EN 13835:2012
(Main)Founding - Austenitic cast irons
Founding - Austenitic cast irons
This European Standard specifies the grades and corresponding requirements for austenitic cast irons. These requirements are specified in terms of:
graphite form and metal structure: either flake or spheroidal graphite in an austenitic matrix;
chemical composition: as given for each of the grades;
mechanical properties measured on machined test pieces prepared from cast samples.
This standard does not cover technical delivery conditions for iron castings, see EN 1559-1 [1] and
EN 1559-3 [2].
Gießereiwesen - Austenitische Gusseisen
Diese Europäische Norm legt die Sorten und die entsprechenden Anforderungen für austenitische Gusseisen fest. Diese Anforderungen sind festgelegt in Bezug auf:
- Graphitform und Grundgefüge: Lamellen oder Kugelgraphit in einem austenitischen Grundgefüge;
- chemische Zusammensetzung: entsprechend den Angaben für die jeweilige Sorte;
- mechanische Eigenschaften: gemessen an mechanisch bearbeiteten Proben, die aus gegossenen Probestücken gewonnen wurden.
Diese Norm behandelt nicht die technischen Lieferbedingungen für Gusseisen, siehe EN 1559 1 [1] und EN 1559 3 [2].
Fonderie - Fontes austénitiques
La présente Norme européenne spécifie les nuances et les exigences correspondantes relatives aux fontes austénitiques. Ces exigences sont spécifiées en termes de :
- forme de graphite et structure du métal : graphite lamellaire ou sphéroïdal dans une matrice austénitique ;
- composition chimique : telle qu'indiquée pour chacune des nuances ;
- propriétés mécaniques mesurées sur des éprouvettes usinées provenant d’échantillons coulés.
La présente norme ne couvre pas les conditions techniques de fourniture des fontes, voir l’EN 1559-1 [1] et l’EN 1559-3 [2].
Livarstvo - Avstenitna siva litina
Ta evropski standard določa razrede in ustrezne zahteve za avstenitno sivo litino. Te zahteve so določene za: oblike grafita in strukture kovine; lamelni ali kroglasti grafit v avstentitni matriki; kemijsko sestavo: podano za vsak razred; mehanske lastnosti, izmerjene na strojno obdelanih preskusnih kosih iz litih vzorcev. Ta standard ne zajema tehničnih dobavnih pogojev za ulitke iz sive litine (glejte standard EN 1559-3).
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Livarstvo - Avstenitna siva litinaGießereiwesen - Austenitische GusseisenFonderie - Fonte austénitiqueFounding - Austenitic cast irons77.080.10ŽelezoIronsICS:Ta slovenski standard je istoveten z:EN 13835:2012SIST EN 13835:2012en,fr,de01-marec-2012SIST EN 13835:2012SLOVENSKI
STANDARDSIST EN 13835:2003/A1:2006SIST EN 13835:20031DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13835
January 2012 ICS 77.080.10 Supersedes EN 13835:2002English Version
Founding - Austenitic cast irons
Fonderie - Fontes austénitiques
Gießereiwesen - Austenitische Gusseisen This European Standard was approved by CEN on 26 November 2011.
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, 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 13835:2012: ESIST EN 13835:2012
Properties and applications of the austenitic cast iron grades . 22Annex B (informative)
Comparison of austenitic cast iron material designations according to EN 1560 and ISO/TR 15931 [3], [6] . 23Annex C (informative)
Heat treatment . 24Annex D (informative)
Effect of alloying elements . 25Annex E (informative)
Additional information on mechanical and physical properties . 26Annex F (normative)
Sectioning procedure for cast samples . 31Annex G (informative)
Sample preparation for the determination of physical properties . 32Annex H (informative)
Significant technical changes between this European Standard and the previous edition . 33Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC . 34Bibliography . 35 SIST EN 13835:2012
EN 1559-3 [2]. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 764-5:2002, Pressure equipment — Part 5: Compliance and inspection — Documentation of materials EN 10204:2004, Metallic products — Types of inspection documents EN ISO 148-1:2010, Metallic materials — Charpy impact test — Part 1: Test method (ISO 148-1:2009) EN ISO 945-1, Microstructure of cast irons —Part 1: Graphite classification by visual analysis
(ISO 945-1) EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1) EN ISO 6892-1:2009, Metallic materials — Tensile testing — Part 1: Method of test at room temperature (ISO 6892-1:2009) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 austenitic cast iron cast material with an austenitic matrix which is iron, carbon and silicon based and alloyed with nickel, manganese, copper and/or chromium in order to stabilize the austenitic structure at room temperature; the graphite can be present in flake or spheroidal form 3.2 cast sample quantity of material cast to represent the cast material, including separately cast sample, side by side cast sample and cast-on sample 3.3 separately cast sample sample cast in a separate sand mould under representative manufacturing conditions and material grade SIST EN 13835:2012
