Alloy Carbon & Mild Steel Billets

Our Group boasts of such Steel making facilities which not only encompass the latest technology in metallurgy, but also equipments to ensure quality standards and accuracy. Our Steel Melting Shops includes Electric Arc Furnaces and Induction Furnaces We have capacities to manufacture 1,020,430 MTs of Billets and Blooms, of which 100,000 MTs is in Chhatisgarh, 114,200 MTs in Orissa and 806,230 MTs in West Bengal.

We manufacture Billets and Blooms at our Steel Melting Shops in Alloy, Carbon and Mild Steel Grades. Our facilities have been designed in a unique integrated manner, in which the Hot Metal from our Blast Furnace is directly poured in the SMS through ladles and overhead cranes. In the furnaces, DRI and Ferro Alloys are added in appropriate mixes to manufacture Liquid Steel. Our Oxygen Plant provides the furnaces with oxygen, required to create an oxidizing atmosphere in them for manufacture of steel.

We have also been approved by Research Designs and Standards Organisation (RDSO), Ministry of Railways, for manufacture and supply of Carbon Steel Billets and Blooms for Forging. The minimum and maximum sizes approved for Billets is 100 × 100 mm and 130 × 130 mm respectively, while Bloom size 160 × 160 mm has been approved.

The Liquid Steel is collected in ladles using the Eccentric Bottom Tapping method for ensuring absence of slag, and sent to the Ladle Refining Furnace for desulphurization and then to Vacuum Degassing facility for maintaining the Oxygen and Nitrogen contents and removing gaseous elements such as Hydrogen, etc. Next, the Liquid Metal is sent to our Continuous Casting Machines (CCM) for molding them into Billets or Blooms.

With the large scale production of steel at our units and availability of Railway Siding within our plant premises, we are in a position to offer quantities beyond the capacities of our competition in the shortest possible time. We have been awarded the Star Export House Status by the Ministry of Commerce & Industry, Government of India.

Specifications

1. Continuous Cast Rounds for Seamless Pipe Application

Sl. No. Grade Range %C %Mn %S %P %Si %Al %Ni %Cr %Mo %V
1 BS3059 Pt-II Gr243 Min 0.13 0.6 0.15 0.25
    Max 0.18 0.75 0.02 0.02 0.35 0.012 0.2 0.35 0.05
2 BS3059 Pt-II Gr440 Min 0.13 1.05 0.15 0.015
Max 0.17 1.2 0.015 0.02 0.3 0.05 0.2 0.05 0.08
3 DIN 1629 ST52 Min 0.17 1.35 0.2 0.015 0.15
Max 0.21 1.5 0.02 0.02 0.4 0.05 0.2 0.05 0.05
4 DIN 1629 ST52 (Spl) Min 0.18 1.45 0.3 0.015 0.2 0.08
Max 0.22 1.6 0.02 0.02 0.45 0.05 0.3 0.13 0.05
5 SAE 1518 Min 0.17 1.25 0.1 0.015 0.1
Max 0.21 1.4 0.02 0.02 0.35 0.05 0.05 0.05
6 SAE 1040 Min 0.39 0.75 0.25 0.015
Max 0.44 0.9 0.02 0.02 0.4 0.05 0.2 0.1 0.05
7 SAE 1035 Min 0.33 0.65 0.2 0.015
Max 0.37 0.85 0.02 0.02 0.35 0.05 0.2 0.1 0.05
8 ASTM A105 Min 0.18 0.7
Max 0.24 1.0 0.05 0.04 0.35 0.3 0.12 0.03
9 SAE 4130 Min 0.28 0.45 0.2 0.015 0.85 0.15
Max 0.33 0.6 0.02 0.02 0.3 0.05 1.05 0.25 0.05
10 API 5L X-42 Min 0.11 1.05 0.3 0.015 0.13
Max 0.15 1.2 0.015 0.015 0.45 0.05 0.17 0.05
11 API 5L X-60 Min 0.17 1.35 0.35 0.015 0.25 0.12
Max 0.21 1.45 0.015 0.02 0.45 0.05 0.35 0.15
12 N-80 Min 0.4 1.6 0.3 0.015
Max 0.45 1.7 0.02 0.02 0.45 0.05
13 BS-3059 (IBR GRADE) Min 0.13 1.05 0.1 0.02
(Equivalent to- BS-3059) Max 0.18 1.2 0.025 0.025 0.35 0.05 0.2 0.2 0.05 0.05
14 SAE-1518 Min 0.18 1.2 0.1 0.02
(Eq to SAE-1518) Max 0.21 1.3 0.01 0.015 0.35 0.05 0.2 0.2 0.05 0.05
15 SAE-1541 Min 0.4 1.5 0.1 0.02
(Eq. To SAE-1541) Max 0.44 1.65 0.015 0.025 0.25 0.05 0.2 0.2 0.05 0.05
16 ST-52 Min 0.18 1.4 0.3 0.02
(Eq-DIN 1.0580 Max 0.22 1.6 0.015 0.02 0.55 0.05 0.2 0.2 0.05 0.05
17 SAE-1537V Min 0.25 1.5 0.15 0.015 0.12
(EQ. To SAW-17) Max 0.3 1.6 0.02 0.02 0.3 0.035 0.2 0.2 0.05 0.15
18 SAE-1527 Min 0.25 1.5 0.15 0.02
(Eq. To SAW-15) Max 0.29 1.6 0.02 0.02 0.35 0.05 0.2 0.2 0.05 0.05
19 P-110 Min 0.24 1.45 0.15 0.5
(Eq. To SAW-16) Max 0.29 1.55 0.015 0.02 0.35 0.02 0.2 0.6 0.05 0.05
20 SAE-4140 Min 0.38 0.75 0.1 0.02 0.8 0.15
Max 0.43 1.0 0.015 0.025 0.25 0.05 0.2 1.1 0.25 0.05
21 SAE-4130 Min 0.28 0.4 0.1 0.02 0.8 0.15
Max 0.33 0.6 0.015 0.025 0.25 0.05 0.2 1.1 0.25 0.05
22 SAE-1035 Min 0.32 0.6 0.1 0.02
Max 0.38 0.9 0.015 0.025 0.25 0.05 0.2 0.2 0.05 0.05
23 SAE-5120H Min 0.17 0.6 0.15 0.02 0.6
Max 0.23 1.0 0.015 0.025 0.25 0.05 0.2 1.0 0.05 0.05

