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SVENSK STANDARD

Fastställd/Approved: 2014-06-15 Publicerad/Published: 2014-06-16 Utgåva/Edition: 1

Språk/Language: engelska/English ICS: 77.080.10

SS-EN 16482:2014

Gjutna material – Stränggjutet grå- och segjärn Founding – Continuous cast iron bars

This preview is downloaded from www.sis.se. Buy the entire This preview is downloaded from www.sis.se. Buy the entire This preview is downloaded from www.sis.se. Buy the entire This preview is downloaded from www.sis.se. Buy the entire standard via https://www.sis.se/std-102182

standard via https://www.sis.se/std-102182 standard via https://www.sis.se/std-102182 standard via https://www.sis.se/std-102182

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Standarder får världen att fungera

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Vill du veta mer om SIS eller hur standarder kan effektivisera din verksamhet är du välkommen in på www.sis.se eller ta kontakt med oss på tel 08-555 523 00.

Standards make the world go round

SIS (Swedish Standards Institute) is an independent non-profit organisation with members from both the private and public sectors. We are part of the European and global network that draws up international standards. Standards consist of documented knowledge developed by prominent actors within the industry, business world and society.

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© Copyright / Upphovsrätten till denna produkt tillhör SIS, Swedish Standards Institute, Stockholm, Sverige.

Användningen av denna produkt regleras av slutanvändarlicensen som återfinns i denna produkt, se standardens sista sidor.

© Copyright SIS, Swedish Standards Institute, Stockholm, Sweden. All rights reserved. The use of this product is governed by the end-user licence for this product. You will find the licence in the end of this document.

Upplysningar om sakinnehållet i standarden lämnas av SIS, Swedish Standards Institute, telefon 08-555 520 00.

Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard.

Information about the content of the standard is available from the Swedish Standards Institute (SIS), telephone +46 8 555 520 00. Standards may be ordered from SIS Förlag AB, who can also provide general information about Swedish and foreign standards.

Europastandarden EN 16482:2014 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN 16482:2014.

The European Standard EN 16482:2014 has the status of a Swedish Standard. This document contains the official version of EN 16482:2014.

Denna standard är framtagen av kommittén för Gjutet järn och stål, SIS / TK 130.

Har du synpunkter på innehållet i den här standarden, vill du delta i ett kommande revideringsarbete eller vara med och ta fram andra standarder inom området? Gå in på www.sis.se - där hittar du mer information.

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EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM

EN 16482

June 2014

ICS 77.080.10

English Version

Founding - Continuous cast iron bars

Fonderie - Barres de fonte par coulée continue Gießereiwesen - Gusseisen-Strangguss

This European Standard was approved by CEN on 28 February 2014.

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 C O M I T É E U R O P É E N D E N O R M A L I S A T I O N E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G

CEN-CENELECManagement Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

Ref. No. EN 16482:2014 E

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2

Contents

Page

Foreword ...3

Introduction ...4

1 Scope ...5

2 Normative references ...5

3 Terms and definitions ...5

4 Designation ...6

5 Order information ...6

6 Manufacture ...6

7 Requirements ...7

8 Sampling ... 12

9 Test methods ... 12

10 Retests ... 15

11 Inspection documentation ... 16

Annex A (informative) Guidance values for hardness of spheroidal graphite cast iron bars ... 17

Annex B (informative) Dimensional allowances for continuous cast bars ... 18

B.1 Machining allowances ... 18

B.2 Ovality allowances ... 19

B.3 Swell allowances... 19

Annex C (normative) Location of samples cut from a bar ... 20

Annex D (informative) Additional information on mechanical and physical properties of spheroidal graphite cast irons ... 21

Bibliography ... 25 SS-EN 16482:2014 (E)

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3

Foreword

This document (EN 16482:2014) has been prepared by Technical Committee CEN/TC 190 “Foundry technology”, the secretariat of which is held by DIN.

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 December 2014 and conflicting national standards shall be withdrawn at the latest by December 2014.

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.

Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 7 “Spheroidal graphite, silicon molybdenum and ausferritic cast iron” to prepare the following standard:

EN 16482, Founding — Continuous cast iron bars

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, 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.

SS-EN 16482:2014 (E)

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4

Introduction

The European Standards EN 1561 [4] and EN 1563 [5] classify grey cast irons and spheroidal graphite cast irons respectively, which are cast in sand moulds or moulds of comparable thermal behaviour.

This European Standard classifies grey cast iron and spheroidal graphite cast iron bars, which are produced by the continuous casting process.

Due to the high cooling rate during solidification and further cooling, both graphite and matrix structure differ from those obtained by sand casting and consequently the mechanical properties in relation to section thickness [8], [9].

The mechanical properties of continuous cast iron bars are evaluated on machined test pieces prepared from samples cut from the bars.

