Cookies
We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
ASTM B391-18(2026)e1
Standard Specification for Niobium and Niobium Alloy Ingots (Includes all amendments and changes 11/9/2026).
Translate name
STANDARD published on 1.10.2026
The information about the standard:
Designation standards: ASTM B391-18(2026)e1
Publication date standards: 1.10.2026
SKU: NS-1289922
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM B391-18(2026)e1 :
This specification covers unalloyed and alloyed niobium ingots prepared by vacuum- or plasma-arc melting or electron-beam melting to produce consolidated metal for processing to various mill shapes. The materials covered by this specification are R04200-Type 1 which is a reactor grade unalloyed niobium, R04210-Type 2 which is a commercial grade unalloyed niobium, R04251-Type 3 which is a reactor grade niobium alloy, and R04261-Type 4 which is a commercial grade niobium alloy. The ingot metal for all four types shall be vacuum or plasma arc melted, vacuum electron-beam melted, or any combination of these three methods. The materials shall conform to the required chemical composition for carbon, nitrogen, oxygen, hydrogen, zirconium, tantalum, iron, silicon, tungsten, nickel, molybdenum, hafnium, titanium, boron, aluminum, beryllium, chromium, and cobalt. The ingots shall also conform to the required maximum Brinell hardness.
Keywords:
niobium, niobium alloy ingots,, ICS Number Code 77.150.99 (Other products of non-ferrous metals)
We recommend:
Technical standards updating
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
