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Anybody knows the specs of S7 steel?
- Thread starter Ralf
- Start date
- Joined
- Oct 7, 1998
- Messages
- 1,838
Ralf, my friend; here are some web sites I have found particularly useful for information on metallurgy.
First, the Crucible Particle Metallurgy web site, generally the best place to find specific info on any steel:
http://www.crucibleservice.com/crumain2.htm
Click first on 'Heat Treating and Fabrication of Tool Steels' it gives you a general overview of alloys, and the effects of elements added to them. S7 is specifically discussed here.
Next, click on 'ToolSteels', and then 'Selecting High Performance Tool Steels.' S7 is again discussed and compared with other steels.
Click on 'Cold Forming', and you will find
the exact composition of S7, and S7XL (premium grade)
S7 is a Cr-Mo alloy, with the following composition:
C 0.55, Mg 0.7, Si 0.35, Cr 3.25, Mo 1.4, V 0.25.
S7, a double purified steel, has the same composion as S7, but the Si, Mg, and V are omitted.
Other useful sites are: a comprehensive dictionary of metallurgical terms, at:
http://www.metal-mart.com/dictlist.htm
The mother of all metallurgical sites:
http://www.mlc.lib.mi.us/~stewarca/metallurgy.html While here, be sure and download the ASM free lesson, 'Metallurgy for the Non-Metallurgist.' It is well worth reading.
Joe Talmadge's excellent FAQ discussion of knife steels is here:
http://www.mlc.lib.mi.us/~stewarca/metallurgy.html
Kevin McClung's excellent review of steel selection, edge geometry and other useful topics can be found here:
http://www.northlink.com/~maddog/pages/articles.htm
If you wish steel composition charts, check out A G Russell's site:
http://www.agrussell.com/steel/
Or the more comprehensive charts at Spyderco:
http://www.spyderco.com/spyderco_products.html
I realize that I have gone beyond the scope of your question, but have been intending to put these websites up for the members for a while. They took me quite a while to find in some cases. Happy Holidays, and knife making, Ralph. Walt
First, the Crucible Particle Metallurgy web site, generally the best place to find specific info on any steel:
http://www.crucibleservice.com/crumain2.htm
Click first on 'Heat Treating and Fabrication of Tool Steels' it gives you a general overview of alloys, and the effects of elements added to them. S7 is specifically discussed here.
Next, click on 'ToolSteels', and then 'Selecting High Performance Tool Steels.' S7 is again discussed and compared with other steels.
Click on 'Cold Forming', and you will find
the exact composition of S7, and S7XL (premium grade)
S7 is a Cr-Mo alloy, with the following composition:
C 0.55, Mg 0.7, Si 0.35, Cr 3.25, Mo 1.4, V 0.25.
S7, a double purified steel, has the same composion as S7, but the Si, Mg, and V are omitted.
Other useful sites are: a comprehensive dictionary of metallurgical terms, at:
http://www.metal-mart.com/dictlist.htm
The mother of all metallurgical sites:
http://www.mlc.lib.mi.us/~stewarca/metallurgy.html While here, be sure and download the ASM free lesson, 'Metallurgy for the Non-Metallurgist.' It is well worth reading.
Joe Talmadge's excellent FAQ discussion of knife steels is here:
http://www.mlc.lib.mi.us/~stewarca/metallurgy.html
Kevin McClung's excellent review of steel selection, edge geometry and other useful topics can be found here:
http://www.northlink.com/~maddog/pages/articles.htm
If you wish steel composition charts, check out A G Russell's site:
http://www.agrussell.com/steel/
Or the more comprehensive charts at Spyderco:
http://www.spyderco.com/spyderco_products.html
I realize that I have gone beyond the scope of your question, but have been intending to put these websites up for the members for a while. They took me quite a while to find in some cases. Happy Holidays, and knife making, Ralph. Walt