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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)(¡Ý) | Tensile strength (mpa)(¡Ý) | Elogation after cutting a80£¨%£©£¨¡Ý£© | Surface quality grade | |||
Nominal thickness£¨mm£© | |||||||
¡Ü0.40 | 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) |
¡Ý60 | Z60 | ¡¡ | - | Z06 | - |
¡Ý80 | Z80 | 40/40 | - | Z08 | - |
¡Ý90 | - | - | - | - | Z90(G30) |
¡Ý100 | Z100 | 50/50 | Z100 | Z10 | - |
¡Ý120 | Z120 | ¡¡ | - | Z12 | Z120(G40) |
¡Ý140 | - | 70/70 | Z140 | Z14 | - |
¡Ý150 | Z150 | ¡¡ | - | - | - |
¡Ý180 | Z180 | ¡¡ | - | Z18 | Z180(G60) |
¡Ý200 | Z200 | 100/100 | Z200 | Z20 | - |
¡Ý220 | Z220 | ¡¡ | - | Z22 | - |
¡Ý225 | - | ¡¡ | Z225 | - | - |
¡Ý250 | Z250 | 125/125 | - | Z25 | - |
¡Ý275 | Z275 | 140/140 | Z275 | Z27 | Z275(G90) |
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