Fast heating tube test of MCX-6100 - EMTAP 41 Test

During STANAG 4170 qualification of the MCX-6100 composition the EMTAP 41 fast heating tube test has been carried out. Two of the seven tested tubes produced three and two fragments respectively during reaction and have thereby a deflagration or degree 2 reaction. Five tubes gave only one fragment by a burn or degree 1 reaction. However, these five tubes may be divided into two groups. Four tubes have one crack in the center of the body. They reacted after 120+11 seconds with an outer surface temperature of 364+18oC for three of the tubes. For the fourth tube the surface temperature was 481.5oC. The fifth tube is still in one piece, but has several cracks, and one part of the body is close to being a fragment. This tube reacted after 151 seconds with a surface temperature of 388oC. The tube giving three fragments reacted after 383 seconds with a tube surface temperature of 193.4oC. This deviation may be explained from wind influence during testing. Achieved results with degree 1 (burn) for five tubes and degree 2 (deflagration) for two tubes are all mild reactions. One can therefore expect that munitions filled with the MCX-6100 composition will have potential to fulfill the IM requirements when the munitions meet a fast heating threat.