Product specifications

Export grade

Welding material grade

Aluminum grade

performance indicator

Yotech Standard

Yotech Standard

National standard level one

Content (active ingredient)      ％

≥99.0

≥99.0

≥98.0

Al              ％

15-18

17.5-18.5  

17.25-19 

Na              ％

28.0-32.0

27.0-31.0

29.0-31.0

F            ％

48.0-53.0

50.0-53.0

52.15-55.0

Fe              ％

≤0.001

≤0.002

≤0.005

SO4           ％

≤0.02

≤0.05

≤0.05

Pb          ％

≤0.001

≤0.001

≤0. 01

Cl          ％

≤0.01

≤0.02

≤0.1

K             ％

≤0.1

≤0.2

≤0. 2

SiO2        ％

≤0.002

≤0.002

≤0. 06

Central control inspection

Appearance appraisal

White Powder

White Powder

White Powder

Loss on drying（105℃/2H）  ％

≤4.0 (300℃/2H)

≤0.5

≤1.5

Whiteness (70-90um particle size)  ％

≥95

≥90

≥95

melting point                 ℃

550-560

550-580

560-580

Transmittance (15% aqueous solution)  ％

≥98

≥92

≥80

Foreign object determination

≤1mm/10 pieces

≤1mm/10 pieces

≤1mm/10 pieces

Grain size (U.S.SCREEN) mesh

50% pass 2000 mesh

50% pass 1250 mesh

90% pass through 450 mesh

quality guarantee period           year

Two years

Two years

Two years

Supply reference

Production process

99.5％HF membrane method KOH

99.5％HF membrane method KOH

99％HF membrane method KOH

Packaging specifications

25KG composite paper bag/16T/(20’)FCL

25KG composite paper bag/16T/(20’)FCL

25KG composite paper bag/16T/(20’)FCL

Quotation specifications

FCL

FCL

FCL

Quotation reference          Yuan/ton

Quotation validity period

three months

three months

three months