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

Niobium metal melting point is 2468˚C, the density of 8.6 g/cm3. Niobium also has the characteristics of corrosion resistance, high temperature resistance and malleability. Its products are 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 the total processing rate is 6% ~ 8% of slab thickness. In order to ensure the surface quality of sheet metal, the blank of forging forming must be not defective, polluted, and the roller surface must be clean.

  • Niobium alloy sheet, niobium strip and niobium foil processing technology and heat treatment specification is as follows: electron beam melting of Nb ingot — at room temperature (or < 400 degree Celsius) forging — annealing — roughing — annealing — strip rolling — annealing — foil rolling — heat treatment.

Niobium Alloys Sheet & Foil & Strip Grade, Standard and Application
Products Grade Standard Application
Nb1Zr R04261 Type ASTM B 393 Electronic Industry, Superconductivity
Nb R04210 Type ASTM B 393 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 for industrial, electric light source, heating and heat shield electric vacuum equipment. High purity niobium sheet is used as the cavity material of the superconducting linear collider, which is of high purity and uniformity. The largest amount of niobium sheet and strip is the steel enterprise, mainly used in cold rolling acid washing and immersion tank, jet pump and its system pipe fittings.
Niobium sheet application

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