CR Sheets

PRODUCT RANGE :-

Standard Width & thickness matrix:

STANDARDWIDTHS(mm)













STANDARD THICKNESS(mm)

POSSIBLE FOR THE WIDTH
1000
1250/1270
1320
1420
1540
0.40
0.40
 
 
 
0.45
0.45
 
 
 
0.50
0.50
0.50
 
 
0.55
0.55
0.55
 
 
0.60
0.60
0.60
0.60
 
0.63/0.65
0.63/0.65
0.63/0.65
0.63/0.65
 
0.70
0.70
0.70
0.70
0.70
0.75
0.75
0.75
0.75
0.75
0.80
0.80
0.80
0.80
0.80
0.90
0.90
0.90
0.90
0.90
0.95
0.95
0.95
0.95
0.95
1.00
1.00
1.00
1.00
1.00
1.10
1.10
1.10
1.10
1.10
1.25
1.25
1.25
1.25
1.25
1.50
1.50
1.50
1.50
1.50
1.55
1.55
1.55
1.55
1.55
1.60
1.60
1.60
1.60
1.60
2.00
2.00
2.00
2.00
2.00
2.50
2.50
2.50
2.50
2.50
3.00
3.00
3.00
3.00
3.00


Technical Specification


TDC No
Grade
AU03
D
AU02
TR15
O
Dimensional
Min
Max
Min
Max
Min
Max
Thickness Range(mm)
0.4
1.50
1.55
3.20
0.4
3.2
Width Range
1000
1540
1000
1540
1000
1540
Thickness Tolerance+/-(mm)

Width Tolerance Min(-ve)mm
Width Tolerance Min(+ve)mm*
0.5% of Center Line
Thickness
0
12
0.5% of Center Line
Thickness
0
12
0.5% of Center Line
Thickness
0
12
Mode of forming
Drawing
Bending








Chemistry
Min
Max
Min
Max
Min
Max
%C
0.02
0.07
0.02
0.07
0.035
0.1
%Mn
0.18
0.4
0.10
0.25
0.20
0.6
%Si


0.04


0.03


0.10
%S


0.02


0.015


0.04
%P


0.025


0.025


0.04
N(ppm)


60


0.60




%Al
0.2


0.021
0.60




%B




0.0020






Mechanical Properties
Min
Max
Min
Max
Min
Max
YS(Mpa)
140
220
140
220
-
-
UTS(Mpa)
280


280


-
-
%EI
35


35






Hardness (HRB)


50


50
55
65
Bend
OK


OK


OK


ECV (mm)
9.1


9.1






Surface Characteristics
Min
Max
Min
Max
Min
Max
Ra
0.8
1.60
0.8
1.40
0.6
1.6
R.P.Oil Type
Yes


Yes


Yes


Shape
Min
Max
Min
Max
Min
Max
Waviness
 
10
 
10
 
10
Centre Buckle(mm)
 
8
 
8
 
8
Camber(mm)
 
1
 
1
 
1


Note:Specification listed above are subjected to change without notice *closer tolerance on mutual agreement

About Us

Mariamman Steel  is among the leading stockist and distributor in all type of Steel solutions. We maintain an admirable stock of CR Sheets, HR Sheets, GP Sheets, MS Angles, MS Channels, RS Joists etc. Starting with a humble beginning now our operations have spread to all parts of Chennai and beyond.

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