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???? ?????????? ??? ???? ???, ????, ?????, ???? ???? ?? ???? Co ?????? ????? 27. ????? ????? ?????? ????? ????????? ????? ??? ??? ??? ????? ??????? ??????, ?????? ???? ?????? ??? ?? ????? ?? ??? ??? ???? ???????, ????? ????? ?????? ?? ??? ???? ????? ?? 1735 ??? ?????? ?????.

????? ???? ????? ??????? ???????, ????? ????, ????? ????. ????? ???? ???? ??? ???? ???? ?????? ???????, ??????, ???, ?????, ?????. ?????-60 ??? radioisotope ???? ?????, ????? ????? ??????? ?? ???? ??? ?????? ???????.

????? ??? ???? ???? ????? ??? ??????? ?? ????? ????? ????? ?? coenzymes ???? cobalamins. ??? ?????? B12 ??????? ???? ????? ???????. ????? ??? ?? ???? ?????? ????????, ???? ???????, ????? ????? ?????? ????? ??? ?????.

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Cobalt Powder Grades:

Grade

F.s.s.s(um)

Oxygen% Max.

Cobalt%

Scott density g/in3

Type A

Type B

Co06

0.6-0.9

0.6

≥99.8

7-9

8-11

Co12

1.0-1.4

0.5

≥99.8

8-10

11-13

Co25

2.0-3.0

0.4

≥99.8

9-13

13-15

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 Element

Max. %

Typical %

C

0.03

0.02

Ca

0.02

0.005

Cu

0.01

0.005

Fe

0.03

0.008

Mg

0.01

0.002

Mn

0.01

0.001

Na

0.02

0.005

Ni

0.02

0.01

S

0.005

0.0005

Si

0.01

0.002

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Purity %

99.0

Melting Point °C

1495

Boiling Point °C

2900

Density G/Cm3

8.92

Vickers Hardness @ 20 °C

253

Coef. of Exp. @ 20 °C

12.5 x 10-6

Elec Resistivity Microhm-Cm

6.24

Crystal Structure

Hex

Appearance

Grey

?? ?? ?? ????? ????? ?????, ?? ???? ????? ????? ????"? ?????:sales@chinatungsten.com ?? ??????:+86 592 5129696.

 

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