Typically the price of stainless steel is comprised of two components, the base price and the Alloy Adjustment Factor (AAF). 

The base price represents the manufacturers cost for producing the material in a certain size, finish, profile etc. 

The AAF is a charge for the alloys used (e.g. nickel, molybdenum) to produce the specific grade as this varies considerably according to the grade (and specific composition) that the customer has specified. 

AAF charges OSTP

  AAF Tube March 2018 AAF Fittings March 2018
 AAF Tube February 2018  AAF Fittings February 2018
 AAF Tube January 2018  AAF  Fittings January 2018 



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