Bulb Flats
Application：
Bulb flats are the most efficient and economical solution for plate stiffening. The bulb flats are hot-rolled, high quality, reliable and necessarily we can provide products along with quality-passing certificates. They are manufactured by Chinese top steel mills with good reputation and products should pass extremely strict quality testing management. We provide you complete types and grades steel. The bulb flats are produced in accordance with GB/T 9945-2012 or EN 10067. The regular length of bulb flats is 4~12m, but if you have any specific requirements, we can customize products. In addition to bulb flats, we also supply marine steel plates, T-sections, H beams, steel channels, flat bars, half-round bars. If you are interested in our products, welcome to contact us!
Below is a list of sample grades we regularly provide:
Shipbuilding Steel
|
Strength |
Grade |
|
Normal Strength |
A B D E |
|
High Strength |
AH32 DH32 EH32 AH36 DH36 EH36 AH40 DH40 EH40 |
|
NOTE |
the above grades are certified by relevant classification societies, such as CCS, ABS, BV, LR, GL, RINA, KR, NK, CNV... |
Structural Steel
|
ASTM |
A572A Gr50 |
|
EN 10025 |
S235JR+AR |
|
S235J0+AR |
|
|
S235J2+AR |
|
|
S275JR+AR |
|
|
S275J0+AR |
|
|
S275J2+AR |
|
|
S355JR+AR |
|
|
S355J0+AR |
|
|
S355J2+AR |
|
|
S355M+AR |
Dimensions of Bulb Flats in accordance with EN 10067:
|
Nominal Size |
Dimensions for |
|||
|
b (mm) |
t (mm) |
c (mm) |
r (mm) |
|
|
80×5 80×6 |
80
|
5 6 |
14
|
4
|
|
100×7 100×8 |
100
|
7 8 |
15.5 |
4.5
|
|
120×6 120×7 120×8 |
120
|
6 7 8 |
17 |
5
|
|
140×7 140×8 140×10 |
140
|
7 8 10 |
19 |
5.5
|
|
160×7 160×8 160×9 160×11 |
160
|
7 8 9 11 |
22 |
6
|
|
180×8 180×9 180×10 180×11 |
180
|
8 19 10 11 |
25 |
7
|
|
200×9 200×10 200×11 200×12 |
200
|
9 10 11 12 |
28 |
8
|
|
220×10 220×11 220×12 |
220
|
10 11 12 |
31 |
9
|
|
240×10 240×11 240×12 |
240
|
10 11 12 |
34 |
10
|
Dimensions of Bulb Flats in accordance with GB/T 9945-2012:
|
Model |
Nominal Dimension mm |
Sectional Area cm2 |
Nominal Weight kg/m |
||||
|
b |
t |
h |
r1 |
r |
|||
|
80×5 |
80 |
5 |
19 |
4 |
≦1.5 |
5.41 |
4.25 |
|
80×6 |
80 |
6 |
20 |
4 |
≦2 |
6.21 |
4.88 |
|
100×7 |
100 |
7 |
22.5 |
4.5 |
≦2 |
8.74 |
6.86 |
|
100×8 |
100 |
8 |
23.5 |
4.5 |
≦2 |
9.74 |
7.65 |
|
120×6 |
120 |
6 |
23 |
5 |
≦2 |
9.32 |
7.32 |
|
120×7 |
120 |
7 |
24 |
5 |
≦2 |
10.52 |
8.26 |
|
120×8 |
120 |
8 |
25 |
5 |
≦2 |
11.72 |
9.20 |
|
140×7 |
140 |
7 |
26 |
5.5 |
≦2 |
12.43 |
9.75 |
|
140×8 |
140 |
8 |
27 |
5.5 |
≦2 |
13.93 |
10.85 |
|
140×10 |
140 |
10 |
29 |
5.5 |
≦3 |
16.63 |
13.05 |
|
160×7 |
160 |
7 |
29 |
6 |
≦2 |
14.60 |
11.46 |
|
160×8 |
160 |
8 |
30 |
6 |
≦2 |
16.20 |
12.72 |
|
160×9 |
160 |
9 |
31 |
6 |
≦2 |
17.80 |
13.97 |
|
160×11 |
160 |
11 |
33 |
6 |
≦3 |
21.00 |
16.49 |
|
180×8 |
180 |
8 |
33 |
7 |
≦2 |
18.86 |
14.80 |
|
180×9 |
180 |
19 |
34 |
7 |
≦2 |
20.66 |
16.22 |
|
180×10 |
180 |
10 |
35 |
7 |
≦3 |
22.46 |
17.63 |
|
180×11 |
180 |
11 |
36 |
7 |
≦3 |
24.26 |
19.04 |
|
200×9 |
200 |
9 |
37 |
8 |
≦2 |
23.66 |
18.57 |
|
200×10 |
200 |
10 |
38 |
8 |
≦3 |
25.66 |
20.14 |
|
200×11 |
200 |
11 |
39 |
8 |
≦3 |
27.66 |
21.71 |
|
200×12 |
200 |
12 |
40 |
8 |
≦3 |
29.66 |
23.28 |
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