Accession Number:

AD0272101

Title:

MATERIAL, METALLIC, ROOM AND ELEVATED TEMPERATURE MECHANICAL PROPERTIES FOR HK31A-T5 EXTRUDED SECTIONS, DETERMINATION OF

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s):

• WHITING,R.C.

Report Date:

1962-01-16

Pagination or Media Count:

1.0

Abstract:

An investigation was made to determine the mechanical properties of extruded HK31A-T5 material Mg-Th-Zr alloy. Two extrusions, one of 15 sq in. and one of about 0.3 sq in. cross sectional area were tested. Results of the room temperature tests, conducted on these extrusions and corresponding preliminary values established by Structures Bulletin-B 46 are tabulated. Exposure to 350 F for 100 hr did not affect the properties significantly. Exposure at 475 F for 100 hr lowered the room temperature tensile and compression properties between 5 and 8. The 600 F exposure temperature reduced these properties 6 to 22. In general, all the tests results were higher than the minimum values given in Structures Bulletin-B-46. The only exceptions were values for Youngs modulus on both extrusions and the bearing ultimate strength and percentage elongation in the transverse direction of the 15 sq in. extrusion which were slightly lower. Author

Descriptors:

• *MAGNESIUM ALLOYS
• ANGLE BARS
• EXTRUSION
• MECHANICAL PROPERTIES
• SHEAR STRESSES
• STRESSES
• TENSILE PROPERTIES
• THORIUM ALLOYS
• ZIRCONIUM ALLOYS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE