Niobium Sheet & Plate

  • Niobium sheet
  • Niobium plate

Product Details

Niobium Sheet & Niobium Plate Standard

All niobium and niobium alloys sheet & plate products follow standard ASTM B393, such as pure niobium sheet & plate (R04200, R04210), Nb1Zr (R04251 R04261), Nb10Zr , C-103, Cb-752, C-129Y, FS-85 , Nb-50Ti sheet & plate and so on.

Niobium Sheet & Niobium Plate Introduction

The melting point of niobium is 2468˚C, and the density of it is 8.6 g/cm3. With the characteristics of corrosion resistance, high temperature resistance and malleability, niobium is widely used in electronics industry, steel industry, chemical industry, optics, gemstone manufacturing, superconducting technology, aerospace technology and other fields. Niobium sheet and plate is the most common form of Nb product.

Niobium Sheet & Niobium Plate Production Technology

  • Niobium sheet & plate is usually made by cold rolling. The total processing rate is controlled at 80% ~ 90% of slab thickness, and each processing rate is controlled at 6% ~ 8% of slab thickness. In order to ensure the surface quality of sheet metal, the blank of forging forming should be free of defect, unpolluted, and the roller surface should be clean.

  • The flow of niobium alloy sheet, niobium strip and niobium foil processing and heat treatment is: electron beam melting of Nb ingot — forging at room temperature (or < 400℃) — annealing — roughing — annealing — strip rolling — annealing — foil rolling — heat treatment.

  • Pure niobium sheet, niobium strip and niobium foil, niobium-1%zirconium sheet strip and foil, along with other niobium alloys sheet, strip and foil are all manufactured according to the same technology.

Niobium Alloys Sheet & Foil & Strip Grade, Standard and Application
Products Grade Standard Application
Nb1Zr R04261 Type ASTM B393 Electronic Industry, Superconductivity
Nb R04210 Type ASTM B393 Electronic Industry, Superconductivity Sputtering, Target 
Niobium and Niobium Alloys Sheet Chemical Composition
Element Type 1
(Reactor Grade Unalloyed Niobium)
R04200		 Type 2
(Commercial Grade Unalloyed Niobium)
R04210		 Type 3
(Reactor Grade Niobium-1%Zirconium)
R04251		 Type 4
(Commercial Grade Niobium-1%Zirconium)
R04261
Max Weight % (Except Where Otherwise Specified)
C 0.01 0.01 0.01 0.01
N 0.01 0.01 0.01 0.01
O 0.015 0.025 0.015 0.025
H 0.0015 0.0015 0.0015 0.0015
Zr 0.02 0.02 0.8 - 1.2 0.8 - 1.2
Ta 0.1 0.3 0.1 0.5
Fe 0.005 0.01 0.005 0.01
Si 0.005 0.005 0.005 0.005
W 0.03 0.05 0.03 0.05
Ni 0.005 0.005 0.005 0.005
Mo 0.010 0.020 0.010 0.050
Hf 0.02 0.02 0.02 0.02
Ti 0.02 0.03 0.02 0.03
Niobium and Niobium Alloys Sheet Mechanical Property
Grade Ultimate Tensile Strength,
min,psi(MPa)		 Yield Strength(0.2 % offset),
min, psi (MPa)		 Elongation in 1-in. (25.4-mm)
gage length, min, %
0.010 in. or Greater Less Than 0.010 in.
Types 1 and 2 18 000 (125) 10 500 (73) 20 15
Types 3 and 4 28 000 (195) 18 000 (125) 20 15
Niobium and Niobium Alloys Sheet & Strip & Foil Dimension and Tolerance (mm)
Thickness Thickness Tolerance Width Width
Tolerance		 Length Length
Tolerance
Grade 1 Grade 2
0.025 - 0.1 ± 0.005 ± 0.008 50 - 150 ± 2.0 100 - 20 000 ± 2.0
0.1 - 0.2 ± 0.015 ± 0.02 50 - 240 ± 2.0 100 - 20 000 ± 2.0
> 0.2 - 0.3 ± 0.02 ± 0.03 50 - 650 ± 2.0 100 - 6 000 ± 2.0
> 0.3 - 0.5 ± 0.03 ± 0.04 50 - 650 ± 2.0 100 - 6 000 ± 2.0
> 0.5 - 0.8 ± 0.04 ± 0.06 50 - 650 ± 2.0 100 - 6 000 ± 2.0
> 0.8 - 1.0 ± 0.06 ± 0.08 50 - 650 ± 2.0 100 - 6 000 ± 2.0
> 1.0 - 1.5 ± 0.08 ± 0.12 50 - 650 ± 3.0 100 - 6 000 ± 4.0
> 1.5 - 2.0 ± 0.12 ± 0.16 50 - 650 ± 3.0 100 - 4 000 ± 4.0
> 2.0 - 3.0 ± 0.16 ± 0.18 50 - 650 ± 5.0 100 - 4 000 ± 5.0
> 3.0 - 4.0 ± 0.18 ± 0.20 50 - 650 ± 5.0 100 - 3000 ± 5.0
> 4.0 - 6.0 ± 0.20 ± 0.24 50 - 650 ± 5.0 100 - 2000 ± 5.0
The tolerance can be adjusted based on customer's request.

Niobium Sheet & Niobium Plate Application

Niobium sheet & plate is used in industrial, electric light source, heating and heat shield electric vacuum equipment. High purity niobium sheet has higher requirements for purity and uniformity, it can be used as the cavity material of the superconducting linear collider. The biggest demand for niobium sheet and strip is for steel enterprises, and the materials are mainly used in cold rolling acid washing and immersion tank, jet pump and its system pipe fittings.
Niobium sheet application

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