Forged 
Casting 
Wrought or Fabricated

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American National Standards Institute (ANSI) 
American Petroleum Institute (API) 
American Society of Mechanical Engineers (ASME) 
American Society Non-Destructive Test (ASNT) 
National Association of Corrosion Engineers (NACE) 
British Standards Institute (BS) 
Canadian Standards Association 
International Organization for Standardization (ISO) 
Manufacturers Standardization Society (SP) 
American Water Works Association (AWWA) 
American Iron and Steel Institute (AISI)

Carbon Steel 
Cast Iron 
Chrome Molybdenum 
Stainless Steel 
(Special Alloys such as Hastelloy B and C, Monel, Nickel and Titanium) 
Duplex Steel 
Aluminum 
Bronze/Brass 
Copper 
Ductile Iron 
Gray Cast Iron 
Nodular Graphite Cast Iron
Material Standards
American Society for Testing and Materials (ASTM)