BS ISO 11972:2015 pdf download – Corrosion-resistant cast steels for general applications
This International Standard specifies cast steels for general corrosion-resistant applications. Thegrades covered by this International Standard represent types of alloy steel castings suitable for broadranges of application which are intended for a wide variety of corrosion applications.
NOTE Annex Agives information on ISo grade designation and available UNS numbers which are similar tothe Iso grade designation.
The following documents,in whole or in part, are normatively referenced in this document and areindispensable for its application.For dated references,only the edition cited applies.For undatedreferences, the latest edition of the referenced document (including any amendments) applies.
ISo 4990, Steel castings — General technical delivery conditions
3 General conditions for delivery
Materials furnished according to this International Standard shall conform to the applicablerequirements of lSO 4990 including the supplementary requirements that are indicated on the inquiryand purchase order.
The steel shall conform to the requirements for chemical composition specified in Table 1.
Steel used for castings shall conform to the mechanical property requirements given in Table 2 up tothe maximum ruling thickness.Verification of impact tests is not required except when indicated bythe customer. Test blocks used to verify mechanical properties shall not have a thickness exceeding150 mm. For samples removed from castings, the mechanical properties required shall be agreedbetween the manufacturer and purchaser.
6 Heat treatment
Castings shall be heat treated in accordance with the requirements in Table 3.
7 Supplementary requirements
A list of standardized supplementary requirements for use at the option of the purchaser is included in ISO 4990. Others, whether or not in ISO 4990, may be used with this International Standard upon agreement by the manufacturer and purchaser.BS ISO 11972 pdf download.