Chemistry                                   %

Designation

Chief component

Impurities    maxmium

Nb

Fe

Si

Ni

W

Mo

Ti

Ta

Hf

Zr

O

H

N

C

R04200

Remainder

0.005

0.005

0.005

0.03

0.010

0.02

0.1

0.02

0.02

0.015

0.0015

0.01

0.01

R04210

Remainder

0.01

0.005

0.005

0.05

0.020

0.03

0.3

0.02

0.02

0.025

0.0015

0.01

0.01

R04251

Remainder

0.005

0.005

0.005

0.03

0.010

0.02

0.1

0.02

0.8~1.2

0.015

0.0015

0.01

0.01

R04261

Remainder

0.01

0.005

0.005

0.05

0.050

0.03

0.5

0.02

0.8~1.2

0.025

0.0015

0.01

0.01

R0****

Remainder

0.005

0.005

0.003

0.007

A

0.005

0.1

A

0.010

0.0040

0.0005

0.0030

0.0030

Niobium metal plates, sheets, wire, rod, tubing

- Sputtering targets.
- Cathode protection systems for large steel structures.
- Chemical processing equipment.

Corrosion resistance, formation of oxide and nitride films. Increase in high temperature resistance and corrosion resistance, oxidation resistance, improved creep resistance, reduced erosion at high temperatures.

Niobium-titanium alloy
Niobium-tin alloy

Superconducting magnetic coils in magnetic resonance imagery (MRI), magnetoencephalography, magnetic levitation transport systems, particle physics experiments.

Electrical resistance of alloy wire drops to virtually zero at or below temperature of liquid helium (-268.8°C).

Niobium-1%zirconium alloy

- Sodium vapor lamps
- Chemical processing equipment

Corrosion resistance, fixation of oxygen, resistance to embrittlement.

Vacuum-grade ferro-niobium and nickel-niobium

Superalloy additions for turbine blade applications in jet engines and land-based turbines. Inconel family of alloys, superalloys.

Increase in high temperature resistance and corrosion resistance, oxidation resistance, improved creep resistance, reduced erosion at high temperatures.

Nb alloy

Grade

TEMP.

TS/ MPa

YS／MPa

A／％

Nb-10W-10Hf

Cb-132

ROOM
1093
1371
1645

607．1
332
179
73．4

49l_5
223．8
158．5
72．7

26
27
>67
62

Nb-10W-10Hf-0．1Y

Cb-129Y

ROOM
1093
1371
1645

583
274．4
150．9
76．4

466．5
205．8
150．9
72．0

25
45
75
78

Nb-10W-10Ta

Scb-291

ROOM

1316

1645

1871

425.3

144

68.4

44.3

294

102.9

48

32.9

32

25

23

25

Nb-10W-28Ta-1Zr

FS-85

ROOM
1421

1645

1927

596.8

100.8

73.4

42.5

480.2

78

71.3

41.7

25

28.8

78.1

80

Nb-15W-20Ta-1.5Zr

-1.5Mo-0.12C

Cb132M

ROOM

1361

904.1

388.9

837.6

337.5

4

/

Nb-10W-2．5Zr

Cb-752

ROOM
1093 
1371 
1645

514．5 
271．5 
121．5 
53．8

411．6 
221．4 
113．7 
53．8

31 
45．7 
>70 
>45

Nb-10W-1Zr -0．1C

D-43

ROOM
1093 
1371 
1421

572．3 
285．2 
137．2 
109．8

449．8 
237．1 
103．9 
77．4

23．5 
14．7 
35．6 
52．0

Nb-10Hf-1Ti

C-103

ROOM
1093
1371
1482
1649

416．5
186．2
89．2
63．7
34．3

288
137．2
72
58．8
19．7

25
45
>70
>70
>70

Nb-28Hf-15W-
4Ta-2Zr-0．1C

WC3015

ROOM
1800

884．9
693．7

836．9
528．2

33
——

                                       Nb-Ti-Al  alloy

  Alloy

grade

Content%

Nb

Ti

Al

Mo

V

Zr

Cr

Y

OTHER

Nb-38.5Ti-5.5Al

55BTIO

Base

37--40

5--6

Nb-Ti-Al

   /

Base

15

4.5

Nb-Ti-Al-Mo-Zr-Hf

    /

Base

34--42

4--7

2--6

≤3

Hf≤4

Nb-26Ti-5.5Al

  HT2SA5

Base

25—27

5--6

Nb-Ti-Al-Cr-Y

Base

20--30

5--8

0.3--3

0.01-0.05

Nb-Ti-Al-Mo-V-Hf-w-Y

Base

10--20

2--5

6.5--15

2--5

0.01-0.1

Hf2—5

W2--5

ATI,VAC,CHINA   Nb alloy contrast

impurity

ATI

VAC

CHINA

O
H
C
Fe
Ta
N
Ni
Si
Cu
Al
Cr
Ti CONTENT

HARDNESS(HB)

≤1000
≤35
≤100
≤50
≤1000
≤100
≤100
≤100
≤100
≤100
≤60

±1．5％
148

≤1000
≤35
≤100
≤125
≤1800
≤100
≤50
≤100
≤60
≤100
≤60

±1．5％

500
≤35
100
≤125
≤1000
100
≤50
≤100
≤50
≤50
≤50

±1．5％
130