Grade B flat bulb steel is in Section A is mainly used in shipbuilding, in recent years, with the rapid development of the shipbuilding industry, Grade B flat bulb steel demand. Generally larger ships and regular ship in the design of the main hull mostly uses the Grade B flat bulb steel, using the same material is connected with the plate thickness and the Grade B flat bulb steel as the aggregate
Grade B flat bulb steel Specifications
Standard: EN10067:1996
Specification: HP80-HP320
Material: Grade B
Length: 4-12M
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| Specifications |
Nominal Dimmenision/mm |
Section Area |
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| b |
h |
t |
rl |
r |
Theoretical Weight |
| 80x5 |
80 |
5 |
19 |
4 |
≤1.5 |
5.41 |
4.25 |
| 80x6 |
80 |
6 |
20 |
4 |
≤2 |
6.21 |
4.88 |
| 100x7 |
100 |
7 |
22.5 |
4.5 |
≤2 |
8.71 |
6.86 |
| 100x8 |
100 |
8 |
23.5 |
4.5 |
9.74 |
7.65 |
| 120x6 |
120 |
6 |
23 |
5 |
≤2 |
9.32 |
7.32 |
| 120x7 |
120 |
7 |
24 |
5 |
10.52 |
8.26 |
| 120x8 |
120 |
8 |
25 |
5 |
11.72 |
9.2 |
| 140x7 |
140 |
7 |
26 |
5.5 |
≤2 |
12.43 |
9.75 |
| 140x8 |
140 |
B |
27 |
5.5 |
≤2 |
13.83 |
10.85 |
| 140x10 |
140 |
10 |
29 |
5.5 |
≤3 |
16.63 |
13.05 |
| 160x7 |
160 |
7 |
29 |
6 |
≤2 |
14.6 |
11.46 |
| 160x8 |
160 |
8 |
30 |
6 |
≤2 |
16.2 |
12.72 |
| 160x9 |
160 |
9 |
31 |
6 |
≤2 |
17.8 |
13.97 |
| 160x11 |
160 |
11 |
33 |
6 |
≤3 |
21 |
16.49 |
| 180x8 |
180 |
8 |
33 |
7 |
≤2 |
18.86 |
14.8 |
| 180x9 |
180 |
9 |
34 |
7 |
≤2 |
20.66 |
16.22 |
| 180xl0 |
180 |
10 |
35 |
7 |
≤2 |
22.15 |
17.63 |
| 180x11 |
180 |
11 |
36 |
7 |
≤3 |
24.26 |
19.04 |
| 200x9 |
200 |
9 |
37 |
B |
≤2 |
23.66 |
18.57 |
| 200xl0 |
200 |
10 |
38 |
8 |
≤3 |
25.66 |
20.14 |
| 200x11 |
200 |
11 |
39 |
8 |
≤3 |
27.66 |
21.71 |
| 200x12 |
200 |
12 |
40 |
8 |
≤3 |
29.66 |
23.28 |
| 220x10 |
220 |
10 |
41 |
9 |
≤3 |
29 |
22.77 |
| 220x11 |
220 |
11 |
42 |
9 |
≤3 |
31.2 |
24.5 |
| 220x12 |
220 |
12 |
43 |
9 |
≤3 |
33.4 |
26.22 |
| 240x10 |
240 |
10 |
44 |
10 |
≤3 |
32.49 |
25.5 |
| 240x11 |
240 |
11 |
45 |
10 |
≤3 |
31.89 |
27.39 |
| 240x12 |
240 |
12 |
46 |
10 |
≤3 |
37.29 |
29.27 |
| 260x10 |
260 |
10 |
47 |
11 |
≤3 |
36.11 |
28.35 |
| 260x11 |
260 |
11 |
48 |
11 |
≤3 |
38.71 |
30.39 |
| 260x12 |
260 |
12 |
49 |
11 |
≤3 |
11.31 |
32.43 |
| 280x11 |
280 |
11 |
51 |
12 |
≤3 |
42.68 |
33.5 |
| 280x12 |
280 |
12 |
52 |
12 |
≤3 |
45.48 |
35.7 |
| 280x13 |
280 |
13 |
53 |
12 |
≤3 |
18.28 |
37.9 |
| 300x11 |
300 |
11 |
54 |
13 |
≤3 |
46.78 |
36.7 |
| 300xl2 |
300 |
12 |
55 |
13 |
≤3 |
49.79 |
39.09 |
| 300x13 |
300 |
13 |
56 |
13 |
≤3 |
52.79 |
41.44 |
| 320x12 |
320 |
12 |
58 |
14 |
≤3 |
54.25 |
42.6 |
| 320x13 |
320 |
13 |
59 |
14 |
≤3 |
57.25 |
45.09 |
| 320x14 |
320 |
14 |
60 |
14 |
≤4 |
60.85 |
47.6 |
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