kSIST FprEN 1559-3:2026

• Abstract:

  This document specifies the additional technical delivery conditions for castings made from all cast iron materials.; This document applies to iron castings produced in sand or permanent moulds or by centrifugal casting, continuous casting or investment casting.

• Status: Not Published
• Public Enquiry End Date: 09-Dec-2025
• ICS: 77.140.80 - Iron and steel castings
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 09-Jul-2026
• Due Date: 27-Aug-2026
• Ref Project: FprEN 1559-3 - Founding - Technical conditions of delivery - Part 3: Additional requirements for iron castings

• Revises: SIST EN 1559-3:2011 - Founding - Technical conditions of delivery - Part 3: Additional requirements for iron castings
• Effective Date: 02-Feb-2023

Overview

kSIST FprEN 1559-3:2026, titled Founding - Technical conditions of delivery - Part 3: Additional requirements for iron castings, specifies supplementary technical delivery conditions for castings made from all iron casting materials. Developed by SIST and harmonized with European Standardization (CEN), this standard applies to iron castings produced using various methods, including sand moulds, permanent moulds, centrifugal casting, continuous casting, and investment casting.

This document is part of the broader EN 1559 series, which establishes requirements to assure quality, consistency, and compliance across European foundry operations. Part 3 builds on the general requirements in EN 1559-1 and is intended as a complement to it, focusing specifically on the unique considerations and practices associated with iron castings.

Key Topics

• Scope and Applicability

  • Covers requirements for all types of iron castings, regardless of manufacturing method: sand, permanent, centrifugal, continuous, and investment casting.
  • Provides additional guidance for delivery conditions beyond those in the base standard EN 1559-1.

• Information Exchange

  • Specifies mandatory order details, including wall thickness and optional points like as-cast or heat-treated condition, surface treatment intentions, and test unit formation.
  • Emphasizes early agreement between manufacturer and purchaser on technical specifications.

• Manufacturing and Inspection

  • Procedures for qualified welding operations on iron castings, referencing standards such as EN 287-6 and EN ISO 15614-3.
  • Requirements for non-destructive testing (NDT), including magnetic particle, penetrant, radiographic, and ultrasonic testing. Inspection guidelines are provided in Annex A and B.
  • Approaches for defining acceptance levels for discontinuities and surface roughness based on location and criticality.

• Acceptance Criteria and Testing

  • Guidance for setting acceptance criteria for both the inner and outer condition of castings, including handling of discontinuities and visual surface checks.
  • Processes for retesting, sorting, and reprocessing castings if initial testing does not meet agreed standards.
  • Documentation, marking, and packaging requirements to support traceability and quality assurance.

Applications

This standard delivers practical value for a wide range of stakeholders in the iron castings supply chain:

• Foundries and Manufacturers

  • Ensures consistency in technical requirements and facilitates clear contractual agreements with purchasers.
  • Supports process optimization for sand casting, permanent moulds, centrifugal casting, and related techniques.

• Purchasers and Engineering Teams

  • Provides tools for specifying technical delivery requirements, acceptance levels, and inspection regimes for iron castings in procurement and project engineering.
  • Helps mitigate risks by establishing clear acceptance and rejection criteria, including for non-destructive testing and surface examination.

• Quality and Compliance Professionals

  • Guarantees alignment with current European best practices and regulatory frameworks.
  • Streamlines audit processes with harmonized inspection, reporting, and documentation protocols.

The standard is critical for industries such as automotive, heavy machinery, pipeworks, and civil engineering, where reliability of iron components-such as engine blocks, housings, or piping-depends on well-defined technical conditions of delivery.

Related Standards

• EN 1559-1: Founding - Technical conditions of delivery - Part 1: General
• EN 1559-2: Additional requirements for steel castings
• EN 1559-4: Additional requirements for aluminium alloy castings
• EN 1560: Designation system for cast iron
• EN 1561-1564, EN 12513, EN 13835, EN 16079, EN 16124: Material standards for various cast iron types (grey iron, malleable, spheroidal graphite, austenitic, and others)
• EN 287-6, EN ISO 15614-3, EN 1011-8: Welding of cast irons
• EN 1369, EN 1370, EN 1371-1, EN 12680-3, EN 12681-1/2, EN ISO 5534-1, EN ISO 16710, EN 14784-1: Non-destructive testing of castings

These related standards ensure comprehensive guidance across all aspects of iron casting production and quality assurance, supporting compliance, efficiency, and performance within the European foundry sector.

