Specification Brand : PFS BulletPoint : Purity: 99.995% BulletPoint1 : One Disc, measures 25 mm x 1.5 mm BulletPoint2 : Precision machined from high purity metal, ground surfaces, and laser etched labels BulletPoint3 : Approximate weight 6.3g BulletPoint4 : Approximate weight 4.81g BulletPoint5 : Good for weight or hardening up your alloys ExternallyAssignedProductIdentifier1 : 0791115438795 ExternallyAssignedProductIdentifier2 : 791115438795 FormFactor : Round ItemForm : Rod ItemName : Niobium (Nb) 25mm Metal Disc 99.95% Pure for Collection or Experiments ItemPackageDimensions_Height : 8.1026 centimeters ItemPackageDimensions_Length : 3.9116 centimeters ItemPackageDimensions_Width : 3.9878 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : specialty-non-ferrous-metals-raw-materials Manufacturer : Prince Frederick Store Material : Metal Material1 : Lead Material2 : Antimony MetalType : Silver ModelNumber : PFS-NB25-DISC NumberOfItems : 1 PartNumber : PFS-NB25-DISC ProductDescription : Niobium, formerly known as columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, crystalline, ductile transition metal, often found in the minerals pyrochlore and columbite, hence the former name "columbium". Niobium is used in various superconducting materials. These superconducting alloys, also containing titanium and tin, are widely used in the superconducting magnets of MRI scanners. Other applications of niobium include welding, nuclear industries, electronics, optics, numismatics, and jewelry. In the last two applications, the low toxicity and iridescence produced by anodization are highly desired properties. -Wikipedia Quarter not included ProductSiteLaunchDate : 2018-09-03T00:00:00.000Z Size : 24.26mm x 1.75mm SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1