ASTM A802 - 19

Standard Practice for Steel Castings, Surface Acceptance Standards, Visual Examination

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1.1 This practice covers the acceptance criteria for the surface inspection of steel castings by visual examination. Four levels of acceptance standards are provided.1.2 Acceptance levels utilize Steel Castings Research and Trade Association (SCRATA)2 graded reference comparators for the visual determination of surface texture, surface roughness, and surface discontinuities described as follows: Acceptance levels A – Surface TextureB – Nonmetallic InclusionsC – Gas PorosityD – Solidification DiscontinuitiesE – Sand Expansion DiscontinuitiesF – Metal InsertsG – Thermally Cut SurfacesH – Mechanically Prepared SurfacesJ – Welded Surfaces1.3 Descriptions of terms related to casting discontinuities are in Section 2.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory lim

Antal sider: 3

Internationale relationer :

ICS: 77.140.80 - Jern- og stålstøbegods

Varenummer: A012460