SLOVENSKI STANDARD
oSIST prEN 1559-3:2025
01-december-2025
Livarstvo - Tehnični dobavni pogoji - 3. del: Dodatne zahteve za litoželezne ulitke
Founding - Technical conditions of delivery - Part 3: Additional requirements for iron
castings
Gießereiwesen - Technische Lieferbedingungen - Teil 3: Zusätzliche Anforderungen an
Eisengussstücke
Fonderie - Conditions techniques de fourniture - Partie 3: Spécifications
complémentaires pour les pièces moulées en fonte
Ta slovenski standard je istoveten z: prEN 1559-3
ICS:
77.140.80 Železni in jekleni ulitki Iron and steel castings
oSIST prEN 1559-3:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 1559-3:2025
oSIST prEN 1559-3:2025
DRAFT
EUROPEAN STANDARD
prEN 1559-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2025
ICS 77.140.80 Will supersede EN 1559-3:2011
English Version
Founding - Technical conditions of delivery - Part 3:
Additional requirements for iron castings
Fonderie - Conditions techniques de fourniture - Partie Gießereiwesen - Technische Lieferbedingungen - Teil
3: Spécifications complémentaires pour les pièces 3: Zusätzliche Anforderungen an Eisengussstücke
moulées en fonte
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 190.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1559-3:2025 E
worldwide for CEN national Members.

