Product Grades
Base Metal
Quality
Base Metal Grade
Product Design
Cold-rolled steel sheet
Commercial
SPCC
SECC
Drawing
SPCD
SECD
Deep Drawing
SPCE
SECE
Deep Drawing, Non-aging
SPCF
SECF
Extra Deep Drawing, Non-aging
SPCG
SECG
Cold-rolled steel sheet
(high strength steel)
(high strength steel)
Forming Use
SPFC-440
SEFC-440
SPFC-590
SEFC-590
According to TIS 2223-2558 & JIS G 3313
Thickness Tolerance
Specified Thickness of Base Metal
Specified Width
600 to 1,000mm
1,000 to 1,250mm
1,250 to 1,600mm
Under 0.25mm
± 0.03
± 0.03
-
0.25 to 0.40mm
± 0.04
± 0.04
-
0.40 to 0.60mm
± 0.05
± 0.05
± 0.06
0.60 to 0.80mm
± 0.06
± 0.06
± 0.06
0.80 to 1.00mm
± 0.06
± 0.07
± 0.08
1.00 to 1.25mm
± 0.07
± 0.08
± 0.09
1.25 to 1.60mm
± 0.09
± 0.10
± 0.11
1.60 to 2.00mm
± 0.11
± 0.12
± 0.13
2.00 to 2.30mm
± 0.13
± 0.14
± 0.15
Tolerance on thickness shall be applied to the nominal thickness plus the equivalent zinc coating thickness given in the next table.
Mass of Zinc Coating
Symbol for Zinc on one side
Minimum
g / m2
g / m2
(Reference) Standard
g / m2
μ m
ES
-
-
-
EB
2.5
3
0.4
E8
8.5
10
1.4
E16
17.0
20
2.8
E24
25.5
30
4.2
According to TIS 2223-2558 One Side
Chemical Treatment
Type
Symbol
Characteristics
Chromate free special composite resin
V
VN
Corrosion resistance, Anti-fingerprint, Electric conductivity
Chromate free phosphate treatment
P
PV / PY
As a preparatory coat before painting
Untreated
MM
MM
As base metal
Definition in TIS 2223-2558 license
THAI-ZINC can be supplied oiled after chemically treated :
OILING
Type
Symbol
No Oil Coating
X
With Oil Coating
N
Example Specifications
Example 1
SE
C
C
-
VN
X
E16/E16
↓
↓
↓
↓
↓
↓
Electro
Zn-coated steel
Zn-coated steel
Kind of raw material (C:Cold rolling)
Base metal grade (C:Com
Chemical treat
Oiling Symbol (X:Un-oiling, N:Oiling)
Zinc coating weight
(Top side / Bottom side)
(Top side / Bottom side)
Example 2
SE
C
E
-
PV
X
E8/E8
↓
↓
↓
↓
↓
↓
Electro
Zn-coated steel
Zn-coated steel
Kind of raw material (C:Cold rolling)
Base metal grade (C:Com
Chemical treat
Oiling Symbol (X:Un-oiling, N:Oiling)
Zinc coating weight
(Top side / Bottom side)
(Top side / Bottom side)