ship building steel bulb flat

Bulb plate is one kind of mid structural steel, applying in shipbuilding and bridging industry. In recent years, as rapid development of shipbuilding, there is a large-quantity market demand in bulb plate. It is the important material for vessel’s keel corresponding to steel plate for main body.
  
Executive standard: GB/T9945-2001, EN10067:1996, JIS G3192、ISO 657-19
Grade: ordinary strength (A, B and D); high strength (AH32, AH36, DH32, and DH36).
Different plates authenticated by different classification societies shall correspondingly choose bulb plates.
Approved by CCS GL DNV LR NK KR RINA ABS (ASTM A131) and BV Authentication Classification society

Standard sectional dimentions of hot rolled bulb flat(GB/T9945-2001)
Model	Size					Sectional Area (㎡)	Theoretical Weight (kg/m)	Center of Gravity (dx/cm)	X-X Characteristic Values
	b	t	h	r1	r				IX/cm4	Wx/cm³
HP340×12	340	12	61	15	≤3	58.84	46.20	21.69	6,575	313
HP340×13	340	13	62	15		62.24	48.86	21.34	7,152	335
HP340×14	340	14	63	15	≤4	65.54	51.50	21.10	7,540	357
HP370×13	370	13	66.5	16.5	≤3	69.70	54.70	23.54	9,469	402
HP370×14	370	14	67.5	16.5	≤4	73.40	57.60	23.29	9,980	429
HP370×15	370	15	68.5	16.5		77.10	60.50	23.06	10,483	456
HP400×14	400	14	72	18		81.48	63.96	25.49	12,924	507
HP400×15	400	15	73	18		85.48	67.10	25.24	13,573	538
HP400×16	400	16	74	18		89.48	70.20	25.00	14,211	568
HP430×14	430	14	76.5	19.5		89.70	70.60	27.70	16,460	594
HP430×15	430	15	77.5	19.5		94.19	73.90	27.46	17,249	629
HP430×17	430	17	79.5	19.5		102.79	80.70	26.95	18,853	700
HP430×19	430	19	81.5	19.5		111.39	87.40	26.53	20,413	770
HP430×20	430	20	82.5	19.5		115.00	90.80	26.30	21,180	804
Materiral	A/B/AH32/AH36/D/DH32/DH36

Standard sectional dimentions of hot rolled bulb (GB/T9945-2001)
Model	Size					Sectional Area (㎡)	Theoretical Weight (kg/m)	Center of Gravity (dx/cm)	X-X Characteristic Values
	b	t	h	r1	r				IX/cm4	Wx/cm³
HP50×4	50	16	4	2.5	≤1.5	2.87	2.26	3.13	6.88	2.36
HP60×5	60	19	5	3.5		4.31	3.38	3.75	14.73	4.21
HP70×5	70	21	5	3.5		5.09	4.00	4.42	23.97	5.93
HP80×5	80	22	5	4		5.87	4.61	5.08	36.22	7.96
HP90×5.5	90	24	5.5	4		7.07	5.55	5.66	55.86	10.97
HP100×6	100	26	6	5		8.67	6.81	6.31	84.08	14.88
HP120×6.5	120	30	6.5	5	≤2.0	11.19	8.78	7.57	158.20	23.54
HP140×7	140	33	7	6		14.13	11.10	8.86	272.23	34.95
HP140×9	140	35	9	6		16.93	13.30	8.55	326.05	41.59
HP160×8	160	36	8	7		18.04	14.17	10.02	455.35	51.45
HP160×10	160	38	10	7		21.24	16.68	9.72	534.73	60.01
HP180×9	180	40	9	7		22.28	17.50	11.16	716.85	72.26
HP180×11	180	42	11	7		25.88	20.32	10.86	828.50	83.02
HP200×10	200	44	10	8	≤3.0	27.47	21.58	12.39	1,089.90	98.90
HP200×12	200	46	12	8		31.47	24.72	12.08	1,243.10	112.93
HP220×11	220	48	11	8.5		32.94	25.87	13.57	1,584.10	130.92
HP220×13	220	50	13	8.5		37.34	29.33	13.27	1,787.20	146.97
HP240×12	240	52	12	9		38.91	30.55	14.75	2,229.60	169.04
HP240×14	210	54	14	9		43.71	34.32	14.45	2,492.40	188.25
HP270×12	270	55	12	9.5		43.92	34.53	16.66	3,206.50	217.83
HP270×14	270	57	14	9.5		49.37	38.77	16.31	3,582.50	201.49
Materiral	A/B/AH32/AH36/D/DH32/DH36

