|
(IS : 1977-1969; IS : 2062-1969; IS : 226-1969; IS :
961-1962) |
|
Designation of steel |
Tensile strength kgf/mm |
Yield strength for thickness |
Elongation percent |
C % |
S % |
P % |
Typical Applications |
|
upto
20 mm |
20-40 mm |
|
St 32-O |
32-44 |
- |
- |
26 |
- |
0.07 |
0.07 |
General engineering purposes |
St 42-O |
42-54 |
26.0 |
- |
23 |
- |
0.07 |
0.07 |
|
St
42-S |
42-54 |
26.0 |
24.0 |
23 |
0.25 |
0.055 |
0.055 |
All
welded structures |
|
St 42-W |
42-54 |
26.0 |
24.0 |
23 |
0.20 |
0.055 |
0.055 |
Subjected to fusion welding |
|
St 58-HT |
58 Min. |
36.0 |
35.0 |
20 |
0.27 |
0.055 |
0.055 |
Structures without welding |
|
St 55-HTW |
55 Min. |
36.0 |
35.0 |
20 |
0.20 |
0.055 |
0.055 |
Structures with guaranteed
weldability |
|