Bulb Section

Short description

Bulb section is the rolled bulb section made of special steel (ship steel). This section is used as
a reinforcing rib when manufacturing of the large-scale structures of metal sheet while building of
the ship hulls.
It is the major component upon creation of reliable structures: (deck beams, skeletons of the ships, etc.) for different types of ships.

Unsymmetrical Bulb Section

Section designation	Section sizes, mm			Product Standard	Steel Grade
	H	S	Lenght	Product Standard	Steel Grade
5	50	4.0	4000 - 12000	GOST 21937-76,GOST 5521-93	РСА, РСБ, A, В, D, А32 ,D32, Е32, А36, D36 ,Е36, А40, D40, А40S, D40S
6	60	5
7	70	5
8	80	5
9	90	5,5
10	100	6
12	120	6,5
14a	140	7
14б	140	9
16a	160	8
16б	160	10		EN10067	GL-A, GL-B
18a	180	9
18б	180	11
20a	200	10
20б	200	12
22a	220	11
22б	220	13
24a	240	12
24б	240	14

Section designation	Section sizes, mm			Product Standard	Steel Grade
	H	S	Lenght	Product Standard	Steel Grade
80	80	6-7,0	6000 - 12000	DIN 1019, EN 10067	A, В, D, А32, D32, Е32, А36, D36, Е36, А40, D40, А40S, D40S
100	100	7-8,0
120	120	7-8,0
140	140	7-8,0
160	160	7-9,0
180	180	8-10,0
200	200	9-11,5
220	220	10-11,5
240	240	10-12,0

Symmetrical Bulb Section

Section designation	Section sizes, mm			Product Standard	Steel Grade
	H	S	Lenght
10	100	5,5	6000-9000	ГОСТ 9235-76,GOST 5521-93	A, B, D, A32-E32, A36-E36, A40, D40, A40S, D40S, 10ХНЗМД, 10ГНБ, 45Г17Ю3
35	350

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