 |
-
-
◆ STEEL PIPE
-
-
◆ STEEL COIL,STEEL PLATE,STEEL
-
-
◆ SECTION STEEL
-
-
◆ STEEL BAR AND REBAR
-
-
◆ WIRE ROD
|
 |
|
COLD ROLLED COATED COIL
Code for Tin-coating Products
|
Item
|
Type
|
Code
|
|
Original Steel Sheet
|
—
|
MR, L, D
|
|
Temper
|
—
|
T-1, T-2, T-2.5, T-3, T-4, T-5,
DR-7M, DR-8, DR-9,
DR9M, DR-10
|
|
Annealing Mode
|
Continuous Annealing
|
CA
|
|
Cover Annealing
|
BA
|
|
Marking for
Tin-coating
Products
(with Different
Coating Thickness
of both surfaces)
|
Wholly Mark for Thick
Tin-coating Surface
|
A
|
|
Wholly Mark for Thin
Tin-coating Surface
|
D
|
|
Edge Mark for Thick
Tin-coating Surface
|
F
|
|
Edge Mark for Thin
Tin-coating Surface
|
G
|
|
Classification for
Surface Treatment
|
Bright Surface
|
B
|
|
Rough Surface
|
R
|
|
Silver Surface
|
S
|
|
Tarnished Surface
|
M
|
|
Surface Quality
|
Grade I
|
I
|
|
Grade II
|
II
|
|
Surface Treatment
|
Chemical Passivation
|
CP
|
|
Electric Chemical
Passivation
|
CE
|
|
Low Chrome Passivation
|
LCr
|
|
Shape of Edges
|
Straight Edge
|
SL
|
|
Undee Edge
|
WL
|
Classification & Code for Tin-coating Products
|
Temper Code
|
Hardness (HR30Tm)
|
|
Target
|
Tolerance
|
|
T-1
|
49
|
49±3
|
|
T-2
|
53
|
53±3
|
|
T-2.5
|
55
|
55±3
|
|
T-3
|
57
|
57±3
|
|
T-3.5
|
59
|
59±3
|
|
T-4
|
61
|
61±3
|
|
T-5
|
65
|
65±3
|
|
Temper Code
|
Hardness (HR30Tm)
|
Target Value of
Tensile Strength (Mpa)
|
|
DR-7M
|
71
|
520
|
|
DR-8
|
73
|
550
|
|
DR-9
|
76
|
620
|
|
DR-9M
|
77
|
660
|
|
DR-10
|
80
|
690
|
Dimension
|
Product
Assortment
|
Type
|
Thickness
(mm)
|
Width
(mm)
|
Length
( ID of Steel Coil )
(mm)
|
|
First Rolled
Product
|
Steel Sheet
|
0.18-0.55
|
700-1200
|
500-1168
|
|
Steel Coil
|
420
|
|
Second Rolled
Product
|
Steel Sheet
|
0.12-0.36
|
700-1020
|
500-1168
|
|
Steel Coil
|
420
|
The Scope of Tin-Coating
|
Coating Type
|
Code of
Tin-coating
Weight
|
Tin-coating
Weight
(g/m2)
|
Minimum Average
Tin-coating Weight
(g/m2)
|
|
Equality
Thickness
Tin-coating
(E)
|
1.1 / 1.1
|
1.1 / 1.1
|
0.9 / 0.9
|
|
2.2 / 2.2
|
2.2 / 2.2
|
1.8 / 1.8
|
|
2.8 / 2.8
|
2.8 / 2.8
|
2.5 / 2.5
|
|
5.6 / 5.6
|
5.6 / 5.6
|
5.2 / 5.2
|
|
8.4 / 8.4
|
8.4 / 8.4
|
7.8 / 7.8
|
|
11.2 / 11.2
|
11.2 / 11.2
|
10.1 / 10.1
|
|
Different
Thickness
Tin-coating
(D or A)
|
2.8 / 1.1
|
2.8 / 1.1
|
2.5 / 0.9
|
|
1.1 / 2.8
|
1.1 / 2.8
|
0.9 / 2.5
|
|
5.6 / 1.1
|
5.6 / 1.1
|
5.2 / 0.9
|
|
1.1 / 5.6
|
1.1 / 5.6
|
0.9 / 5.2
|
|
5.6 / 2.8
|
5.6 / 2.8
|
5.2 / 2.5
|
|
2.8 / 5.6
|
2.8 / 5.6
|
2.5 / 5.2
|
|
8.4 / 2.8
|
8.4 / 2.8
|
7.8 / 2.5
|
|
2.8 / 8.4
|
2.8 / 8.4
|
2.5 / 7.8
|
|
8.4 / 5.6
|
8.4 / 5.6
|
7.8 / 5.2
|
|
5.6 / 8.4
|
5.6 / 8.4
|
5.2 / 7.8
|
|
11.2 / 2.8
|
11.2 / 2.8
|
10.1 / 2.5
|
|
2.8 / 11.2
|
2.8 / 11.2
|
2.5 / 10.1
|
|
11.2 / 5.6
|
11.2 / 5.6
|
10.1 / 5.2
|
|
5.6 / 11.2
|
5.6 / 11.2
|
5.2 / 10.1
|
|
11.1 / 8.4
|
11.1 / 8.4
|
10.1 / 7.8
|
|
8.4 / 11.2
|
8.4 / 11.2
|
7.8 / 10.1
|
|
15.1 / 5.6
|
15.1 / 5.6
|
13.9 / 5.2
|
|
5.6 / 15.1
|
5.6 / 15.1
|
5.2 / 13.9
|
Theoretical Weight of Basic Plate
|
Thickness
(mm)
|
Unit
Weight
(kg/m2)
|
|
Thickness
(mm)
|
Unit
Weight
(kg/m2)
|
|
Thickness
(mm)
|
Unit
Weight
(kg/m2)
|
|
0.18
|
1.413
|
|
0.30
|
2.355
|
|
0.43
|
3.376
|
|
0.19
|
1.492
|
0.32
|
2.512
|
0.45
|
3.533
|
|
0.21
|
1.649
|
0.35
|
2.748
|
0.47
|
3.690
|
|
0.22
|
1.727
|
0.37
|
2.905
|
0.48
|
3.768
|
|
0.23
|
1.806
|
0.38
|
2.983
|
0.50
|
3.925
|
|
0.24
|
1.884
|
0.40
|
3.140
|
0.55
|
4.318
|
|
0.26
|
2.041
|
0.42
|
3.297
|
|
|
Steel Grade
|
Standard
|
Steel Grade
|
|
ASTM A623M-2002
|
T-1(T49), T-2(T53), T-3(T57), T-4(T61), T-5(65)
|
|
ASTM A623M-2003
|
DR-7.5, DR-8, DR-8.5, DR-9, DR-9.5
|
|
JIS G3303-2002
|
T-1, T-2, T-2.5, T-3, T-4, T-5, DR-8, DR-9,
DR-9M, DR-10
|
|
DIN EN 10203-1991
|
T50, T52, T57, T61, T65
|
|
EN 10203-1991
|
DR550, DR620, DR660
|
|
GB/T 2520-2000
|
TH50+SE, TH52+SE, TH55+SE, TH57+SE,
TH61+SE, TH65+SE, T550+SE, T580+SE,
T620+SE, T660+SE, T690+SE
|
|
