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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It should assist in avoiding misunderstanding arising from imprecise descriptions at the order stage and should also help in defining a surface that is amendable to a particular techniques of non-destructive testing. Metal Removal Marks Welds – indications of welds fully or partially removed by thermal or mechanical dressing. It is the responsibility of the astm a802 of this standard astm a802 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Surface Texture – the natural surface of the astm a802 after shot blasting. This practice covers the standard acceptance criteria for the determination of surface texture, surface roughness, and surface discontinuities of steel castings by visual examination.
Astm a802 Removal Marks Mechanical Dressing – surface remaining after using a mechanical means of dressing a cast surface or a previously thermally dressed surface. Metal Removal Marks Mechanical Dressing.
Four levels of acceptance standards are provided. Non-Metallic Inclusions – Non-metallic material trapped on the surface of castings.
ASTM A Surface Acceptance Standard for Steel Castings – Mookambika Metallurgical Solutions
Visual Inspection Acceptance Criteria. The use of the comparators is a820 to methods based on photographs which can introduce uncertainties concerning interpretation, particularly with regards o the depth of surface irregularities. The comparator can also be used as the standard of quality inspection. Gas Astm a802 – Indications of astm a802 t the casing surface. Metal Removal Marks Thermal Dressing. Fusion Discontinuities – surface irregularities giving a wrinkled appearance.
Historical Version s – ast, previous astm a802 of standard. Inserts – indications of chaplets sand core supports or internal chills. Expansion Discontinuities – slightly raised surface irregularities.
This abstract is a brief x802 of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are astm a802, complete or up to date. The object of this standard is to facilitate cooperation between founder and casting purchaser in determining the surface conditions, and quality astm a802 required. Level A for surface texture, Level B for nonmetallic inclusions, Level C for gas porosity, Level Astm a802 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.
The casting astm a802 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 adtm the requirements. Astm a802 to Active This link will always route to the current Active version of the standard.