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    Product grade,properties and surface quality grade

    Product grade and properties(Refer to JISG 3302-2010)
    Product grade
    Yield strength (mpa)(≥)

    Tensile strength (mpa)(≥)

    Elogation after cutting a80(%)(≥)
    Surface quality grade
    Nominal thickness(mm)
    ≤0.40
    0.40~0.60
    0.60~1.00
    1.00~1.20
    SGCC
    205
    270
    -
    -
    -
    -
    FA、FB
    SGCD1
    -
    270
    -
    34
    36
    38
    FA、FB、FC
    SGCD2
    -
    270
    -
    36
    38
    40
    FA、FB、FC
    SGC340
    245
    340
    20
    20
    20
    20
    FA
    SGC400
    295
    400
    18
    18
    18
    18
    FA
    SGC440
    335
    440
    18
    18
    18
    18
    FA

     

    Surface quality grade instructions
    Name
    Code
    Instructions
    Ordinary surface finishing
    FA
    Normal request on the skinpass surface
    Higher surface finishing
    FB
    Higher quality request on the skinpass surface
    Superior surface finishing
    FC
    Superior quality request on the skinpass surface

     

    Surface Treatment
    Name
    Code
    Instructions
    Chrome free
    C5
    This surface treatment could reduce the white rust on the surface with further limted harmful hexavalent chromium material.
    Chrome free &anti-finger print
    A
    This surface treatment could reduce the white rust on the surface with Anti-finger print film.
    Oiling
    O
    This surface treatment could reduce the white rust on the surface with antirust oil.
    Non-treatment
    U
    This surface is without any surface treatment.

     

    Comparison table of zinc-coating code (incomplete equivalent)
    Weight of zinc-coating (G/M2)
    Zinc-coating code
    China Standard
    Bao Steel Standard
    EU Standard
    Japan Standard
    USA Standard
    no requirements
    -
     
    -
    -
    Z001(G01)
    ≥60
    Z60
     
    -
    Z06
    -
    ≥80
    Z80
    40/40
    -
    Z08
    -
    ≥90
    -
    -
    -
    -
    Z90(G30)
    ≥100
    Z100
    50/50
    Z100
    Z10
    -
    ≥120
    Z120
     
    -
    Z12
    Z120(G40)
    ≥140
    -
    70/70
    Z140
    Z14
    -
    ≥150
    Z150
     
    -
    -
    -
    ≥180
    Z180
     
    -
    Z18
    Z180(G60)
    ≥200
    Z200
    100/100
    Z200
    Z20
    -
    ≥220
    Z220
     
    -
    Z22
    -
    ≥225
    -
     
    Z225
    -
    -
    ≥250
    Z250
    125/125
    -
    Z25
    -
    ≥275
    Z275
    140/140
    Z275
    Z27
    Z275(G90)

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