PRODUCTS

Designation

Type

Shape

Typical use description

NK5048F2A

Sodium-

containing

Granule

Powder

Aluminum and aluminum alloys covering flux,used for covering molten aluminum & aluminum alloys

（Mg＜2%）to prevent burning loss and air suction.

NK4847F5A

Aluminum and aluminum alloys refining flux, used for refining molten aluminum and aluminum alloys

(Mg < 2%) in the furnace, to reduce the hydrogen content in the molten

aluminum and achieve the effect of separating dross from aluminum.

NK4649F5A

NM4555A

NM6040B

MK4844B

Sodium-free,

Sodium removal

Used for covering molten aluminum and aluminum alloys to prevent burning loss and air suction.

Used for molten aluminum and aluminum alloys refining to play the role of degassing and deslagging.

MK4060B

Uesd for refining and removal of alkali and alkaline earth metals from molten

aluminum and aluminum alloys.

MK4357B

MK6040B

Designation

Chemical composition (mass fraction) %

NaCl

KCl

MgCl2

CaCl2

BaCl2

MgO

KAlF4

Na3AlF6

CaF2

SO42-

PO43-

NO3-

NK5048F2A

48～52

46～50

-

-

-

-

-

-

1.5～2.5

0.2

0.05

0.01

NK4847F5A

46～50

45～49

-

-

-

-

-

4.5～5.5

-

0.2

0.05

0.01

NK4649F5A

44～48

47～51

-

-

-

-

4.5～5.5

-

-

0.2

0.05

0.01

NM4555A

44～46

1.0

54～56

1.0

-

0.5

-

-

-

0.2

0.05

0.01

NM6040B

59～61

1.0

39～41

1.0

-

0.5

-

-

-

0.2

0.05

0.01

MK4844B

1.0

42～46

46～50

1.0

5～8

0.5

-

-

-

0.2

0.05

0.01

MK4060B

1.0

59～61

39～41

1.0

-

0.5

-

-

-

0.2

0.05

0.01

MK4357B

1.0

56～58

42～44

1.0

-

0.5

-

-

-

0.2

0.05

0.01

MK6040B

1.0

39～41

59～61

1.0

-

0.5

-

-

-

0.2

0.05

0.01

Notes:

1. The single value of the content in the table is the maximum limit.

2. The “-” in the table refers to non-conventional analytes.

Shape/Size

Sieve passing rate

Sieve aperture/mm

5.0

3.35

2.8

2.5

0.85

0.25

Powder（0.25mm～0.85mm）

-

-

-

-

≥93%

≤3%

Small granules（＞0.85mm～2.5mm）

-

-

-

≥95%

≤3%

-

Medium granules（＞2.5mm～3.35mm）

-

≥95%

-

≤3%

-

-

Large granules（2.8mm～5.0mm）

≥93%

-

≤4%

-

-

-

Designation

Liquidus temperature  ℃

Allowable deviation

NK5048F2A

660

±7

NK4847F5A

650

±7

NK4649F5A

650

±7

NM4555A

445

±7

NM6040B

480

±6

MK4844B

429

±6

MK4060B

430

±6

MK4357B

440

±6

MK6040B

490

±6

Type of flux

Flux usage  kg/tAl

Primary aluminum

Remelting aluminum ingot

Secondary Aluminum

Remelting aluminum ingot(or Primary aluminum)+50% Secondary Aluminum

Covering

0.6～1.5

0.3～1.1

0.8～1.8

0.7～1.7

Refining

0.5～1.3

0.4～1.0

1.0～3.0

0.6～1.5

Alkali metals and alkaline earth metals content of aluminum alloys before refining    ppm

The removal rate of alkali metals and alkaline earth metals is not less than %

＞20

80

10～20

60

＜10

40