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2. Alloy 20 - Wikipedia

   en.wikipedia.org/wiki/Alloy_20

   Alloy 20 is an austenitic stainless steel containing less than 50% iron developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical , petrochemical , power generation , and plastics industries.

3. List of named alloys - Wikipedia

   en.wikipedia.org/wiki/List_of_named_alloys

   Stainless steel (chromium, nickel) AL-6XN; Alloy 20; Celestrium; Marine grade stainless; Martensitic stainless steel; Alloy 28 or Sanicro 28 (nickel, chromium) Surgical stainless steel (chromium, molybdenum, nickel) Zeron 100 (chromium, nickel, molybdenum) Tool steel (tungsten or manganese) Silver steel (US:Drill rod) (manganese, chromium, silicon)

4. Austenitic stainless steel - Wikipedia

   en.wikipedia.org/wiki/Austenitic_stainless_steel

   Alloy 20 (Carpenter 20) is an austenitic stainless steel possessing excellent resistance to hot sulfuric acid and many other aggressive environments which would readily attack type 316 stainless. This alloy exhibits superior resistance to stress-corrosion cracking in boiling 20–40% sulfuric acid. Alloy 20 has excellent mechanical properties ...

5. List of blade materials - Wikipedia

   en.wikipedia.org/wiki/List_of_blade_materials

   They are more homogeneous than stainless than other high alloy steels, having carbide only in very small inclusions in the iron. The bulk material is a little bit harder than standard stainless steel such as St-304 (high-end alloys excluded), allowing them to hold a sharper and more acute edge without bending over in contact with hard materials.

6. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   Similar developments were taking place in the United States, where Christian Dantsizen of General Electric [33] and Frederick Becket (1875–1942) at Union Carbide were industrializing ferritic stainless steel. [34] In 1912, Elwood Haynes applied for a US patent on a martensitic stainless steel alloy, which was not granted until 1919. [35]

7. Unified numbering system - Wikipedia

   en.wikipedia.org/wiki/Unified_numbering_system

   The Unified Numbering System for Metals and Alloys (UNS) is an alloy designation system widely accepted in North America. Each UNS number relates to a specific metal or alloy and defines its specific chemical composition, or in some cases a specific mechanical or physical property. A UNS number alone does not constitute a full material ...