm — 900 MPa ≤ Rm ≤ 1 050 MPa EN 4631, Aerospace series — Steel FE-PM 3504 (X4CrNiMo16-5-1) — Air melted — Hardened and tempered — Bar — De ≤ 200 mm — 900 MPa ≤ Rm ≤ 1 050 MPa EN 4632-001:2008, Aerospace series — Welded and brazed assemblies for aerospace constructions — Weldability and brazeability of materials — Part 001: General requirements EN 4642, Aerospace series — Steel FE-PM 3504 (X4CrNiMo16-5-1) — Air melted — Hardened and tempered — Sheet and plate — 0,6 mm ≤ a ≤ 50 mm — 900 MPa ≤ Rm ≤ 1 050 MPa EN 10088-1, Stainless steels — Part 1: List of stainless steels EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 10088-3, Stainless steels — Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN ISO 14343, Welding consumables — Wire electrodes, strip electrodes, wires and rods for arc welding of stainless and heat resisting steels — Classification (ISO 14343) EN ISO 4063:2010, Welding and allied processes — Nomenclature of processes and reference numbers (ISO 4063:2009, Corrected version 2010-03-01) EN ISO 18265, Metallic materials — Conversion of hardness values (ISO 18265) ISO/TR 17671-3, Welding — Recommendations for welding of metallic materials — Part 3: Arc welding of stainless steels AMS 5825, Steel, Corrosion resistant, welding wire, 16.4Cr — 4.8Ni — 0.22 Cb — 3.6Cu 3) AMS 6501, Steel, maraging, welding wire, 18Ni — 8.0Co — 4.9Mo — 0.40Ti — 0.10Al, vacuum induction melted, environment controlled packaging 3) AWS A 5.14, Specification for nickel and nickel-alloy bare welding electrodes and rods 4)
3) Published by: Society of Automotive Engineers (SAE), (www.sae.org). 4) Published by: AWS, 550 N.W. LeJeune Road, Miami, Florida 33126, USA. SIST EN 4632-004:2014



EN 4632-004:2012 (E) 9 3 Terms and definitions For the purposes of this document, the following terms, reference numbers according to EN ISO 4063 and definitions given in EN 4632-001 apply. 4 Abbreviations See Table 1. Table 1 — Commonly used US acronyms and abbreviations Reference number according to EN ISO 4063 Welding process AWS-acronym 15 Plasma arc welding PAW 21 Resistance spot welding RSW 22 Resistance seam welding RSEW 24 Flash welding FW 42 Friction welding FRW 51 Electron beam welding EBW 111 Manual metal arc welding SMAW 141 Gas tungsten arc welding using inert gas and solid filler material (wire/rod) – 131 MIG welding with solid wire electrode – 311 Oxy-acetylene welding OAW 521 Solid state laser welding SLW 522 Gas laser welding – 912 Flame brazing TB 913 Laser beam brazing ing LBBW 922 Vacuum brazing – 924 Salt-bath brazing –
PJHT : Post joining heat treatment PWHT : Post-weld heat treatment SIST EN 4632-004:2014



EN 4632-004:2012 (E) 10 5 Use of this standard The index of material sheets contained in this standard, classified by family based on the main element used in the chemical composition and on the alloy structure, is given in Clause 6. The degree of weldability or brazeability (see EN 4632-001) to be used is the value indicated by the material sheet considered for the chosen process. In the operating cycle, preferably select thermal states that give the lowest degree (for better weldability or brazeability). If two degrees are indicated, the responsible person shall select the degree that is the most appropriate for the definition of the assembly. 6 Updating See EN 4632-001. 7 List of highly alloyed steels See Table 2. Table 2 — Steel grades Subclause Material 7.1 X2NiCoMo18-8-5 7.2 X5CrNiCu15-5 X5CrNiCu17-4 7.3 X15CrNi17-3 7.4 X4CrNiMo16-5-1 7.5 X12CrNiMoV12-3 X12Cr13 7.6 X2CrNi19-11 X2CrNiMo17-12-2 X6CrNiTi18-10 X6CrNiMoTi17-12-2 X6CrNiNb18-10 7.7 X12CrNiCoMoW21-20 7.8 X4NiCrMoTi43-13 7.9 X4NiCrTiMoV26-15 7.10 X1CrNiMoAlTi12-9-2 X3CrNiMoAl13-8-2
SIST EN 4632-004:2014



