20/30425800 DC - BS EN 1561. Founding. Grey cast irons

20/30425800 DC

BS EN 1561. Founding. Grey cast irons

Status : Current, Draft for public comment   Published : December 2020



This document 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. NOTE This document can also be applicable to grey cast irons cast in permanent moulds, provided the related cast samples are casted under the same conditions as the castings. This document specifies the characterizing properties of grey cast irons by either a) the tensile strength of cast samples, b) if agreed by the manufacturer and the purchaser, the tensile strength of samples cut from a casting, c) the hardness determined 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 c) may be specified. This document specifies six grades of grey cast iron by a classification based on tensile strength determined 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 document does not cover technical delivery conditions for iron castings; see EN 1559-1 [3] and EN 1559-3 [4]. This document does not apply to grey cast irons used for pipes and fittings according to EN 877 [5].

Standard Number20/30425800 DC
TitleBS EN 1561. Founding. Grey cast irons
StatusCurrent, Draft for public comment
Publication Date10 December 2020
Normative References(Required to achieve compliance to this standard)EN 10204, ISO 945-1, EN ISO 6892-1, EN ISO 6506-1, ISO 6892-1, ISO 6506-1, EN ISO 945-1
Informative References(Provided for Information)ISO/TR 15931, EN 1560, EN 1559-3, ISO 7500-1, EN 1370, EN 10027-2, EN 877, EN 1559-1, EN ISO 7500-1, ISO 185:2020
International RelationshipsprEN 1561:2020
Draft Expiry Date03 February 2021
DescriptorsSymbols, Tensile testing, Grades (quality), Hardness, Specific heat, Grey cast-iron, Production metallurgy, Castings, Coercivity, Foundry engineering, Test specimens, Elongation, Electrical resistivity, Brinell hardness measurement, Poisson ratio, Proof stress, Density, Yield strength, Cast-iron, Dimensions, Unalloyed cast-iron, Modulus of elasticity, Thickness, Strength of materials, Thermal conductivity, Compressive strength, Tensile strength, Permeability, Thermal expansion
Title in FrenchFonderie - Fontes à graphite lamellaire
Title in GermanGießereiwesen - Gusseisen mit Lamellengraphit
File Size631 KB
NotesWarning: this draft is not current beyond its expiry date for comments.

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