What is ISO 4990 - Steel castings about?
ISO 4990 specifies the general technical delivery requirements for the supply of steel, nickel, and cobalt alloy castings, including the requirements for the selection and preparation of samples and test pieces.
ISO 4990 also specifies a group of supplementary requirements which may be applied to steel, nickel, and cobalt alloy castings. These requirements are provided for use when additional testing or inspection is desired and apply only when individually specified by the end-user.
Note: When a material or product standard differs from this delivery specification, the material or product standard shall apply. In the case of investment castings, ISO 16468 will apply.
Who is ISO 4990 - Steel castings for?
ISO 4990 on general technical delivery requirements of steel castings is relevant to:
- Manufacturers of pattern equipment
- Testing authorities
- Foundries, cast industries, and metal factories
- Metalworkers
- Production welders
Why should you use ISO 4990 - Steel castings?
ISO 4990 helps its users to provide the necessary requirements for testing and inspection of steel, nickel, and cobalt alloy castings. The guidelines provided in ISO 4990 enable the various stakeholders to identify batches of castings and designate tests and inspections specific to them.
Overall, these guidelines of ISO 4990 facilitate through testing and inspection procedures which enhances the quality control phase for these steel castings.
What’s changed since the last update?
BS ISO 4990:2015 replaces ISO 4990:2003, which has been technically revised with the following changes:
- Clause 2: New and replacement normative references have been added
- 3.1 has been revised
- 4.2 has been developed
- 6.2.2.1 has been moved to 6.2.3, and the sub-clauses have been renumbered
- In 6.2.2.4, editorial changes have been carried out to eliminate confusion over paragraph identification, and the last paragraph and the reference to ISO/TR 9769 have been deleted