EN 4632-004:2012 (E) 11 8 Highly alloyed steels 8.1 X2NiCoMo18-8-5 8.1.1 Designation EN 3529, EN 3531, EN 3532 : X2NiCoMo18-8-5 EN 10027-1 : EZ2NKD18
Current : Maraging 250 ASD-STAN : FE-PM2701
8.1.2 Chemical composition See Table 3. Table 3 — Typical chemical composition (w %) (on cast) Grade Fe C Ni Co Mo Ti Al Si Mn Zr P S B X2NiCoMo18-8-5 Base– 0,03 17,0 19,0 7,08,5 4,65,2 0,300,60 0,050,15 – 0,10 – 0,10 – 0,02 – 0,010 – 0,010– 0,003 8.1.3 Structure Martensitic with structural hardening 8.1.4 Particular characteristics High resisting steel for highly stressed parts Steel with good weldability 8.1.5 Forms Sheet and strip (EN 3531) – Forgings (EN 3529) – Plates (EN 3532). See Table 4. SIST EN 4632-004:2014



EN 4632-004:2012 (E) 12 Table 4 — Recommendations for welding and filling with X2NiCoMo18-8-5 AWS acronym
and corresponding EN ISO 4063 reference number Thickness range
mm State before welding PWHT Degree aof weldabilityJoint coefficientComments and
bibliographical references [ ] 141 ≤ 5 Solution treated Aged 480 °C during 4 h 1 1 [1] [2] Solution treated Solution treated and aged 1 1 [1] [8] Solution treated and aged Aged 480 °C during 4 h 1 – [8] Filler metal of same grade:
AMS 6501 PAW 15 pulsed ≤ 5 Solution treated Aged 480 °C during 4 h 1 1 [2] Compared with pulsed 141, this process allows to decrease proportions of retained austenite and to increase mechanical characteristics
Filler metal of same grade: AMS 6501 EBW 51 ≤ 2,5 Solution treated Aged 482 °C during 9 h 1 to 2 0,99 [9] ≤ 10 Solution treated Aged 480 °C during 4 h 1 to 2 1 [6]
Solution treated and aged Aged 480 °C during 4 h 1 to 2 –
FRW 42 ≤ 15 H2H3 b H3T2 c 1 1 [9] 522 ≤ 1 Solution treated Aged 480 °C during 4 h 1 to 2 1 – Solution treated and aged Aged 480 °C during 4 h 1 to 2 1
1 < t < 3 Solution treated Aged 480 °C during 4 h 1 to 2 0,92 [9] RSEW 22,
RSW 21 ≤ 4 Solution treated Aged 480°C during 4 h 1 – – Solution treated and aged Aged 480 °C during 4 h 1 –
FW 24 All Solution treated Solution treated and aged 1 – – T = 480 °C for 4 h. a If two degrees are indicated, the responsible person shall select the degree that is most appropriate for the definition of the assembly. b H2: 950 °C for 1 h – air cooled. c H3: 790 °C during 1 h – air cooled, T2: 455 °C for 9 h – air cooled.
SIST EN 4632-004:2014



EN 4632-004:2012 (E) 13 8.2 X5CrNiCu15-5, X5CrNiCu17-4 8.2.1 Designation EN 2815, EN 2816, EN 2817, EN 2818,
EN 2821, EN 3361, EN 3469, EN 3479 : X5CrNiCu15-5 EN 10027-1 : Z5CNU15.05 ASD-STAN : FE-PM1802 EN 3160, EN 3161, EN 3162, EN 3677, EN 3678 : X5CrNiCu17-4 EN 10027-1 : Z5CNU17.04 ASD-STAN : FE-PM3801 8.2.2 Chemical composition See Table 5. Table 5 — Typical chemical composition (w %) Grade Fe C Cr Ni Cu Si Mn Mo Nb + Ta P S X5CrNiCu15-5 Base – 0,07 14,015,5 3,5 5,5 2,5 4,5 – 1,00 – 1,00 – 0,50 5 × C 0,45 – 0,030 – 0,015 X5CrNiCu17-4 Base – 0,07 15,017,5 3,0 5,0 3,0 5,0 – 1,00 – 1,00 – 5 × C 0,45 – 0,040 – 0,030
8.2.3 Structure Martensitic with precipitation heat treatment 8.2.4 Particular characteristics High strength steel for moderately stressed parts, use of X5CrNiCu15-5 is preferred. 8.2.5 Forms X5CrNiCu15-5: Bar for machining (EN 2815, EN 2817, EN 2821) – Sheet and strip (EN 3361) – Plate (EN 3479) – Forgings (EN 2816, EN 2818, EN 3469). X5CrNiCu17-4: Bar (EN 3160, EN 3161) – Sheet and strip (EN 3162) – Forgings (EN 3677, EN 3678). See Table 6. SIST EN 4632-004:2014



