Were this universally the case, you would expect vehicles with balistic protection to fall apart under fire. It is more difficult to weld and form than Steel, but actually very similar to Hardox of the same hardness / grade.

It could be that the people you mention procured a less suitable grade. However, without knowledge of the grade, it's impossible to make any useful comparison between Hardox & Armox.

Like all materials, you have to pick a grade that is suitable for the application and follow the recommendations for welding / forming.

Armox can be folded and will bend - but it is both tough and hard so will transmit shocks unless this is mitigated in the design.

Cost wise for the raw material it's similar to Hardox. However it's harder to find so you may pay more due to supply/demand.

Perhaps it is a little too specialist in this market - but balistic protection is what it was developed for.

"A good modern FW can slide through 20mm+ of HDPE with no problem" - It's funny, that's what everyone said back then too. I remain to be convinced - and you may get your chance to convince me!

I agree HDPE is mosly unsuitable for the structure above, but not universally so, depending on the design.

Si