ASTM B392 Niobium Bare din aliaj

Content, Max, Weight %

Element

Grand: R04200

Grand:R04210

Grand:R04251

Grand:R04261

Unalloyed Niobium

Unalloyed Niobium

(Reactor grade niobium-1% Zirconium)

(Commercial grade niobium-1% Zirconium)

C

0.01

0.01

0.01

0.01

O

0.015

0.025

0.015

0.025

N

0.01

0.01

0.01

0.01

H

0.0015

0.0015

0.0015

0.0015

Fe

0.005

0.01

0.005

0.01

Mo

0.01

0.02

0.01

0.05

Ta

0.1

0.3

0.1

0.5

Ni

0.005

0.005

0.005

0.005

Si

0.005

0.005

0.005

0.005

Ti

0.02

0.03

0.02

0.03

W

0.03

0.05

0.03

0.05

Zr

0.02

0.02

0.8~1.2

0.8~1.2

Nb

Remainder

Remainder

Remainder

Remainder

                Grade(UNS)

Annealed

Tensile strength min, psi (MPa)

Yield strength min,psi (MPa)(2%)

Elongation min, % (1 inch gage length)

R04200, R04210

18000 (125)

10500 (73)

15~20

R04251, R04261

28000 (195)

18000 (125)

15~20

R04220(RRR grade)

14000 (95)

7200 (50)

30