Designation: A /A M – 95 (Reapproved ) An American National Standard. Standard Practice for. Steel Castings, Surface Acceptance Standards, . 6 Apr This standard is issued under the fixed designation A/AM; 1 This practice is under the jurisdiction of ASTM Committee A01 on Steel. ASTM A/AM: Standard Practice for Steel Castings, Surface Acceptance Standards, Visual Examination.
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Metal Removal Marks Mechanical Dressing. Metal Removal Marks Thermal Dressing. It should assist in avoiding misunderstanding arising from imprecise descriptions at the astm a802 stage and should astm a802 help in defining a surface that is amendable to a particular techniques of non-destructive testing. Expansion Discontinuities – slightly raised surface irregularities.
Fusion Discontinuities – surface irregularities giving a wrinkled appearance. The object of this standard is to facilitate cooperation between founder astm a802 casting purchaser in determining the surface conditions, and quality astm a802 required. This abstract is a brief summary of the referenced standard. Level A for surface texture, Level B for nonmetallic inclusions, Level C for gas porosity, Level D for solidification discontinuities, Level E for sand expansion discontinuities, Level F for metal inserts, Level G for thermally cut surfaces, Level H for mechanically prepared surfaces, and Level J for welded surfaces.
Surface Texture – the natural surface of the casting after shot blasting. Historical Version s – astm a802 previous versions of standard.
Gas Porosity – Indications of gas t the casing surface. The casting designer and purchasers can denote the level one to four on the drawings as the requirements of surface quality, then the founder, Dandong Foundry, will check the photos, and learn about the requirements. Metal Removal Astm a802 Mechanical Dressing – surface remaining after using a mechanical means of dressing a cast surface or a previously thermally dressed surface.
This practice covers the standard acceptance criteria for astm a802 determination of surface texture, surface roughness, and surface discontinuities of steel castings by visual examination.
The comparator can also astm a802 used as the standard of quality inspection.
Metal Removal Marks Welds – indications of astm a802 fully or partially removed by thermal or mechanical dressing. Visual Inspection Acceptance Criteria. Astm a802 use of the comparators is superior to methods based on photographs which can introduce uncertainties concerning interpretation, particularly with regards o the depth of surface irregularities.
Non-Metallic Inclusions – Non-metallic material trapped on the surface of castings. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. It is informational only and not an official part of the standard; the astm a802 text of astm a802 standard itself must be referred to for its use and application. Link to Active This link will always route to the current Active version of the standard.
ASTM A Surface Acceptance Standard for Steel Castings – Mookambika Metallurgical Solutions
Four levels of acceptance standards are provided. It is the responsibility of the user of this standard to establish appropriate safety and health practices astm a802 determine the applicability of astj limitations prior to use.
Inserts – indications of chaplets sand core supports or internal chills.