Niobium ingots are mainly used as raw material to manufacture plate, tube, strip, rod, wire and other mill products. Characterizing good corrosion-resistance, high ductility, super conductivity and thermal-stable properties, this niobium ingot is widely applied in the chemical processing, semiconductor, medical industry, nuclear energy and high-temperature parts. Niobium sheets and plate are supplied with a cold-rolled and chemically-cleaned surface. Because of their strength and workability, very thin sheets of niobium can be clad to other surfaces, providing superior corrosion protection and cost effectiveness.
Depending on your specifications and needs, all of our niobium sheet and plate are visually inspected for slivers, laminations, excessive roll marks and handling scratches.
Niobium Sheet & Niobium Plate Standard
All niobium and niobium alloys sheet & plate products follow standard ASTM B393, such as pure niobium sheets & 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 sheets & 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.
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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 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 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 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.
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