SAE AMS 4871F:2000 pdf download

SAE AMS 4871F:2000 pdf download

SAE AMS 4871F:2000 pdf download Aluminum Bronze, Centrifugal and Chill Castings 85Cu – 1 1 Al – 3.6Fe Solution Heat Treated and Tempered
1 . SCOPE:
1 .1 Form: This specification covers an aluminum bronze alloy in the form of centrifugal and chill castings.
1 .2 Application: These castings have been used typically for parts requiring high strength at moderate temperatures, but usage is not limited to such applications.
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 2360 Room Temperature Tensile Properties of Castings
AMS 2630 Ultrasonic Inspection, Product Over 0.5 Inch (1 2.7 mm) Thick
AMS 2694 Repair Welding of Aerospace Castings
AMS 2750 Pyrometry
AMS 2804 Identification, Castings
2.2 ASTM Publications:
Available from ASTM, 1 00 Barr Harbor Drive, West Conshohocken, PA 1 9428-2959.
ASTM E 8 Tension Testing of Metallic Materials
ASTM E 8M Tension Testing of Metallic Materials (Metric)
ASTM E 1 0 Brinell Hardness of Metallic Materials
ASTM E 478 Chemical Analysis of Copper Alloys
ASTM E 1 41 7 Liquid Penetrant Examination
ASTM E 1 742 Radiographic Examination
3.1 Composition:
Shall conform to the percentages by weight shown in Table 1 , determined by wet chemical methods in accordance with ASTM E 478, by spectrochemical methods, or by other analytical methods acceptable to purchaser.
3.1 .1 These composition limits do not preclude the presence of other elements. Limits may be established and analysis required for unnamed elements by agreement between the manufacturer or supplier and purchaser.
3.1 .2 In determining copper minimum, copper may be calculated as copper plus nickel.
3.1 .3 When all the elements in the table are analyzed, the sum shall be 99.5% minimum, but such determination is not required for routine acceptance of each lot.
3.2 Condition:
Solution heat treated and tempered, TF50 temper (See 8.2).
3.3 Casting: Castings shall be produced in lots from metal conforming to 3.1 . Metal remelted from previously analyzed ingot may be poured directly into castings. Molten metal taken from alloying furnaces, with or without additions of foundry operating scrap (gates, sprues, risers, and rejected castings), shall not be poured into castings unless first converted to ingot, analyzed, and remelted or unless the composition of a sample taken after the last addition to the melt conforms to 3.1 .
3.3.1 A melt shall be the metal withdrawn from a batch-furnace charge of 2000 pounds (907 kg) or less as melted for pouring castings or, when permitted by purchaser, a melt shall be 4000 pounds (1 81 4 kg) or less of metal withdrawn from one continuous furnace in not more than eight consecutive hours.