EN 4632-004:2012 (E) 14 Table 6 — Recommendations for welding and filling with X5CrNiCu15-5 and X5CrNiCu17-4 AWS acronym
and corresponding EN ISO 4063
reference number Thickness range
mm State before welding PWHT Degree aof weldabilityJoint coefficientComments and
bibliographical references [ ] 141 ≤ 4 Solution treated Precipitation heat treated2 1 [3] [7] [4] Filler metal: same range according to EN 3889 for X5CrNiCu17-4,
according to AMS 5825 for X5CrNiCu15-5 For fatigue stressed parts except a machining of face and root reinforcements is recommended ≤ 2 Solution treated and precipitation heat treated Precipitation heat treated2 1 ≤ 2 Solution treated and precipitation heat treated none b
2 0,8 to 1 EBW 51 ≤ 15 Solution treated T c
2 to 3 1 Improved weldability when welding is performed at welding rates and powers lower than those leading to degree 3 of weldability
or none d
2 to 3 –
Solution treated and precipitation heat treated Stress relieved 2 to 3 1 For fatigue stressed parts except a machining of face and root reinforcements is recommended.≤ 60 Solution treated T e
2 to 3 1 [10] 522
≤ 4 Solution treated and precipitation heat treated Precipitation heat treated 2 to 3 1 For fatigue stressed parts except a machining of face and root reinforcements is recommended. Welding with Nitrogen instead of neutral gas is possible for partially penetrating welding geometries to reduce gas cavities [11]
or none d 2 to 3 1 f
≤ 13 Solution treated T c
2 to 3 1 [5]
or none b
2 to 3 1 ef
SIST EN 4632-004:2014



EN 4632-004:2012 (E) 15 Table 6 — Recommendations for welding and filling with X5CrNiCu15-5 and X5CrNiCu17-4 (continued) AWS acronym
and corresponding EN ISO 4063
reference number Thickness range
mm State before welding PWHT Degree aof weldabilityJoint coefficientComments and
bibliographical references [ ] SLW 521 ≤ 5 Solution treated Tc 2 – Welding with Nitrogen instead of neutral gas is possible for partially penetrating welding geometries to reduce gas cavities For fatigue stressed parts except a machining of face and root reinforcements is recommended.[11] RSEW 22, RSW 21 ≤ 4 Solution treated and precipitation heat treatedPrecipitation heat treated1 to 2 – –
or none b 1 to 2 – – FW 24 All Solution treated Solution treated and precipitation heat treated1 – – a If two degrees are indicated, the responsible person shall select the degree that is most appropriate for the definition of the assembly. b As-welded condition is not recommended for fatigue stressed parts. c T = 550 °C for 4 h [5]. d As-welded condition is not recommended for fatigue stressed parts except if machining of face and root reinforcements is applied. e T = 545 °C for 4 h [10]. f For pre-welding tempering temperature of 620 °C, joint coefficient is equal to 1, for pre-welding tempering temperature of 480 °C, joint coefficient is less than 1 (average 0,8).
SIST EN 4632-004:2014



EN 4632-004:2012 (E) 16 8.3 X15CrNi17-3 8.3.1 Designation EN 3365, EN 3490, EN 3491 : X15CrNi17-3 EN 10027-1 : Z15CN17.03 ASD-STAN : FE-PM 3901 8.3.2 Chemical composition See Table 7. Table 7 — Typical chemical composition (w %) Grade Fe C Cr Ni Si Mn P S X15CrNi17-3 Base 0,12 0,20 15,0 17,0 2,0 3,0 – 1,00 – 1,00 – 0,030 – 0,025
8.3.3 Structure Martensitic. 8.3.4 Particular characteristics Welding by low energy but with not too fast cooling (difficult to reconcile) to avoid enlargement of grains and formation of marten site to the grain joints. 8.3.5 Forms Bar for machining (EN 3490) – Forging stock (EN 3365) – Forgings (EN 3491). See Table 8. SIST EN 4632-004:2014



EN 4632-004:2012 (E) 17 Table 8 — Recommendations for welding and filling with X15CrNi17-3 AWS acronym
and corresponding EN ISO 4063 reference number Thickness range
mm State before welding PWHT Degree aof weldabilityJoint coefficient Comments
SMAW 111 – Hardened and tempered Annealed or Hardened and tempered 3 – – 141 ≤ 3 Hardened and tempered Annealed 2 to 3 – Filler metal of same grade. Improved weldability for
very thin thicknesses. Annealed Hardened and tempered – –
EBW 51 ≤ 10 Hardened and tempered Annealed or
Hardened and tempered 2 to 3 – – RSW 21 ≤ 3 Hardened and tempered Annealed 1 to 2 – – RSEW 22 ≤ 3 Hardened and tempered Annealed 1 to 2 – – FW 24 All Annealed Annealedor Hardened and tempered 1 – – a If two degrees are indicated, the responsible person shall select the degree that is most appropriate for the definition of the assembly. SIST EN 4632-004:2014

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