| Author |
Message |
|
Popa Mihai
Location: Romania Joined: 19 Jan 2017
Posts: 6
|
 Posted: Sun 12 Feb, 2017 2:25 pm Post subject: ST3 Steel Help |
 |
|
Hello,
I write this post in need of help from metallurgy experienced people.
According to the rules of BOTN (Battle of the Nations)
''The fighter’s head must be protected with a metal helmet, the safety features and specifications of which comply with the same parameters of a helmet made of steel ST3, 2mm thick.''
Can someone explain to me what does ST3 means? Is that mild steel, hardened, spring ? I honestly do not know how to easily search for such a type of steel in my quest to make a 15th century BOTN set.
Any help would be supremely appreciated.
Thank you,
Mihai
Popa
|
|
   |
 |
Boris Bedrosov
Industry Professional
Location: Bourgas, Bulgaria Joined: 06 Nov 2005
Posts: 700
|
| Posted: Sun 12 Feb, 2017 3:19 pm Post subject: |
|
|
Hi there!
St3, St30, Stal3 (or Stal30) are different designations of one particular type of steel - 0.30% Carbon content and no additional elements, enhancing the performance.
The official GOST (GOsudarstveniy STandard - the Soviet/Russian State Standard) designation of the steel is Stal Marki 30 (Steel Mark 30)
It's not a spring-steel, the quality and berformance are better than mild steel (for example - I usually use it for shield bosses); cannot be heat-treated, but probably could be case-hardened.
If you know Russian - this http://metallicheckiy-portal.ru/marki_metallov/stk/30 could be good starting point. There you could find some European and non-European equivalents.
"Everyone who has the right to wear a long sword, has to remember that his sword is his soul,
and he has to separate from it when he separates from his life"
Tokugawa Ieyasu
Find my works on Facebook:
Boris Bedrosov's Armoury
|
|
 |
|
|
Lafayette C Curtis
|
| Posted: Mon 17 Apr, 2017 9:09 am Post subject: |
|
|
|
If it has no alloying elements apart from carbon, the closest American equivalent would be something like AISI 1030.
|
|
|
|
|
|
Sarah O
Location: BC Canada Joined: 29 Apr 2017
Posts: 6
|
| Posted: Tue 02 May, 2017 10:41 am Post subject: |
|
|
Hello, I have a question myself, if it's st3 does that mean that it can ONLY be made in 30% carbon or is it a minimum? Can it go higher?
Also the author might find the app "Heat Treaters Guide Companion" is a MOST excellent app that has pretty much every metal you can think of and very useful information on it! It's free and was made for metalsmiths to use as a quick reference guide. Super handy!
|
|
|
|
|
|
|
This is a standard topic