Accession Number:

ADA090007

Title:

Comparison of Mechanical Properties of 105mm M68 Gun Tube Forgings

Descriptive Note:

Memorandum rept.

Corporate Author:

ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER WATERVLIET NY LARGE CALIBER WEAPON SYSTEMS LAB

Personal Author(s):

• Powis, H. J.

Report Date:

1980-05-01

Pagination or Media Count:

29.0

Abstract:

105mm M68 gun tube forgings are supplied at present by two vendors and the Watervliet Arsenal rotary system. A study was initiated to compare mechanical properties of the most recent vendor-supplied tubes with those supplied by them in the past. The vendor-supplied tubes were produced from vacuum degassed steel, whereas the rotary forged tubes were produced from electroslag remelted ESR steel. The study shows that the quality of tubes, in terms of mechanical properties varies between vendors, but that the quality from each vendor has remained fairly constant. The study also shows that the tubes produced from ESR are equivalent to those produced by conventional forging and heat treating techniques.

Descriptors:

• *GUN BARRELS
• *MECHANICAL PROPERTIES
• ARMY PROCUREMENT
• CHARPY IMPACT TESTS
• COMPARISON
• ELECTROSLAG WELDING
• FORGING
• HEAT TREATMENT
• ORDNANCE STEEL
• PRODUCTION
• YIELD STRENGTH

Subject Categories:

• Metallurgy and Metallography
• Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE