EN 1561:2011

Founding - Grey cast irons

This European Standard specifies the properties of unalloyed and low-alloyed grey cast irons used for castings, which have been manufactured in sand moulds or in moulds with comparable thermal behaviour.
This European Standard specifies the characterizing properties of grey cast irons by either
a)   the tensile strength of cast samples, or
b)   the hardness measured on the castings or on a cast-on knob.
If agreed by the manufacturer and the purchaser, the combination of both tensile strength from option a) and hardness from option b) may be specified.
This European Standard specifies six grades of grey cast iron by a classification based on tensile strength measured on machined test pieces prepared from cast samples (see Table 1) and six grades of grey cast iron by a classification based on Brinell hardness (see Table 2).
This European Standard does not cover technical delivery conditions for iron castings; see EN 1559-1 [3] and
EN 1559-3 [4].
This European Standard does not apply to grey cast irons used for pipes and fittings according to EN 877 [5].

Gießereiwesen - Gusseisen mit Lamellengraphit

Diese Europäische Norm legt die Eigenschaften von unlegiertem und niedrig legiertem Gusseisen mit Lamellengraphit für Gussstücke fest, die in Sandformen oder Formen mit vergleichbarem thermischen Verhalten hergestellt wurden. Diese Europäische Norm legt die kennzeichnenden Eigenschaften von Gusseisen mit Lamellengraphit fest, hinsichtlich entweder a) der Zugfestigkeit von gegossenen Probestücken; oder b) der Härte, gemessen am Gussstück oder an einem angegossenen Probestück. Wenn zwischen dem Hersteller und dem Käufer vereinbart, kann eine Kombination aus Zugfestigkeit nach Möglichkeit a) und Härte nach Möglichkeit b) festgelegt werden. Diese Europäische Norm legt sechs Sorten des Gusseisens mit Lamellengraphit fest, deren Klassifizierung auf der Zugfestigkeit beruht, die an bearbeiteten Proben aus gegossenen Probestücken gemessen wird (siehe Tabelle 1), und sechs Sorten des Gusseisens mit Lamellengraphit, deren Klassifizierung auf der Bri-nellhärte beruht (siehe Tabelle 2). Diese Europäische Norm behandelt nicht die technischen Lieferbedingungen für Gusseisen mit Lamellengraphit; siehe dafür EN 1559-1 [3] und EN 1559-3 [4]. Diese Europäische Norm gilt nicht für Gusseisen mit Lamellengraphit, das für Rohre und Formstücke nach EN 877 [5] verwendet wird.

Fonderie - Fontes à graphite lamellaire

La présente Norme européenne spécifie les propriétés des fontes à graphite lamellaire non alliées et
faiblement alliées, utilisées pour les pièces moulées qui ont été coulées dans des moules en sable ou des
moules ayant un comportement thermique comparable.
La présente Norme européenne spécifie les propriétés permettant de caractériser les fontes à graphite
lamellaire soit :
a) par la résistance à la traction des échantillons coulés ; ou
b) par la dureté mesurée sur des pièces ou sur un appendice attenant à la pièce.
Par accord entre le fabricant et l'acheteur, on peut spécifier la combinaison de résistance à la traction, à partir
de l'option a) et de dureté, à partir de l'option b).
La présente Norme européenne spécifie six nuances de fonte à graphite lamellaire grâce à une classification
basée sur la résistance à la traction mesurée sur des éprouvettes usinées, élaborées à partir d'échantillons
coulés (voir Tableau 1) et six nuances de fonte à graphite lamellaire, grâce à une classification basée sur la
dureté Brinell (voir Tableau 2).
La présente Norme européenne ne couvre pas les conditions techniques de fourniture des pièces moulées en
fonte; voir l'EN 1559-1 [3] et l'EN 1559-3 [4].
La présente Norme européenne ne s'applique pas aux fontes à graphite lamellaire utilisée pour les tuyaux et
les raccords conformément à l'EN 877 [5].

Livarstvo - Siva litina (z lamelastim grafitom)

Ta evropski standard določa lastnosti nelegirane in malolegirane sive litine (z lamelastim grafitom), ki se uporablja za ulitke, izdelane v peščenih kalupih ali v kalupih s primerljivimi toplotnimi lastnostmi. Dokument ne velja za sive litine (z lamelastim grafitom), ki se uporabljajo za cevi in fitinge v skladu z EN 877.

