Niobium Bar
Baoji Zhipu Non-Ferrous Metals Processing Co.,Ltd is one of the most famous China niobium bar manufacturers and suppliers, welcome to wholesale cheap niobium rod products from our company and factory.
Niobium metal is gray.melting point2468℃,boiling point4742℃,density8.57g/cm³.Niobium metal is stable in the air at room temperature.In the oxygen niobium metal not be completely oxidation.Under the high temperature niobium metal can be combined with C,N,S directly.And niobium metal can be with Ti,Zr,W to alloy.Not with inorganic acid or alkali, not soluble in aqua regia, but soluble in hydrofluoric acid.
Product name
niobium bar
grade
Nb1,Nb2
Standard
GB/T14842-2007
purity
≥99.95%
state
annealing state(M) or hard state(Y)
Medical composition：
grade
Element content(%)
Zr
Ti
C
N
O
H
Ta
Fe
Si
W
Ni
Mo
Cr
Hf
Nb
Nb1
0.02
0.002
0.01
0.015
0.015
0.001
0.10
0.005
0.005
0.03
0.005
0.010
0.002
—
remain
Nb2
0.02
0.005
0.02
0.05
0.025
0.005
0.25
0.03
0.02
0.05
0.01
0.05
0.01
—
remain
NbZr1
0.8~1.2
0.02
0.01
0.01
0.015
0.0015
0.10
0.005
0.005
0.03
0.005
0.01
0.002
—
remain
C-103
0.7
0.7~1.3
0.015
0.015
0.023
0.002
0.5
—
—
0.5
—
—
—
9.0~11.0
remain
Cb752
2.0~3.0
0.2
0.015
0.01
0.02
0.0015
0.5
—
—
9.0~11.0
—
—
—
0.2
remain
tolerance：
Diameter
Diameter tolerance
length
Length tolerance
Forged bar
Crowed bar
Rolled bar
polished bar
3.0~4.5
±0.05
——
±0.05
——
200~1500
+5
>4.5~6.5
±0.10
——
±0.10
——
200~1500
>6.5~10.0
±0.15
——
±0.15
——
200~1500
>10.0~16.0
±0.20
——
±0.20
——
200~2000
+20
>16.0~18.0
±1.0
——
——
±0.30
200~2000
>18.0~25.0
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