ASTM E186 PDF
This is a text-only standard. This standard extends the application of steel casting reference radiographs E, E, and E The reference radiograph films. This standard is issued under the fixed designation E ; the number 1 These reference radiographs are under the jurisdiction of ASTM Committee. E-7 on. ASTM E Standard Reference Radiographs for Heavy-Walled (2 to 4 1/2-in. ( 51 to mm)) Steel Castings.
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The basis of application for these reference radiographs requires a prior purchaser supplier agreement of radiographic examination attributes and classification criterion as described in Sections 45and 6 of this standard. This means that every time you visit this website you will need to enable or disable cookies again. If the document is revised or amended, you will be notified by email. Although it is not economically viable to carry out an x-ray test on every anode, it is possible to demand that anodes supplied should pass an x-ray criteria level such as level 2 or better and that a percentage of anodes should be tested.
Following is a list of discontinuity categories, types and severity levels for the adjunct reference radiographs of this standard:. Link to Active This link will always route to the current Active version of the standard. Likewise, if a mechanical test bar was machined out of this section of the casting, the results would fall far short of those exhibited by any section of the centrifugally-cast anode.
This is the same for level 4 and 5 as these flaws are increasing and the design life will be dramatically shortened. Strictly Necessary Cookies Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. The table below represents the most up to date summary for assessing the design life against the x-ray level acceptance criteria.
Reference radiographs containing ungraded discontinuities are provided as a guide for recognition of a specific casting discontinuity type where severity levels are not needed. However, the size and frequency of these flaws are sufficiently small so their existence does not immediately require the need for the casting to be scrapped. These connections can be made in the factory or in the eld. In the image, this area has been de ned as a level 3 defect.
Section 9 addresses purchaser supplier requisites where weld repairs to castings may be required. E Reference Radiographs for Heavy-Walled 2 to in. This change in section is an inherent weakness in the design of a die-cast anode because the change in wall thickness means the thicker part of the casting cools more slowly than the narrow section.
Historical Version s – view previous versions of standard. Categories and severity levels for each discontinuity type represented by these reference radiographs are described in 1.
A direct comparison of Centrifugally Cast Tubular Anodes and Die Cast Tubular Anodes
Called Type 3 in previous revisions. This is a unique feature of the Centrifugal Casting method and is highly advantageous to the integrity of the casting. We have retained these pieces for further testing by any interested party, if so desired. The x-ray image of the die-cast anode above shows a serious casting aw astk as a dark shadow in the connection area and is a real-life sample con rming r186 di culties encountered with this design. In some applications, reference radiographs for steel castings may not be entirely applicable to ductile cast iron material dependent upon design or other usage criteria.
Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard.
This includes cobalt or equivalent isotope radiation and from 2 — MV up to 4 — MV X rays- Set of 28 plates nominal 5 by 8 in. At level 2 for the acceptance criteria, there are some specific flaws that will influence the overall life of the anode.
ASTM E – 15 Standard Reference Radiographs for Ductile Iron Castings
Referenced Documents purchase separately The e16 listed below are referenced within the subject standard but are not provided as part of the standard.
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie e86. These changes could include changes in the films or processing chemicals used, changes in the dies or printing for the cardboard mats, etc. Following is a list of discontinuity categories, types and severity levels for the adjunct reference radiographs of this standard: This standard is also available to be included in Standards Subscriptions.
The best way to verify the integrity of the sub-surface structure of a casting is by x-ray. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections awtm the website you find most interesting and useful.
E Reference Radiographs for Heavy-Walled to in. Reference radiographs represented by these steel casting standards may be used, as agreed upon in a purchaser supplier agreement, for radiation energy aastm, thicknesses or both outside the range of these standards when determined applicable for the casting service application.
This slower cooling rate not only causes an inferior grain structure that is almost as poor as sand-cast anodes, but also necessitates an additional riser to help feed the shrinkage that is catalysed from the change in section.
This x-ray shows our centrifugally-cast anode.
Reference radiographs containing ungraded discontinuities are provided as a guide for recognition of a specific casting discontinuity type where severity levels may not be needed. These are our key findings.
Need more than one copy? Reference radiographs for other steel casting thicknesses may be found in Reference Radiograph standards E and E Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard. E Reference Radiographs for Heavy-Walled to astmm in. Add to Alert PDF. To contact us about this report or any other area we can help with please use our ast, page.
Categories and severity levels for each discontinuity type represented by these reference radiographs are described within each applicable standard above. This standard extends the application of steel casting reference radiographs E, E, and E We have 3 XRF chemical analysis machines astk both the UK and China and our pricing re ects the signi astn disparity between production costs when comparing foundry production costs in China to those in North America.
Called Type 1 in previous revisions 2 Cb — feathery shrinkage — Severity levels 1 through 5. We have anodes stocked in 2 locations in the USA, utilising purpose-made connectors that have been used in over 1 million anodes over the last 35 years see g 4 for TA2 and TA5A connectors.