{"id":1431,"productCode":"SPCR2D5T0004N","chemicalCode":"Cr","name":"Chromium metal","customName":null,"otherNames":"","formula":"Cr","purity":99.99,"form":"SP","size":"2 inch dia x 5 mm th.","composition":"","description":"","productionMethod":"HIP","bulkAvailable":null,"productionStatus":"POR","hazmat":null,"status":null,"repackage":false,"priceBase":"","quantityBase":"pcs","bulkAvailability":true,"inProduction":"","factoryCode":"","publicComments":"RD~99%","privateComments":"","chemicalCodeLetters":null,"image":null,"sizeData":"{\"formSize\":\"45\",\"size_form\":[{\"input_value\":\"2\"},{\"select\":{\"value\":\"inch\",\"options\":[{\"value\":\"mm\",\"text\":\"mm\"},{\"value\":\"inch\",\"text\":\"inch\"}]}},{\"text\":\"dia x\"},{\"input_value\":\"5\"},{\"select\":{\"value\":\"mm\",\"options\":[{\"value\":\"mm\",\"text\":\"mm\"},{\"value\":\"inch\",\"text\":\"inch\"}]}},{\"text\":\"th.\"}]}","isLocked":true,"isSearchable":true,"storedLocation":null,"chemicalId":272,"old_chem_id":null,"vendorId":null,"createdAt":"2022-05-24T03:02:16.000Z","updatedAt":"2022-05-24T03:02:16.000Z","deleted":false,"deletedAt":null,"userChangedById":null,"hts":null,"Chemical":{"id":272,"formula":"Cr","productLetters":"CR","name":"Chromium","otherNames":"Chromium metal","cas":"7440-47-3","einecs":"231-157-5","hazmat":"Powder: Class 4.1, UN3089, PG III","data":"","publicComments":"

Chromium is widely used in optical coating materials as an absorbing and masking metal for visible and infrared optical components.1,2 In evaporation and sputter deposition, chromium serves as a stable thin-film material and as an adhesion promoting layer in multilayer optical stacks.2,3 As a refractory metal, chromium exhibits its high thermal stability and oxidation resistance, supporting its use in high temperature coatings and chromium containing compound systems.4 It is also used in advanced manufacturing, primarily as an alloying or coating element in additive manufacturing to enhance wear resistance and surface performance.5

","privateComments":"\"Low purity\" 4N is in batch HIP runs.\r\n\"High purity\" 4N powder is specially procured and hot pressed for single items.","specialNotes":"","specialNotesProduct":false,"sds":"public/sds/Cr.pdf","smiles":"","inchi":"","inchiKey":"","molecularWeight":"","iupac":"","eccn":"","hts":"","createdAt":"2023-08-14T15:23:19.000Z","updatedAt":"2026-01-19T20:48:19.896Z","deleted":false,"deletedAt":null,"userChangedById":1,"customContent":"","displayFormula":"","bottomText":"

References:

  1. Macleod, H. A., Thin-Film Optical Filters, 4th ed., CRC Press, 2010. 

  2. Pulker, H. K., Coatings on Glass, Elsevier, 1999.

  3. Ohring, M., Materials Science of Thin Films, 2nd ed., Academic Press, 2002.

  4. ASM Handbook, Vol. 2: Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM International. 

  5. DebRoy, T. et al., “Additive manufacturing of metallic components – Process, structure and properties,” Progress in Materials Science, 92 (2018) 112–224. 
     

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