Производство и продажа металлов и оксидов

Sheet

TANTALUM SHEETS, FOIL

 Foil is made from tantalum ingots of vacuum melting with impurity content according to norms mentioned in the table.

 Chemical content (HDTV)

Name of the element, %

Mass concentration, %

Name of the element, %

Mass concentation, %

Ta

99,92

Mg

0,0002

Si

0,0012

Ni

0,0002

Fe

0,0012

Cr

0,00025

Mn

0,00015

Ti

0,0003

Sn

0,0001

Co

0,0001

Cu

0,0005

Na

0,00015

Nb

0,014

C

0,0050

Zr

0,0007

N

0,0050

Al

0,0005

O

0,0050

Ca

0,0010

H

0,0004

W

0,005

Mo

0,0005

The concentration of carbon, oxigen, hydrogen and nitrogen in foil is conrolled. Mass concentration of controlled dashs must correspond to norms mentioned in the table: 

Name of the element

Mass concentration, %, no more then

С

0,003

О

0,04

N

0,01

H

0,003

 

Kind

Thickness, mm

Deviation

Width, mm

Deviation 

Length, mm

Фольга

0.01

0.02

0.03

-

-

-

+0.002

30-120

+1

>300

0.04

0.05

0.06

0.07

0.08

0.09

+0.004

0.10

0.15

0.20

-

-

-

+0.02

+2

Листы

0.25

0.30

0.35

0.40

-

-

+0,02

50-150

+2

>300

0.,50

0.60

0.70

0.80

0.90

1.0

+0.04

1.2

1.5

-

-

-

-

+0.1

+3

2.0

2.5

3.0

-

-

-

+0.2

4.0

5.0

6.0

8.0

10.0

-

-

+5

 

Products are made and controlled according to technological normative documents. The foil that is made fron one ingot,  status of materiel and thickness is considered to be a consignment .

 The foil is delivered in unannealed condition. The surface of the foil must be cleanm, without cracks,  declines, folds, exfoliation and reach-through holes. Little  scratchs, hairlines, blisters, roll marks and dimples caused by way of production, if their depth of deposition doesn't take the foil out the deviation limit of thickness are allowed .

 

 

 

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