SAE AMS 7912A:2001 pdf download

SAE AMS 7912A:2001 pdf download Aluminum-Beryllium Alloy, Extrusions 38Al – 62Be Annealed
1 . SCOPE:
1 .1 Form:
This specification covers an aluminum-beryllium alloy in the form of bars, rods, tubing, and shapes consolidated from powder by extrusion.
1 .2 Application:
These extrusions have been used typically for parts requiring high thermal conductivity, low density,and high modulus of elasticity, but usage is not limited to such applications.
1 .3 Safety-Hazardous Materials:
While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.
1 .3.1 WARNING: Beryllium Alloy: Inhalation of dust or fumes may cause serious chronic lung disease. Potential cancer hazard based principally on animal tests.
2. APPLICABLE DOCUMENTS: The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been canceled and no superseding document has been specified, the last published issue of that document shall apply.
2.1 SAE Publications:
Available from SAE, 400 Commonwealth Drive, Warrendale, PA 1 5096-0001 .
AMS 2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steel and Corrosion and Heat Resistant Steels and Alloys
2.2 ASTM Publications:
Available from ASTM, 1 00 Barr Harbor Drive, West Conshohocken, PA 1 9428-2959.
ASTM B 31 1 Density Determination for Powder Metallurgy (P/M) Materials Containing Less Than Two Percent Porosity
ASTM E 8 Tension Testing of Metallic Materials
ASTM E 8M Tension Testing of Metallic Materials (Metric)
2.3 MPIF Publications:
Available from Metal Powder Industries Federation, 1 05 College Road East, Princeton, NJ 08540.
MPIF Standard 01 Method for Sampling Finished Lots of Metal Powders
2.4 ANSI Publications:
Available from ANSI, 1 1 West 42nd Street, New York, NY 1 0036-8002.
ANSI Y1 4.5M Dimensioning and Tolerancing
3. TECHNICAL REQUIREMENTS:
3.1 Composition:
Shall conform to the percentages by weight shown in Table 1 . Beryllium shall be determined by wet analysis (titration), oxygen by inert gas fusion, and other elements by spectrochemical methods or other analytical methods acceptable to purchaser.
3.1 .1 Aluminum may be reported as the difference between the other named elements and 1 00%, or as the result of direct analysis.
3.1 .2 Determination not required for routine analysis.
3.2 Condition:
As extruded and annealed.
3.3 Heat Treatment:
Product shall be annealed by heating to 1 1 00 °F ± 45 (593 °C ± 25), holding at heat for 24 hours ± 2, and cooling to room temperature.
3.4 Properties:
The product shall conform to the following requirements:
3.4.1 Tensile Properties: Shall be as shown in Table 2, determined in accordance with ASTM E 8 or ASTM E 8M.