SAE AMS 4971F:2002 pdf download Titanium Alloy, Bars, Wire, Forgings, and Rings 6Al – 6V – 2Sn Annealed, Heat Treatable
1. SCOPE:
1.1 Form: This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.
1.2 Application: These products have been used typically for parts to be machined in the annealed condition and requiring high strength up to 750 °F (399 °C) after solution and precipitation heat treatment, but usage is not limited to such applications.
1.2.1 Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking; ARP982 recommends practices to minimize such conditions.
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 cancelled 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 15096-0001 or www.sae.org.
AMS 2241 Tolerances, Corrosion and Heat Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire
MAM 2241 Tolerances, Metric, Corrosion and Heat Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire
AMS 2368 Sampling and Testing of Wrought Titanium Raw Materials, Except Forgings and Forging Stock
AMS 2750 Pyrometry
AMS 2808 Identification, Forgings
AMS 2809 Identification, Titanium and Titanium Alloy Wrought Products
AMS 7498 Rings, Flash Welded, Titanium and Titanium Alloys
ARP982 Minimizing Stress-Corrosion Cracking in Wrought Titanium Alloy Products
2.2 ASTM Publications:
Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or
http://www.astm.org.
ASTM E 8 Tension Testing of Metallic Materials
ASTM E 8M Tension Testing of Metallic Materials (Metric)
ASTM E 120 Chemical Analysis of Titanium and Titanium Alloys
ASTM E 1409 Determination of Oxygen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
ASTM E 1447 Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity Method
3. TECHNICAL REQUIREMENTS:
3.1 Composition:
Shall conform to the percentages by weight shown in Table 1; oxygen shall be determined in accordance with ASTM E 1409, hydrogen in accordance with ASTM E 1447, and other elements by wet chemical methods in accordance with ASTM E 120, by spectrochemical methods, or by other analytical methods acceptable to purchaser.
3.1.1 Determination not required for routine acceptance.
3.1.2 No variation over maximum will be permitted for yttrium.
3.1.3 When using ASTM E 1447, sample size may be as large as 0.35 gram.
3.1.4 Check Analysis: Composition variations shall meet the applicable requirements of AMS 2245.
3.2 Melting Practices:
SAE AMS 4971F:2002 pdf download
