chemistry%

designation

chief component

impurities maximum

Ta

Nb

Fe

Si

Ni

W

Mo

Ti

Nb

O

C

H

N

Ta1

Remainder

0.004

0.003

0.002

0.004

0.006

0.002

0.03

0.01

0.004

0.0015

0.002

Ta2

Remainder

0.01

0.01

0.005

0.02

0.02

0.005

0.08

0.015

0.01

0.0015

0.01

TaNb3

Remainder

<3.5

0.01

0.01

0.005

0.02

0.02

0.005

0.015

0.01

0.0015

0.01

TaNb20

Remainder

17.0-23.0

0.01

0.01

0.005

0.02

0.02

0.005

0.015

0.01

0.0015

0.01

Ta2.5W

Remainder

0.005

0.003

0.002

3.0

0.006

0.002

0.04

0.015

0.005

0.0015

0.006

Ta10W

Remainder

0.005

0.003

0.002

11

0.006

0.002

0.04

0.015

0.005

0.0015

0.006

special require of tantalum rod to be agreed on by the supplier and buyer of negotiations.

Diameter, inch (mm)

Tolerance <, +/-inch (mm)

0.010~0.020 excl (0.254~0.508)

< 0.0005 (0.013)

0.020~0.030 excl (0.508~0.762)

< 0.00075 (0.019)

0.030~0.060 excl (0.762~1.524)

< 0.001 (0.025)

0.060~0.090 excl (1.524~2.286)

< 0.0015 (0.038)

0.090~0.125 excl (2.286~3.175)

< 0.002 (0.051)

0.125~0.187 excl (3.175~4.750)

< 0.003 (0.076)

0.187~0.375 excl (4.750~9.525)

< 0.004 (0.102)

0.375~0.500 excl (9.525~12.70)

< 0.005 (0.127)

0.500~0.625 excl (12.70~15.88)

< 0.007 (0.178)

0.625~0.750 excl (15.88~19.05)

< 0.008 (0.203)

0.750~1.000 excl (19.05~25.40)

< 0.010(0.254)

1.000~1.500 excl (25.40~38.10)

< 0.015 (0.381)

1.500~2.000 excl (38.10~50.80)

< 0.020 (0.508)

2.000~2.500 excl (50.80~63.50)

< 0.030 (0.762)

Rod, Diameter 0.125" (3.18mm)~2.5" (63.5mm)

Grade

Tensile strength, psi (MPa), ≥

Yield strength, psi (MPa), ≥

Elongation in1 inch gage length,%, ≥

RO5200/RO5400

25000 (172

15000 (103)

25

RO5252

40000 (276)

28000 (193)

20

RO5255

70000 (482)

55000 (379)

20

RO5240

35000 (244)

15000 (103)

25