Felmaran Dimensions, Mass, and Permissible Variations 6. A minimum 3 to 1 reduction of rolled billets or forged sections is required for strand cast products. Where a single usable plate constitutes a heat, any three random ingots may be selected. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. The number and location of samples shall be by agreement between the purchaser and manufacturer. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
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A number in parentheses indicates the year of last reapproval. This standard has been approved for use by agencies of the U. Department of Defense. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard. Referenced Documents2. Ordering Information3.
Materials and Manufacture4. Chemical Composition and Analysis5. Other compositions may be specified. Current edition approved Oct. Published October Originallyapproved in Last previous edition approved in as A — Dimensions, Mass, and Permissible Variations6.
Quality Assurance7. The supplier shall be required to report onthe results of the micro-inclusion rating tests detailed below. Quality tests shown in 7. Tests may be madeon smaller or larger sections by agreement with the purchaser.
A minimum 3 to 1 reduction of rolled billets or forged sectionsis required for strand cast products. One ingot shall be taken at randomfrom the first usable plate poured, one ingot, at random, fromthe usable plate poured nearest to the middle of the heat andone ingot, at random, from the last usable plate poured.
Whentwo usable plates constitute a heat, two of the sample ingotsshall be selected from the second usable plate poured. Where asingle usable plate constitutes a heat, any three random ingotsmay be selected. Other methods of sampling shall be as agreedupon by manufacturer and purchaser. At least one sample shall be taken fromeach strand. The polished face shall be longitudinal to thedirection of rolling. Fields with sizes or numbers of all typesof inclusions intermediate between configurations shown onthe chart shall be classified as the lesser of the rating number.
BIntentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless specifically approved by the purchaser. DOxygen content applies to product analysis and shall be determined in accordance with Test Methods E Two thirds ofall specimens and at least one from each ingot tested, or fromthe first, middle, and last portion of the strands tested, as wellas the average of all specimens, shall not exceed the ratingspecified in Table 2.
Grain Size8. Decarburization and Surface Imperfections Decarburizationshall be measured using the microscopical methods describedin Test Methods E Alltests and inspections shall be made at the place of manufacture,unless otherwise agreed upon.
Certification and Reports Special requirements agreed to at the time ofpurchase must be noted on the certification. When so included, a supplementary requirement shall have the sameforce as if it were in the body of the specification.
Titanium ContentS1. Residual ElementsS2. The number and location ofsamples shall be by agreement between the purchaser andmanufacturer.
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