Did you mean determine manganese content in steel by converting it to permanganate and measuring it using visible spectroscopy?
If so it is a standard method in many classical analytical text books. To read a recent paper on the subject see Ramachandra & Rashmi, The Analyst, Volume 124, 1099-1103 (1999)
To determine if shotgun shells are made of steel or lead, you can use a magnet. Steel shotgun shells will be attracted to the magnet, while lead shotgun shells will not.
To determine if shotgun shells are made of lead or steel, you can use a magnet. Steel shotgun shells will be attracted to the magnet, while lead shotgun shells will not be affected by the magnet.
You can determine if something is made of stainless steel by checking for a non-magnetic property, a shiny and reflective surface, and resistance to rust and corrosion.
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Primarily iron, with some carbon and nickel in the alloy. The precise proportions will determine the properties of the resulting steel.
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Go to the sink.
To determine if your shotgun is compatible with shooting steel shot, check the manufacturer's guidelines or markings on the barrel. Look for specific information on steel shot compatibility, such as choke restrictions or barrel material recommendations. Using steel shot in a shotgun not rated for it can damage the barrel or cause safety hazards. If unsure, consult a gunsmith or the manufacturer for guidance.
Test it with a magnet. 1943 steel cents are magnetic. 1944 copper cents are not.
HRB stands for Rockwell Hardness Scale B, which is a measure of the hardness of a material. In steel, HRB is commonly used to determine the hardness of the material, with a higher HRB value indicating a harder material.
The answer to that is not known at this time, but I would be happy to determine the answer and get back to you.