Niob · Seamless ASTM B393 — Chemical and reactor piping

Niobium Tubes

Seamless niobium tubes (Nb ≥ 99.9%) per ASTM B393. Used as process piping for strong acids (HNO₃, HCl) where tantalum is too expensive, and as cooling tubes for nuclear fusion blankets. Walls from 0.5 mm.

• Seamless per ASTM B393 (cold-drawn)
• OD 3-50 mm; wall 0.5-5 mm; lengths up to 1,500 mm
• Resistant to HNO3 at all concentrations and to dilute HCl
• Low neutron capture cross-section, suitable for nuclear applications
• Chemical composition certificates with analysis of arsenic, phosphorus and other elements