2. Alloy Grade for Forging Applications (Blooms & Billets)

Sl. No. Grade C Mn S P Si Al Cr %Ni Mo
1 16MnCr5 0.14/0.19 1.00/1.30 0.035 max 0.035 max 0.15/0.40 0.020/0.040 0.80/1.10
2 EN1A 0.07/0.15 0.80/1.20 0.20/0.30 0.040 max 0.10 max
3 EN43BCR 0.35/0.45 0.70/1.00 0.035 max 0.035 max 0.15/0.35 0.020 min 0.45/0.55
4 EN43D 0.60/0.65 0.40/0.60 0.025/0.040 0.045 max 0.15/0.35 0.020 min
5 SAE8620 0.18/0.23 0.70/0.90 0.020/0.050 0.035 max 0.15/0.30 0.020/0.050 0.40/0.60 0.40/0.70 0.15/0.25
6 SCM420 0.18/0.23 0.60/0.85 0.015/0.030 0.030 max 0.15/0.35 0.020/0.035 0.90/1.20 0.15/0.30
7 EN31 0.98/1.10 0.25/0.45 0.025 max 0.025 max 0.15/0.35 1.45/1.60
8 SAE4140 0.38/0.43 0.75/1.00 0.035 MAX 0.035 MAX 0.15/0.30 0.020/0.050 0.80/1.10 0.15/0.25
9 20MnCr5 0.17/0.22 1.10/1.40 0.035 MAX 0.035 MAX 0.15/0.40 0.020/0.050 1.00/1.30
10 A-105 0.18/0.25 0.70/1.05 0.040 max 0.035 max 0.10/0.35 0.020/0.040
11 EN9 0.50/0.60 0.50/0.80 0.030 max 0.030 max 0.20/0.30 0.015/0.025
12 EN8D 0.40/0.45 0.70/0.90 0.030 max 0.030 max 0.20/0.30 0.015/0.025
13 SAE1552 0.47/0.55 1.20/1.50 0.025 max 0.025 max 0.15/0.35 0.015/0.025 0.25 MAX
14 SAE4130 0.29/0.32 0.48/0.58 0.010/0.020 0.025 max 0.20/0.30 0.020/0.040 0.95/1.05 0.25 max 0.18/0.22
15 SAE1040 0.37/0.44 0.60/0.90 0.020/0.035 0.035 MAX 0.10/0.35 0.020/0.040
16 EN15A 0.33/0.40 1.30/1.70 0.010/0.035 0.040 MAX 0.15/0.35 0.020/0.035
17 EN18 0.35/0.45 0.60/0.95 0.035 MAX 0.035MAX 0.15/0.35 0.020/0.035 0.85/1.15
18 CK 45 0.42/0.50 0.50/0.80 0.035 MAX 0.035 MAX 0.10/0.35 0.020/0.040
19 EN 353 0.14/0.20 0.50/1.00 0.020/0.035 0.035 MAX 0.10/0.35 0.020/0.040 0.75/1.25 1.00/1.50 0.08/0.15

3. Carbon Steel Grades for Re-Rolling for General Structural Purpose (Billets / Blooms / Slabs / Ingots) : IS 2830-1992

IS 2830 – 1992 Carbon % Manganese%
C-15 0.12-0.18 0.30-0.60
C-18 0.15-0.21 0.30-0.60
C-20 0.17-0.23 0.30-0.60
C-15MMn 0.12-0.18 0.60-1.00
C-18MMn 0.15-0.21 0.60-1.00
C-20MMn 0.17-0.23 0.60-1.00
C-15HMn 0.12-0.18 1.00-1.50
C-18HMn 0.15-0.21 1.00-1.50
C-20HMn 0.17-0.23 1.00-1.50