Billets

Billet 2830
 

Concast Carbon Steel Billets For Re-rolling into Steels for General Structural purposes. IS 2830:2012

Designation C % Mn % P % Max S % Max CE Max
Grade
  A B C A B C A B C
C15
0.12-0.18
0.30-0.60 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.390
C18 0.15-0.21 0.30-0.60 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.390
C20 0.17-0.23
0.30-0.60 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C15MMn 0.12-0.18 0.60-1.00 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C18MMn 0.15-0.21 0.60-1.00 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C20MMn 0.17-0.23 0.60-1.00 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C15HMn 0.12-0.18 1.00 -1.50 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C18HMn
0.15-0.21 1.00 -1.50 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C20HMn 0.17-0.23 1.00 -1.50 0.050 0.045 0.040 0.050 0.045 0.040 0.420 0.410 0.410
C25HMn
0.30 Max 1.80 Max 0.060 Max 0.060 Max S + P: 0.11 Max


Size : 150x150mm or 100x100mm square with lengths 6 meters and 12 meters.

NOTES

  1. Steel can be ordered with restricted sulphur and phosphorous supplied on mutual agreement.
  2. The minimum Si content in silicon killed steel shall not be less than 0.10 percent when the steel is Al/Al-Si killed, the requirement regarding minimum silicon content need not apply. The silicon content shall not exceed 0.40 percent.
  3. When micro-alloying elements like Nb, V and Ti are used individually or in combination the total content shall not exceed 0.2 percent.
  4. Nitrogen content of the steel shall not exceed 0.012 percent and shall be ensured by  occasional check analysis.
  5. TMT bars as per IS 1786: 2008 can be rolled from IS-2830: 2012 .
  6. When agreed upon restricted chemistry can be supplied to customers with quality extra .