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Specialty Metals That Make Our WorldTM
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  • Zircadyne 702/705
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    Niobium:
  • Niobium
  • - C-103
  • Machining & Forming Operations
    Titanium:
  • Titanium Alloys
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  • Titanium Bar & Wire
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  • Silicon Tetrachloride
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  • Special Alloy Fabrication

 
NIOBIUM-TITANIUM ALLOY

1. Scope

1.1 Scope. This specification establishes the requirements for niobium alloy bar and rod containing 45/48 wt. % titanium for use in manufacturing wire for superconducting magnets.

2. Material

2.1 Ingots shall be at a minimum double arc melted.

2.2 Hardness testing will be performed on all ingots. Maximum average hardness shall be 170 BHN.

2.3 Top and bottom samples shall be taken from each ingot and analyzed to conform with Table I.

2.4 High homogeneity (Hi-Ho) material is available in Grade 1 or 2.
TABLE I Ð INGOT CHEMISTRY
Grade I Grade ll
C 200 200
0 1000 1000
N 150 150
H 35 35
Fe 200 200
Si 100 100
Ta 1000 2500
Cr 60 60
Ni 100 100
Cu 100 100
Al 125 125
Ti 45/48% Specified Value ±1.5% 45/48% Specified Value ±1.5%
Nb Balance Balance

(Max. ppm unless otherwise noted.)
2.6 TABLE II - PRODUCT CHEMISTRY FINAL of VACUUM ANNEALED MATERIAL ONLY
C 200
0 1000
N 150
H 20

(Max. ppm unless otherwise noted)

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INDEX  •  CORROSION RESISTANCE PROPERTIES  •  FABRICATION   
NIOBIUM PRODUCTS   •  SPECIFICATIONS of NIOBIUM   
NIOBIUM ELECTRONICS APPLICATIONS