Ferromanganese (FeMn) is an alloy mostly used in steelmaking and foundry activities. Some 30 % of the manganese used today in steelmaking is still used for its properties as a deoxidant and a sulphide former. In this last case it combines with sulphur avoiding the formation of iron sulphides, which sulphides are low melting point phases which become liquid at hot rolling temperatures and which, consequently, generate surface cracking. The other 70 % of the manganese is used purely as an alloying element. Steels usually contain from 0,2 % to 2 %Mn depending on grades as Mn is the cheapest alloying element among those which enhance some key mechanical properties like strength and toughness. In the specific case of stainless steel, it can substitute expensive nickel in some austenitic grades called 200 series
For a complete listing of ferrosilicon specifications, see ASTM A99.
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McCreath Laboratories will send trained, experienced technicians to take a represented sample for you. Whether in bulk or containers, our technicians have the training, tools and experience to collect a representative sample, ensuring that all subsequent laboratory testing is accurate and reliable. With our mobile crushing units, ferromanganese in lump form can be partially processed on-site per the ISO and ASTM standards, increasing efficiency and reducing the amount of material taken off-site.
Expert Analysis With McCreath Labs
McCreath Laboratories will employ both classical and advanced in-house techniques in the analysis of ferromanganese. The techniques have been verified through the use of certified reference materials and some are adopted directly from ASTM or ISO standards. A typical ferrochrome analysis would be done as follows:
|Mn||Titration||Metrohm Titrando||ASTM E248|
|C||Combustion||LECO CS 744||ASTM E1019|
|S||Combustion||LECO CS 744||ASTM E1019|
|P||ICP||Thermo ICAP||In house|
|N||Inert Gas Fusion||LECO CS 744||ASTM E1019|
|As||ICP||Thermo ICAP||In house|
|Sn||ICP||Thermo ICAP||In house|
|Pb||ICP||Thermo ICAP||In house|
|Cr||ICP||Thermo ICAP||In house|
For more information on the analysis of ferromanganese, contact us.