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2. Firth Brown Steels - Wikipedia

   en.wikipedia.org/wiki/Firth_Brown_Steels

   As with many inventions there is an element of luck in the finding of a new type of steel and it is just so with stainless steel. [citation needed] With the coming together of Firth and Brown to build a joint research facility (Brown Firth Laboratories) in 1908, a project was instigated to study one of the problems affecting armaments production.

3. SAE 304 stainless steel - Wikipedia

   en.wikipedia.org/wiki/SAE_304_stainless_steel

   304 stainless steel is also used in the architectural field for exterior accents such as water and fire features. It is also a common coil material for vaporizers. Early SpaceX Starships used SAE 301 stainless steel in their construction, [ 8 ] before moving over to SAE 304L for the SN7 test tank [ broken anchor ] [ 9 ] and Starship SN8 in 2020.

4. Austenitic stainless steel - Wikipedia

   en.wikipedia.org/wiki/Austenitic_stainless_steel

   In 200 series stainless steels the structure is obtained by adding manganese and nitrogen, with a small amount of nickel content, making 200 series a cost-effective nickel-chromium austenitic type stainless steel. 300 series stainless steels are the larger subgroup. The most common austenitic stainless steel and most common of all stainless ...

5. Martensitic stainless steel - Wikipedia

   en.wikipedia.org/wiki/Martensitic_stainless_steel

   Chemical composition of a few common martensitic stainless steel grades from EN 10088-1 (2005) standard Chemical composition (main alloying elements) in wt% EN. Steel designation. EN. Number. AISI. Number Number: C: Cr: Mo: Others: Remarks: X12Cr13 1.4006 410 0.12 12.5 — — Base grade, used as stainless engineering steel X20Cr13 1.4021 420 0 ...

6. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   Stainless steel, also known as inox, corrosion-resistant steel (CRES), and rustless steel, is an iron-based alloy containing a minimum level of chromium that is resistant to rusting and corrosion. Stainless steel's resistance to corrosion results from the 10.5%, or more, chromium content which forms a passive film that can protect the material ...

7. Duplex stainless steel - Wikipedia

   en.wikipedia.org/wiki/Duplex_Stainless_Steel

   Duplex steels also have higher strength. For example, a Type 304 stainless steel has a 0.2% proof strength in the region of 280 MPa (41 ksi), a 22%Cr duplex stainless steel a minimum 0.2% proof strength of some 450 MPa (65 ksi) and a superduplex grade a minimum of 550 MPa (80 ksi). [6]