Standard sectional dimentions of hot rolled bulb flat steel
Model	Size					Sectional Area (㎡)	Theoretical Weight (kg/m)	Center of Gravity (dx/cm)	X-X Characteristic Values
	b	t	h	r1	r				IX/cm4	Wx/cm³
HP80×5	80	5	19	4		5.41	4.25	4.90	33.87	6.91
HP80×6	80	6	20	4	≤1.5	6.21	4.88	4.78	38.70	8.10
HP100×7	100	7	22.5	4.5	≤2	8.74	6.86	5.87	85.30	14.50
HP100×8	100	8	23.5	4.5		9.74	7.65	5.78	94.30	16.31
HP120×6	120	6	23	5		9.32	7.32	7.21	133	18.50
HP120×7	120	7	24	5		10.52	8.26	7.07	149	21.00
HP120×8	120	8	25	5		11.72	9.20	6.96	165	23.60
HP140×7	140	7	26	5.5		12.43	9.75	8.32	241	29.00
HP140×8	140	8	27	5.5		13.83	10.85	8.18	266	32.50
HP140×10	140	10	29	5.5	≤3	16.63	13.05	7.99	315	39.50
HP160×7	160	7	29	6	≤2	14.60	11.46	9.66	373	38.60
HP160×8	160	8	30	6		16.20	12.72	9.50	411	43.30
HP160×9	160	9	31	6		17.80	13.97	9.37	449	47.90
HP160×11	160	11	33	6	≤3	21.00	16.49	9.16	522	57.00
HP180×8	180	8	33	7	≤2	18.86	14.80	10.89	609	55.90
HP180×9	180	9	34	7		20.66	16.22	10.73	664	61.80
HP180×10	180	10	35	7	≤3	22.46	17.63	10.59	717	67.70
HP180×11	180	11	36	7		24.26	19.04	10.47	770	73.50
HP200×9	200	9	37	8	≤2	23.66	18.57	12.12	942	77.70
HP200×10	200	10	38	8	≤3	25.66	20.14	11.96	1,017	85.10
HP200×11	200	11	39	8		27.66	21.71	11.82	1,091	92.30
HP200×12	200	12	40	8		29.66	23.28	11.69	1,164	99.50
HP220×10	220	10	41	9		29.00	22.77	13.35	1,396	105.00
HP220×11	220	11	42	9		31.20	24.50	13.19	1,496	114.00
HP220×12	220	12	43	9		33.40	26.22	13.04	1,595	122.00
HP240×10	240	10	44	10		32.49	25.50	14.77	1,865	126.00
HP240×11	240	11	45	10		34.89	27.39	14.58	1,997	137.00
HP240×12	240	12	46	10		37.29	29.27	14.42	2,127	148.00
HP260×10	260	10	47	11		36.11	28.35	16.22	2,434	150.00
HP260×11	260	11	48	11		38.71	30.39	16.00	2,605	163.00
HP260×12	260	12	49	11		41.31	32.43	15.81	2,774	175.00
HP280×11	280	11	51	12		42.68	33.50	17.44	3,333	191.00
HP280×12	280	12	52	12		45.48	35.70	17.23	3,647	206.00
HP280×13	280	13	53	12		48.28	37.90	17.04	3,757	221.00
HP300×11	300	11	54	13		46.78	36.70	18.90	4,192	222.00
HP300×12	300	12	55	13		49.79	39.09	18.70	4,459	239.00
HP300×13	300	13	56	13		52.79	41.44	18.45	4,722	256.00
HP320×12	320	12	58	14		54.25	42.60	20.12	5,525	275.00
HP320×13	320	13	59	14		57.25	45.09	19.89	5,849	294.00
HP320×14	320	14	60	14	≤4	60.85	47.60	19.68	6,168	313.00
Materiral	A/B/AH32/AH36/D/DH32/DH36