ASTM B85 PDF
ASTM B85/B85M: Standard Specification for Aluminum-Alloy Die Castings. With respect to mechanical properties, alloys A, and are substantially inter- changeable. Sources: ASTM Ba; Aluminum Association. Sources: ASTM Ba; ASM; SAE; Wabash Alloys. E Registration or REACH ( the European Union]s Directive on Registration, Evaluation, and Authorization o .
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Prices subject to change without notice. In case of astk, the methods of analysis shall be agreed upon between the producer and the purchaser.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. In considering these ratings, it should be noted that all the alloys have sufficiently good characteristics to be accepted by users and producers of die castings. Unless otherwise specified, only aluminum atm conforming to the requirements of Specification B or producer’s foundry scrap shall be used in the remelting furnace from which molten metal is taken for pouring directly into b5.
ASTM-B85 | Standard Specification for Aluminum-Alloy Die Castings | Document Center, Inc.
D Ability of alloy to withstand stresses from contraction while cooling through hot-short or brittle temperature range. Generally aluminum die castings ashm unsuitable for light color anodizing where pleasing appearance is required.
It may not address the mechanical properties, integrity testing, and verification required for highly loaded or safety critical applications. J Ability of the alloy to take and hold an electroplate aatm by present standard methods. Current edition approved April 10, The location of the identi? Different machines and dies continue to be necessary for die castings and test bars. The values given in parentheses are mathematical conversions to SI units which are provided for information only and are not considered standard.
Thirteen of the most commonly die cast alloy compositions are speci? Approved Atm 1 Rewrite of the entire standard.
If, however, the presence of other elements is suspected, or indicated in the course of routine analysis, further analysis shall be made to determine that the total of these other elements are not present in excess of speci? This specification covers aluminum-alloy die castings of all compositions. The castings shall be supplied such that they can be laid out and machined to the final dimensions specified on the blueprints or drawings.
Pure materials, recycled materials, and master alloys and material not conforming to Specification B may be used to make alloys conforming to this specification, provided chemical analysis can be taken and adjusted to conform to the chemical requirements prior to pouring any castings.
These shall be speci? The values stated in each asmt may not be exact equivalents; therefore, each system shall be used independently of the other. I Composite rating based on ease and speed of polishing and quality of? Other methods may be used only when no published ASTM test method is available.
The number and extent of imperfections shall not exceed those speci? Dimensions, Mass, astj Permissible Variations Die castings inspected by this method shall be so marked or handled during the? The castings shall be supplied such that they can be laid out and machined to the final dimensions specified on the blueprints or drawings. If you feel ashm your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
For this reason, it is considered that the only practical method for mechanical property control is proof testing the whole die casting. Ratings given for antisoldering are based on nominal iron compositions of approximately 1.
Unalloyed aluminum contains a minimum of No one alloy is best in all categories. B For purposes of acceptance and rejection, the observed value or calculated value obtained from analysis should be rounded off to the nearest unit in the last right-hand place of? Characteristics of Die Casting Alloys As much of the rejected original material as possible shall be returned to the producer or supplier. The applicable levels shall be as speci?
ASTM International – Standard References for ASTM B85 / B85M – 18e1
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
This abstract is a brief summary of the referenced standard. Die castings are not generally gas or arc welded or brazed.
ASTM B85 Grade SC84B
K Rated on lightness of color, brightness and uniformity of clear anodized coating applied in sulphuric acid electrolyte. When tension or impact tests are made, the tension test specimen shown in Fig. The marking shall consist of raised Arabic numerals, and when applicable capital letters, cast integral. G With respect to mechanical properties, alloys A Hence the rating for asmt characteristic is a relative measure of that attribute compared to the same attribute in another alloy.
Moore Specimen, cycles, ksi MPa 20 18 20 20 Each package shall contain only one type of item unless otherwise agreed upon. Packaging and Package Marking A asstm not in con?