The manufacturer shall ensure that the requirements defined in this European Standard are met for the material grade specified in the order. All agreements between the manufacturer and the purchaser shall be made by the time of acceptance of the order. NOTE For certain applications heat treatment of austenitic cast irons is beneficial, but should only be specified where service conditions demand such treatment. The heat treatment processes employed are stress relieving and high temperature stabilising treatments. Details of these treatments are given in Annex C. SIST EN 13835:2012
25 mm shall be agreed between the manufacturer and the purchaser and specified in the order. 7.2.3 Test pieces machined from samples cut from a casting If applicable, the manufacturer and the purchaser shall agree on: location(s) on a casting where the sample(s) shall be taken; mechanical properties that shall be measured; minimum values, or allowable range of values, for these mechanical properties. NOTE 1 The properties and the structure of castings are not uniform, depending on the complexity of the castings and variation in their section thickness. SIST EN 13835:2012
Table 2 — Chemical composition of austenitic cast irons — Special purpose grades Graphite form Material designation Chemical composition in % (mass fraction) Symbol Number C Si Mn Ni Cr P Cu Flake EN-GJLA-XNiMn13-7 5.1501 max. 3,0 1,5 to 3,0 6,0 to 7,0 12,0 to 14,0 max. 0,2 max. 0,25 max. 0,5 Spheroidal EN-GJSA-XNiMn13-7 5.3506 max. 3,0 2,0 to 3,0 6,0 to 7,0 12,0 to 14,0 max. 0,2 max. 0,08 max. 0,5 EN-GJSA-XNiCr30-3 5.3507 max. 2,6 1,5 to 3,0 0,5 to 1,5 28,0 to 32,0 2,5 to 3,5 max. 0,08 max. 0,5 EN-GJSA-XNiSiCr30-5-5 5.3508 max. 2,6 5,0 to 6,0 0,5 to 1,5 28,0 to 32,0 4,5 to 5,5 max. 0,08 max. 0,5 EN-GJSA-XNiCr35-3 5.3509 max. 2,4 1,5 to 3,0 0,5 to 1,5 34,0 to 36,0 2,0 to 3,0 max. 0,08 max. 0,5
strengthstrength
V-notch CharpySymbol Number Rp0,2 Rm A
MPa MPa % J min. min. min. min. Spheroidal EN-GJSA-XNiCr20-2 5.3500 210 370
7 13 a EN-GJSA-XNiMn23-4 5.3501 210 440 25 24
EN-GJSA-XNiCrNb20-2 5.3502 210 370
7 13 a EN-GJSA-XNi22 5.3503 170 370 20 20
EN-GJSA-XNi35 5.3504 210 370 20 13 a EN-GJSA-XNiSiCr35-5-2 5.3505 200 370 10 7 a
EN-GJSA-XNiMn13-7 5.3506 210 390 15 16 a Optional requirement by agreement between the manufaturer and the purchaser. SIST EN 13835:2012
strength strengthSymbol Number Rp0,2 Rm A
MPa MPa % min. min. min. Flake EN-GJLA-XNiMn13-7 5.1501 — 140 — EN-GJLA-XNiCuCr15-6-2 5.1500 — 170 — Spheroidal
EN-GJSA-XNiCr30-3 5.3507 210 370
7 EN-GJSA-XNiSiCr30-5-5 5.3508 240 390 — EN-GJSA-XNiCr35-3 5.3509 210 370
7 SIST EN 13835:2012
The samples shall be subject to the same heat treatment, as that of the castings they represent, if any. The samples for chemical analysis shall be cast in a manner which ensures that the accurate chemical composition can be determined. 8.2 Cast samples 8.2.1 Size of cast samples The size of the sample shall be in correspondence with the relevant wall thickness of the casting as shown in Table 5. If other sizes are used, this shall be agreed between the manufacturer and purchaser. SIST EN 13835:2012
Relevant wall thickness t mm Type of sample Preferred diameter of tensile test piece a d mm Option 1
U-shaped Option 2
Y-shaped Option 3 Round bar Cast-on sample (See Figure 1) (See Figure 2) (See Figure 3) (See Figure 4) t ≤ 12,5 — I Types b, c A 7 (Option 3: 14 mm)
12,5 < t ≤ 30 — II Types a, b, c B 14 30 < t ≤ 60
x b III — C 14 60 < t ≤ 200 — IV — D 14 a Other diameters, in accordance with Figure 5, may be agreed between the manufacturer and the purchaser. b The cooling rate of this cast sample corresponds to that of a 40 mm thick wall.
8.2.2 Frequency and number of tests Samples, representative of the material, shall be produced at a frequency in accordance with the process quality assurance procedure adopted by the manufacturer or as agreed with the purchaser. In the absence of either a process quality assurance procedure or any agreement between the manufacturer and the purchaser, a minimum of one cast sample for the tensile test shall be produced to confirm the material at a frequency to be agreed between the manufacturer and the purchaser by the time of acceptance of the order. When impact tests are agreed by the time of acceptance of the order, samples shall be produced at a frequency to be agreed between the manufacturer and the purchaser. 8.2.3 Separately cast samples The samples shall be cast separately in sand moulds under representative manufacturing conditions. The moulds used to cast the separately cast samples shall have comparable thermal behaviour to the moulding material used to cast the castings. The samples shall meet the requirements of either Figures 1, 2 or 3. The samples shall be removed from the mould at a temperature similar to that of the castings. 8.2.4 Side-by-side cast samples Side-by-side cast samples are representative of the castings concurrently cast and also of all other castings of a similar relevant wall thickness from the same test unit. When mechanical properties are required for a series of castings belonging to the same test unit, the side-by-side cast sample(s) shall be produced in the last mould(s) poured. The samples shall meet the requirements of either Figures 1, 2 or 3. 8.2.5 Cast-on samples Cast-on samples are representative of the castings
to which they are attached and also of all other castings of a similar relevant wall thickness from the same test unit. SIST EN 13835:2012
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