oSIST prEN 1559-3:2025
prEN 1559-3:2025 (E)
Contents Page
European foreword . 3
Introduction . 4
4.1 Mandatory information . 6
4.2 Optional information . 6
4.3 Drawings, patterns and tools . 6
4.4 Information on the mass . 6
4.5 Preliminary sample . 6
4.6 Initial sample . 6
6.1 Manufacturing process . 7
6.2 Welding operations . 7
7.1 General. 7
7.2 Material . 7
7.3 Casting . 7
8.1 General. 9
8.2 Type of inspection documents and type of inspection . 9
8.3 Test unit . 9
8.4 Samples . 9
8.5 Test . 9
8.6 Invalidation of tests . 9
8.7 Retests . 10
8.8 Sorting and reprocessing . 10
Annex A (informative) Guidelines for the specification of acceptance criteria for the outer
and inner conditions (non-destructive testing) . 11
A.1 General. 11
A.2 Casting discontinuities . 11
A.3 General requirements . 11
A.4 Discontinuity classes . 11
A.5 Machined surfaces and bores . 12
A.6 Marked zones . 12
Annex B (informative) Guidelines for the specification of acceptance criteria for surface
condition (visual check) . 13
B.1 General. 13
B.2 Surface roughness . 13
B.3 Visual examination of surface irregularities . 14
Annex C (informative) Significant technical changes between this document and the
previous edition . 15
Bibliography . 16
oSIST prEN 1559-3:2025
prEN 1559-3:2025 (E)
European foreword
This document (prEN 1559-3:2025) has been prepared by Technical Committee CEN/TC 190 “Foundry
technology”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1559-3:2011.
The significant technical changes with respect to EN 1559-3:2011 are given in Annex C, Table C.1.
This document is one of a series of European Standards for technical delivery conditions for castings. The
other standards in this series are:
EN 1559-1, Founding - Technical conditions of delivery - Part 1: General
EN 1559-2, Founding - Technical conditions of delivery - Part 2: Additional requirements for steel castings
EN 1559-4, Founding - Technical conditions of delivery - Part 4: Additional requirements for aluminium
alloy castings
EN 1559-5, Founding - Technical conditions of delivery - Part 5: Additional requirements for magnesium
alloy castings
EN 1559-6, Founding - Technical conditions of delivery - Part 6: Additional requirements for zinc alloy
castings
oSIST prEN 1559-3:2025
prEN 1559-3:2025 (E)
Introduction
CEN/TC 190 “Foundry Technology” has prepared a series of material standards covering the following
cast irons:
— grey cast irons [1];
— malleable cast irons [2];
— spheroidal graphite cast irons [3];
— ausferritic spheroidal graphite cast irons [4];
— abrasion resistant cast irons [5];
— austenitic cast irons [7];
— compacted (vermicular) graphite cast irons [8];
— low alloyed ferritic spheroidal graphite cast irons for elevated temperature applications [9].
In order to assist manufacturers and purchasers to prepare proper contractual arrangements and
prevent misunderstanding, CEN/TC 190 approved the preparation of a series of standards covering
technical delivery conditions. These have been prepared as separate parts.
This document covers the additional technical delivery conditions for all the cast iron materials, e.g.
optional information, manufacturing process, welding operation, additional requirements regarding the
condition of the casting, test methods.
This document cannot be used alone for compiling a specification for ordering and supplying iron
castings, but as a complement to EN 1559-1.
oSIST prEN 1559-3:2025
prEN 1559-3:2025 (E)
1 Scope
This document specifies the additional technical delivery conditions for castings made from all cast iron
materials.
This document applies to iron castings produced in sand or permanent moulds or by centrifugal casting,
continuous casting or investment casting.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 287-6, Qualification test of welders - Fusion welding - Part 6: Cast irons
EN 1011-8, Welding - Recommendations for welding of metallic materials - Part 8: Welding of cast irons
EN 1369, Founding - Magnetic particle testing
EN 1370, Founding - Examination of surface condition
EN 1371-1, Founding - Liquid penetrant testing- Part 1: Sand, gravity die and low pressure die castings
EN 1559-1, Founding - Technical conditions of delivery - Part 1: General
EN 1560, Founding - Designation system for cast iron - Material symbols and material numbers
EN 12680-3, Founding - Ultrasonic testing - Part 3: Spheroidal graphite cast iron castings
EN 12681-1, Founding - Radiographic testing - Part 1: Film techniques
EN 12681-2, Founding - Radiographic testing - Part 2: Techniques with digital detectors
EN 14784-1, Non-destructive testing - Industrial computed radiography with storage phosphor imaging
plates - Part 1: Classification of systems
EN ISO 3452-1, Non-destructive testing - Penetrant testing - Part 1: General principles (ISO 3452-1)
EN ISO 5579, Non-destructive testing - Radiographic testing of metallic materials using film and X- or
gamma rays - Basic rules (ISO 5579)
EN ISO 9934-1, Non-destructive testing - Magnetic particle testing - Part 1: General principles (ISO 9934-1)
EN ISO 15614-3, Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 3: Fusion welding of non-alloyed and low-alloyed cast irons (ISO 15614-3)
EN ISO 16371-2, Non-destructive testing - Industrial computed radiography with storage phosphor
imaging plates - Part 2: General principles for testing of metallic materials using X-rays and gamma rays
(ISO 16371-2)
EN ISO 16810, Non-destructive testing - Ultrasonic testing - General principles (ISO 16810)
oSIST prEN 1559-3:2025
prEN 1559-3:2025 (E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1559-1 and of the applicable
material standard apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
4 Information to be supplied by the purchaser
4.1 Mandatory information
Requirements shall be met in accordance with the corresponding clause in EN 1559-1.
The relevant wall thickness shall be given in the order.
4.2 Optional information
Where applicable, the enquiry and order shall include other details, such as requirements for
a) an as-cast condition;
NOTE Heat treatment of malleable cast irons or ausferritic spheroidal graphite cast irons is a function of the
material and is at the discretion of the manufacturer to achieve the desired mechanical properties.
b) special or subsequent heat treatment if required (together with the heat-treatment conditions);
c) heat treatment for stress relieving; it shall be agreed upon between the manufacturer and the
purchaser;
d) intentions to enamel, galvanize, plate, etc. the castings;
e) sequence of machin
...