Mortar Build Question - what type of metal?

[tombstone270]

I have look in to many steel ...most are above the bass or bonz....so it is a bad question to ask which steel would be compareable to the naval bonz or would be suiteable for the mortar...

tomb

[tombstone270]

 

[barefiel76]

So I have been doing homework for a howitzer 4.5"OD x 30" long solid 1018 bar. The price from Speedy Metal with me picking it up is about $189 including tax. If they deliver it to my house add $90. For brass or bronze the same size piece is around $1478 then add tax and shipping.

If you are weighing the cost of material vs the desire to have the size and look of what you really want steel might be a way to go. I have also talked to a couple of metal workers who have said that the 1018 hot roll is a material with a solid reputation. No pun intended.

[tombstone270]

tomb

[RocklockI]

Tomb , am I missing something or are you ? 1080 was recomended against being used by CW .

Your call, Gary

[Cat Whisperer]

Indeed 1080 has a good rep....
tomb

Good reputation for ARCHITECTURAL applications.  Agree.  Tremendous strength - even some well recommended uses in agricultural applications that I ran across earlier this evening.  Reading through Machinery's Handbook gives a whole lot of other applications for high carbon steels as well - like springs.  It's value is for it's hardness and strength.  HARDNESS is not what one wants for a cannon.

Cannons are different.  But I've not found anything on resistance to cracking due to IMPACT.

There are those on this board (engineers) that have been concerned about too much carbon going from 1018 even to 1024 (much less 1080) for that reason.  (Bore liner on Brass cannon.)

[dominick]

Tomb,  I wonder how that stuff machines.  That's alot of carbon .80%.  I wouldn't weld on it.  1018 would be a better choice.   Dom

[tombstone270]

Indeed I was missing something.....thanks for putting me on the right track again.....I was confused about the 1080 and 1018....I have read so many pages that things have become a blurr....


after reviewing my notes....1018 was what I should have asked about....


thanks again for your help..


tomb

[Cat Whisperer]

GOOD!

Minor errors like that happen all the time.  Most of us have a story or three .... 

[Victor3]

Minor errors like that happen all the time.  Most of us have a story or three .... 

 Yup. Like the time I was about to bail out of an airplane. Over the roar of the engines, I could have sworn the guy said "everyone put on your pairofshoes!"