Foreword

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This document was prepared by Technical Committee ISO/TC 35 Paints and varnishes, Subcommittee SC 12, Preparation of steel substrates before application of paints and related products.

A list of all parts in the ISO 11124 series can be found on the ISO website.

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1 Scope

This document specifies requirements for stainless steel (shot and irregulars), as supplied for blast-cleaning processes. It specifies ranges of particle sizes, together with corresponding grade designations. Values are specified for hardness, density, defect/structural requirements, metallographic structure and chemical composition.

The requirements specified in this document apply to abrasives supplied in the new condition only.

Test methods for metallic blast-cleaning abrasives are given in the various parts of ISO 11125 .

Stainless steel shot and irregulars are used in both static and site blasting equipment. They are most often selected where there is a possibility for the recovery and re-use of the abrasive.

NOTE 1 Although this document has been developed for preparation of steelwork, these materials are predominantly used for non-ferrous substrates. The properties specified will generally be appropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques, and can be used for applications where no subsequent coating is applied.

NOTE 2 Whenever dissimilar metals are used together, galvanic corrosion can occur.

2 Normative references

3 Terms and definitions

4 Designation of abrasives

5 Sampling

6 Requirements for stainless steel (shot and irregulars)

7 Package identification and lot traceability

8 Information to be provided by the manufacturer or supplier