Heavy Slab Technical Info

E250 & E350 Plate Plate Chemical Composition

Grade
Quality
Ladle Analysis, Percent, Max
Carbon Equivalent (CE), Max
Mode of Deoxidation
C
Mn
S
P
Si
E 250
A
0.23
1.50
0.045
0.045
0.040
0.42
Semi-killed/killed
E 250
BR
0.22
1.50
0.045
0.045
0.040
0.41
Semi-killed/killed
E 250
B0
0.22
1.50
0.045
0.045
0.040
0.41
Semi-killed/killed
E 350
C
0.20
1.55
0.040
0.040
0.45
0.45
Killed
E 250
C
0.20
1.50
0.040
0.040
0.040
0.39
Killed
E 350
BR
0.20
1.55
0.045
0.045
0.45
0.47
Semi-killed/killed
E 350
B0
0.20
1.55
0.045
0.045
0.45
0.47
Semi-killed/killed
E 350
C
0.20
1.55
0.040
0.040
0.45
0.45
Killed

E250 & E350 Plate Mechanical Properties

Grade
Quality
Tensile Strength (Rm , Min MPa1)
Yield Stress
Percentage Elongation A Min at Gauge Length, Lo=5.65
Internal Bend Diameter Min
Charpy Impact Test
<20
20-40
>40
≤25
>25
Temp Min oC
Min1
E 250
A
410
250
240
230
23
2r
3r
-
-
E 250
BR
410
250
240
230
23
2r
3r
RT
27
E 250
B0
410
250
240
230
23
2r
3r
0
27
E 250
C
410
250
240
230
23
2r
3r
(–) 20
27
E 350
A
490
350
330
320
22
2r
-
-
-
E 350
BR
490
350
330
320
22
2r
-
RT
25
E 350
B0
490
350
330
320
22
2r
-
0
27
E 350
C
490
350
330
320
22
2r
-
(–) 20
27