Standard
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 require ments
-
-
-
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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