Structural steel is a category of steel construction material that is produced with a particular cross section or shape, and some specified values of strength and chemical composition. Structural steel composition, strength, size, shape, strength, and storage are controlled in most advanced countries. Structural steel, one of the other widely used building materials in the construction industry, is also the most studied and best understood.
Grade Designation |
Quality |
Ladle Analysis, Percent, Max |
Carbon Equivalent (CE), Max |
Mode of Deoxidation |
||||
E 250 |
|
C |
Mn |
S |
P |
Si |
|
|
A |
0.23 |
1.50 |
0.045 |
0.045 |
0.40 |
0.42 |
Semi-killed/killed |
|
BR |
0.22 |
1.50 |
0.045 |
0.045 |
0.40 |
0.41 |
Semi-killed/killed |
Grade Designation |
Quality |
Ladle Analysis, Percent, Max |
Carbon Equivalent (CE), Max |
Mode of Deoxidation |
||||
E 250 |
|
C |
Mn |
S |
P |
Si |
|
|
A BR B 0 |
0.20 |
1.55 |
0.045 |
0.045 |
0.45 |
0.47 |
Semi-killed/killed |
|
C |
0.20 |
1.55 |
0.040 |
0.040 |
0.45 |
0.45 |
Killed |
Grade | C | Si | Mn | P≤ | S≤ | Cr | Mo | Ni | Other |
---|---|---|---|---|---|---|---|---|---|
SS 304 | ≤0.07 | ≤1.00 | ≤2.00 | 0.035 | 0.03 | 17-19 | - | 8.0 | - |
SS316 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18.5 | 2 | 10.0 | - |