General Information

• Status: Withdrawn
• Publication Date: 18-Oct-2011
• Withdrawal Date: 12-Dec-2023
• ICS: 77.080.10 - Irons
• ICS: 77.140.80 - Iron and steel castings
• Technical Committee: CEN/TC 190 - Foundry technology
• Drafting Committee: CEN/TC 190/WG 5 - Grey cast iron and compacted graphite cast iron
• Ref Project: SIST EN 1561:2011 - Founding - Grey cast irons

Relations

• Replaces: EN 1561:1997 - Founding - Grey cast irons
• Effective Date: 08-Jun-2022
• Replaced By: EN 1561:2023 - Founding - Grey cast irons
• Effective Date: 18-Jan-2023

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Livarstvo - Siva litina (z lamelastim grafitom)Gießereiwesen - Gusseisen mit LamellengraphitFonderie - Fontes à graphite lamellaireFounding - Grey cast irons77.140.80Železni in jekleni ulitkiIron and steel castingsICS:Ta slovenski standard je istoveten z:EN 1561:2011SIST EN 1561:2011en,fr,de01-december-2011SIST EN 1561:2011SLOVENSKI
STANDARDSIST EN 1561:1998SIST EN 1561:1997/prA1:20071DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1561
October 2011 ICS 77.080.10 Supersedes EN 1561:1997English Version
Founding - Grey cast irons
Fonderie - Fontes à graphite lamellaire
Gießereiwesen - Gusseisen mit Lamellengraphit This European Standard was approved by CEN on 17 September 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 and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1561:2011: ESIST EN 1561:2011

Additional information on mechanical and physical properties . 19Annex B (informative)
Comparison of grey cast iron material designations according to EN 1560 and ISO/TR 15931 [13] . 21Annex C (informative)
Additional information on the relationship between hardness and tensile strength . 22Annex D (informative)
Guidance values for tensile strength for test pieces machined from samples cut from a casting . 24Annex E (informative)
Additional information on the relationship between tensile strength, hardness and wall thickness of grey iron castings . 25Annex F (informative)
Wedge penetration test . 28Annex G (informative)
Significant technical changes between this European standard and the previous edition . 31Bibliography . 32 SIST EN 1561:2011

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 and the United Kingdom.
Compared with the previous edition of this standard, for relevant wall thicknesses from 50 mm to 200 mm, the relationship with the 30 mm separately cast sample has been abandoned and instead of that, cast-on samples with a size corresponding to the relevant wall thickness ranges are specified. Additionally the minimum tensile properties to be obtained in these cast-on samples, are increased. In this standard a new designation system by number, as established in EN 1560 [1], is given.
NOTE
This designation system by number is based on the structure and rules of EN 10027-2 [2] and so corresponds with the European numbering system for steel and other materials. The mechanical properties of the material can be evaluated on machined test pieces prepared from:  separately cast samples;
 side by side cast samples;  cast-on samples;  samples cut from a casting. Hardness of the material can also be evaluated on the casting. However, for many applications tensile strength or hardness are not the only interesting or determining properties. Other mechanical or physical properties can be decisive for the use of grey cast irons, for example: thermal capacity, thermal diffusivity, damping capacity or thermo-cycle fatigue. Therefore, Annex A (informative) provides additional information of interest to casting designers. SIST EN 1561:2011

This European Standard specifies six grades of grey cast iron by a classification based on tensile strength measured on machined test pieces prepared from cast samples (see Table 1) and six grades of grey cast iron by a classification based on Brinell hardness (see Table 2). This European Standard does not cover technical delivery conditions for iron castings; see EN 1559-1 [3] and
EN 1559-3 [4]. This European Standard does not apply to grey cast irons used for pipes and fittings according to EN 877 [5]. 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 10204, Metallic products — Types of inspection documents EN ISO 945-1, Microstructure of cast irons — Part 1: Graphite classification by visual analysis
(ISO 945-1:2008) EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1:2005) EN ISO 6892-1, 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 grey cast iron cast material, mainly iron and carbon based, carbon being present mainly in the form of flake (lamellar) graphite particles
NOTE 1 Grey cast iron is also known as flake graphite cast iron, and less commonly as lamellar graphite cast iron. NOTE 2 Graphite form, distribution and size are specified in EN ISO 945-1. 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 SIST EN 1561:2011

separately cast sample sample cast in a separate sand mould under representative manufacturing conditions and material grade 3.4
side-by-side cast sample
sample cast in the mould alongside the casting, with a joint running system 3.5
cast-on sample sample attached directly to the casting
3.6 relevant wall thickness w
...