Vintage Barrel Steel Composition

[Richard Dow]

Drew: Thank you for your post.

[Drew Hause]

More interesting stuff on this Witten steel thread
http://www.doublegunshop.com/forums/...=445562&page=1

It is clear that even by 1880 the various steel producers were able to manufacture high carbon steel, and were working on the optimal manganese, and other alloy, concentrations. By 1890, Witten & Bofors were producing AISI 1044 which is good stuff.
Krupp was having problems getting enough manganese into their carbon steels at that point. Later Fluss Stahl was 1045 so they figured it out.
Whitworth was a medium carbon steel that also didn't quite have enough manganese to fit AISI criteria.

[Drew Hause]

I've revised one of the documents to cover the evolution of iron & steel components in pattern welded barrels
https://docs.google.com/document/d/1...m8-_AQPiA/edit

I have a crolle and a twist barrel segment for composition analysis

Strength & composition of vintage new fangled steel barrels is still here
https://docs.google.com/document/d/1...EK8OtPYVA/edit

[Drew Hause]

Just got the report from a Parker DD 6 Iron "Turkish" segment Dave graciously provided. The tensile strength was quite similar to other crolle specimens at 55,500 psi.
Composition analysis now of 3 crolle and 1 twist specimens confirms the steel component in crolle barrels was low carbon low alloy AISI 1002 – 1005.
Much more detailed articles will follow in DGJ.