Non Ferrous Metal Products
Cold Rolled Steel Strips
Description of the Product
Industry Application
Automobile
Bicycle
Containers
General Engineering
Precision Tubes
Home Appliances
Radiators
Stampings/Electrical
White Goods
Transformers
Brief Manufacturing Process
Pickling
Cold Rolling
Hydrogen/Nitrogen Annealing
Skin PassingSheared/ Mill
Slitting and Shearing
Oiling and Packing
Product Variations/ Specifications Grades of Steel :-
Low Carbon
High Carbon Steel
High Carbon Low Alloy Steel
Medium Carbon Low Alloy Steel
High Strength Low Alloy Steels
(HLSA), Medium Carbon Steels and High Carbon Steels. Size Range :-
Width : 10.0 mm to 770 mm
Thickness : 0.15 mm to 5.0 mm
Coil Weight : 2 Kg/mm - 18 Kg/mm of Strip width
Coil Dimension : ID 400-500 mm: OD - 1200 mm Max.
Cut to Lengths : 350 - 3000 mm in 0.40 - 3.20 mm
thickness range
Surface Finish :- Bright : Suitable for most purposes and recommended for
Electroplating with prior buffing and Electro/Hot Dip Galvanizing Matt : Surface roughness to have trouble free deep drawing and
lacquering operationsEdges :- Product Chemistry And Properties
CHEMISTRY
(% MAX) PROPERTIES
GRADE C MN S P TS(Kg/mm2) %Elongation(min)
Ordinary(O) 0.15
0.60
0.055
0.055
Drawing(D) 0.12
0.50
0.040
0.040
27.5-41.8
28
Deep Drawing(DD) 0.10
0.45
0.035
0.035
27.5-37.7
32
Extra Deep Drawing (EDD) 0.08
0.40
0.030
0.030
27.5-35.7
36
Size Range And Tolerances
THICKNESS(mm) WIDTH(mm) COIL(mm) LENGTH(mm)
RANGE TOLERANCE MIN. MAX. TOLERANCE ID MIN. OD MAX. MIN. MAX. TOLERANCE
0.30-0.40
+/-0.02
9.5
265
+/-0.10
203
600
0.41-0.60
+/-0.03
9.5
335
+/-0.10
305
1000
0.61-0.70
+/-0.04
9.5
335
+/-0.15
305
1000
1000
3500
0.71-1.00
+/-0.04
9.5
335
+/-0.15
305
1000
1000
3500
+//- 10
1.01-1.60
+/-0.05
9.5
345
+/-0.15
305
1000
1000
3500
+/- 10
1.61-2.00
+/-0.05
9.5
345
+/-0.15
305
1000
1000
3500
+/- 10
2.01-2.50
+/-0.06
12.0
345
+/-0.15
305
1000
1000
3500
+/- 10
2.51-4.00
+/-0.07
12.0
345
+/-0.20
405
1000
1000
3500
+/- 10
4.01-4.50
+/-0.08
12.0
345
+/-0.50
405
1000
1000
3000*
4.51-7.00
+/-0.10
50.0
240
+/-0.50
-
-
1000
3000*
* Lengths are these thickness ranges may
preferably be procured in multiple of widths or blank sizes. Note: Tolerances shown are for general purpose. In case close
tolerances are required, please mention same in your enquiry.
Hardness Comparison Table
VPN BHN RB KGS PER
SQ.IN. POUNDS PER
SQ.IN. TONS PER
SQ.IN.
260
255
-
90.1
128128
57.2
220
215
97
76.2
108416
48.4
190
185
91
65.8
93632
41.8
170
165
86
58.9
83776
37.4
150
145
81
52.0
73920
33.0
142
137
77.5
49.1
69888
31.2
134
129
73
46.4
66080
29.5
126
121
68.5
43.6
62048
27.7
118
113
64
40.9
58240
26.0
110
105
59.5
38.1
54208
24.2
102
97
55
35.3
50176
22.4
94
89
51
32.6
46368
20.7
86
81
46
29.8
42336
18.9
Minimum ECV Chart
THICKNESS
D DD EDD
0.5
8.2
8.8
9.2
0.6
8.6
9.1
9.5
0.7
8.9
9.4
9.8
0.8
9.2
9.7
10.1
0.9
9.5
10.0
10.4
1.0
9.8
10.2
10.6
1.1
10.1
10.5
10.8
1.2
10.3
10.7
11.2
1.3
10.5
10.9
11.3
1.4
10.7
11.1
11.5
1.5
10.9
11.3
11.6
1.6
11.1
11.5
11.8
1.7
11.2
11.6
11.9
1.8
11.3
11.7
12.1
1.9
11.3
11.8
12.2
2.0
11.3
11.9
12.3
Note: For Higher ECV requirements and for thickness over 2.0 mm,
Please enquire.
Product Testing Product Testing & Quality Assurance :-
Inspection Equipment
Use
Roughness Tester
Ra Value
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