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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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 e168 route to the current Active version of the standard. Following is a list of discontinuity categories, types and severity levels for the adjunct reference radiographs of this standard: Many companies are now specifying that anodes should be supplied that pass an x-ray test to level 1, level 2 or level 3 ASTM E 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.
A direct comparison of Centrifugally Cast Tubular Anodes and Die Cast Tubular Anodes
This x-ray shows a die-cast anode. The x-ray image of the die-cast anode above shows a serious casting aw visible as a dark shadow in the connection area and is astn real-life sample con rming the di culties encountered with this design. Subscription pricing is determined by: This is a text-only standard. Called Type 2 in previous revisions.
ASTM E – 15 Standard Reference Radiographs for Ductile Iron Castings
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.
If the document is revised or amended, you will be notified by email. Each volume consists of three categories of graded discontinuities in increasing severity levels, and three 1e86 of ungraded discontinuities. At level 2 for the acceptance criteria, there are some specific flaws that will influence the overall life of the anode. Following is a list of discontinuity categories, types and severity levels for the adjunct reference radiographs of this standard: 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.
Called Type 1 in previous revisions 2 Cb — feathery shrinkage — Severity levels 1 through 5. This standard is also available to be included in Standards Subscriptions. Categories and severity levels for each discontinuity type represented e16 these reference radiographs are described in 1. 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.
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. Reference radiographs represented by these steel casting standards may be used, as agreed upon in a atsm supplier agreement, for radiation energy levels, thicknesses or both outside the range of these standards when determined applicable for the casting service application.
Severity levels of similar discontinuity categories and energy level range of E or E reference radiographs may alternatively be used, as determined appropriate for the casting service application, if so agreed upon in a purchaser supplier agreement see Section 1 and 5.
Even though the silicon iron material retains gas porosity, if the anodes are produced to level 3 then there are additional flaws in the manufacturing procedure which are quantifiable and ideally should not be accepted.
Please first log in with a verified email before subscribing to alerts. This means that every time you visit this website you will need to enable or disable cookies again. Section 9 addresses purchaser supplier requisites where weld repairs to castings may be required. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Reference radiographs for other steel casting thicknesses may be found in Reference Radiograph standards E and E If an accelerated corrosion test was carried out on the whole anode, then this area would be consumed at a faster rate than the remainder of the anode.
Called Type 2 in previous revisions 3 Cc — sponge shrinkage — Severity levels 1 through 5. We have previously been the only manufacturer exclusively supplying tubular anodes to the Durichlor 51 Anode company. This chart shows a comparison in sizes between Specialist Castings Anodes and other common anode sizes.
Reference Radiograph standards E and E provide some overlap of severity levels for similar discontinuity categories within the same energy level range see 4. Each volume consists of three categories of graded discontinuities in increasing severity levels, and three categories of ungraded discontinuities. Reference Radiograph standards E and E provide some overlap of severity levels for similar discontinuity categories within the same energy level range see 4.
These connections can be made in the factory or in the eld.