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 iron or spheroidal graphite cast iron, for example: thermal capacity, thermal diffusivity, damping capacity, thermo-cycle fatigue and toughness.

Additional technical data for grey cast irons is given in EN 1561 and for spheroidal graphite cast irons in EN 1563 and Annex D of this European Standard.

SS-EN 16482:2014 (E)

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5

1 Scope

This European Standard defines the grades of grey cast iron and spheroidal graphite cast iron bars, which have been produced by the continuous casting process.

This European Standard specifies the characterizing properties of grey cast iron bars by either:

a) the tensile strength measured on machined test pieces prepared from samples cut from the bars, or b) the hardness measured on the bars.

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 the characterizing properties of spheroidal graphite cast iron bars by the tensile strength measured on machined test pieces prepared from samples cut from the bars.

This European Standard specifies 4 grades of grey cast iron and 14 grades of spheroidal graphite cast iron by a classification based on tensile strength and 4 grades of grey cast iron by a classification based on Brinell hardness.

This European Standard specifies also the straightness of the bars.

This European Standard does not cover technical delivery conditions for iron castings (see EN 1559-1 [1] and EN 1559-3 [2]).

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 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) EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)

EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1)

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 to entry: Grey cast iron is also known as flake graphite cast iron, and less commonly as lamellar graphite cast iron.

[SOURCE: EN 1561:2011, 3.1]

SS-EN 16482:2014 (E)

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3.2 spheroidal graphite cast iron

cast material, iron, carbon and silicon based, the carbon being present mainly in the form of spheroidal graphite particles

Note 1 to entry: Spheroidal graphite cast iron is also known as ductile iron, and less commonly as nodular iron.

[SOURCE: EN 1563:2011, 3.1]

3.3 ferritic to pearlitic cast irons

grey cast iron and spheroidal graphite cast iron with a matrix containing ferrite or pearlite or a combination of both

3.4 solid-solution strengthened ferritic spheroidal graphite cast iron

spheroidal graphite cast iron with a matrix mainly consisting of ferrite, solution strengthened mainly by silicon 3.5 graphite spheroidizing treatment

operation that brings the liquid iron into contact with a substance to produce graphite in the predominantly spheroidal (nodular) form during solidification

Note 1 to entry: This operation is often followed by a second one called inoculation.

[SOURCE: EN 1563:2011, 3.4]

3.6 sample

quantity of material cut from the continuous cast bar to represent the cast material

4 Designation

The material shall be designated in accordance with Table 1, Table 2, or Table 3.

NOTE The designation system is specified in EN 1560 [3].

5 Order information

The following information shall be supplied by the purchaser:

a) the number of this European Standard;

b) the designation of the material;

c) the dimensions of the bar;

d) any special requirements.

All requirements shall be agreed between the manufacturer and the purchaser by the time of acceptance of the order, e.g. technical delivery conditions according to EN 1559-1 and EN 1559-3.

6 Manufacture

The methods of producing grey cast iron and spheroidal graphite cast iron continuous cast bars and their chemical compositions shall be left to the discretion of the manufacturer who shall ensure that the requirements of this European Standard are met for the material grade specified in the order.

SS-EN 16482:2014 (E)

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7 For the cast irons to be used in special applications, the chemical composition and the heat treatment may be the subject of an agreement between the manufacturer and the purchaser.

All agreements between the manufacturer and the purchaser shall be made by the time of the acceptance of the order.

7 Requirements

7.1 Characterizing properties

The order shall specify in an unambiguous manner whether the tensile strength measured on a test piece machined from samples cut from the continuous cast bars or the Brinell hardness measured on the bars is the characterizing property. If it does not do so, then the manufacturer shall characterize the material according to tensile strength.

7.2 Tensile properties 7.2.1 General

The property values apply to grey cast iron and spheroidal graphite cast iron bars produced by the continuous casting process.

Tensile properties are dependant of the bar diameter as shown in Table 1 and Table 2.

For rectangular bars, the corresponding diameter D for the determination of the minimum tensile properties shall be calculated with Formula (1):

( )

(

H B

)

B D H

+

×

= 2× (1)

where

D is the corresponding bar diameter in millimetres (mm);

H is the height of the bar in millimetres (mm);

B is the width of the bar in millimetres (mm).

NOTE Tensile testing requires sound test pieces in order to guarantee pure uni-axial stress during the test.

For bar diameters > 400 mm, the minimum tensile properties to be obtained shall be agreed between the manufacturer and the purchaser by the time of acceptance of the order.

7.2.2 Test pieces machined from samples cut from the bar

The tensile properties, when measured in accordance with 9.1 using test pieces machined from samples cut from the bar, shall be in accordance with the requirements of Table 1 for grey cast irons or Table 2 for spheroidal graphite cast irons.

SS-EN 16482:2014 (E)

References

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