View Historical Standards for B393:

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Document Designation and Title Year Select Item(s) B393 Standard Specification for Niobium and Niobium Alloy Strip, Sheet, and Plate 09 B393 Standard Specification for Niobium and Niobium Alloy Strip, Sheet, and Plate 05 B393 Standard Specification for Niobium and Niobium Alloy Strip, Sheet, and Plate 03 B393 Standard Specification for Niobium and Niobium Alloy Strip, Sheet, and Plate 99