Chinese Standard Bulb Flats

Chinese Standard Bulb Flats

Application:

The Chinese bulb flats are steel sections made of marine steel according to Chinese standard GB/T 9945-2012. They are the better choice for ship planking reinforcement due to their excellent weight ratio and the fact that their shape prevents corrosive debris. Up to 20% of the ship’s hull steel could possibly employ these sections and they can be used in both commercial and military vessels. The bulb flats are made of steel complying with the standard of shipbuilding classification societies, and steel grades CCSA, CCSB, CCSD, CCSE, AH32, AH36, AH40, DH32, DH36, DH40, EH32, EH36, EH40 are also available for you. Besides, we are capable of providing various dimensions. The length of bulb flats can be customized as you require. If you are interested in our bulb flats, welcome to contact us. If you have any questions, please feel free to contact us.

Available Steel Grades:

Adopted Standard	Steel Grades
ABS Grade	AB/A, AB/AN, AB/B, AB/BN, AB/D, AB/DN, AB/E, AB/EN, AB/AH32, AB/AH32N, AB/DH32, AB/DH32N, AB/EH32, AB/EH32N, AB/AH36, AB/AH36N, AB/DH36, AB/DH36N, AB/EH36, AB/EH36N, AB/AH40, AB/AH40N, AB/DH40, AB/DH40N, AB/EH40, AB/EH40N
BV Grade	BVA, BVB, BVD, BVE, BVAH32, BVDH32, BVEH32, BVAH36, BVDH36, BVEH36, BVAH40, BVDH40, BVEH40
CCS Grade	CCSA, CCSB, CCSD, CCSE, CCSAH32, CCSDH32, CCSEH32, CCSAH36, CCSDH36, CCSEH36, CCSAH40, CCSDH40, CCSEH40
DNV-GL Grade	NV A, NV B, NV D, NV E, NV A32, NV D32, NV E32, NV A36, NV D36, NV E36, NV A40, NV D40, NV E40
GL Grade	GL-A, GL-ATM, GL-B, GL-BTM, GL-D, GL-DTM, GL-E, GL-ETM, GL-A32, GL-A32TM, GL-D32, GL-D32TM, GL-E32, GL-E32TM, GL-A36, GL-A36TM, GL-D36, GL-D36TM, GL-E36, GL-E36TM, GL-A40, GL-A40TM, GL-D40, GL-D40TM, GL-E40, GL-E40TM
KR Grade	KRA, KRB, KRD, KRE, KRAH32, KRDH32, KREH32, KRAH36, KRDH36, KREH36, KRAH40, KRDH40, KREH40
LR Grade	LRA, LRB, LRD, LRE, LRAH32, LRDH32, LREH32, LRAH36, LRDH36, LREH36, LRAH40, LRDH40, LREH40
NK Grade	KA, KB, KD, KE, KA32, KD32, KE32, KA36, KD36, KE36,, KA40, KD40, KE40
RINA Grade	RINA-A, RINA-B, RINA-D, RINA-E, RINA-AH32, RINA-DH32, RINA-EH32, RINA-AH36, RINA-DH36, RINA-EH36, RINA-AH40, RINA-DH40, RINA-EH40

Dimensions:

Model	Nominal Dimension mm					Sectional Area cm²	Nominal Weight kg/m
Model	b	t	h	r₁	r	Sectional Area cm²	Nominal Weight kg/m
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
220×10	220	10	41	9	≦3	29.00	22.77
220×11	220	11	42	9	≦3	31.20	24.50
220×12	220	12	43	9	≦3	33.40	26.22
240×10	240	10	44	10	≦3	32.49	25.50
240×11	240	11	45	10	≦3	34.89	27.39
240×12	240	12	46	10	≦3	37.29	29.27
260×10	260	10	47	11	≦3	36.11	28.35
260×11	260	11	48	11	≦3	38.71	30.39
260×12	260	12	49	11	≦3	41.31	32.43
280×11	280	11	51	12	≦3	42.68	33.50
280×12	280	12	52	12	≦3	45.48	35.70
280×13	280	13	53	12	≦3	48.28	37.90
300×11	300	11	54	13	≦3	46.78	36.70
300×12	300	12	55	13	≦3	49.79	39.09
300×13	300	13	56	13	≦3	52.79	41.44
320×12	320	12	58	14	≦3	54.25	42.60
320×13	320	13	59	14	≦3	57.25	45.09
320×14	320	14	60	14	≦4	60.85	47.60
340×12	340	12	61	15	≦3	58.84	46.20
340×13	340	13	62	15	≦3	62.24	48.86
340×14	340	14	63	15	≦4	65.54	51.50
370×13	370	13	66.5	16.5	≦3	69.70	54.70
370×14	370	14	67.5	16.5	≦4	73.40	57.60
370×15	370	15	68.5	16.5	≦4	77.10	60.50
400×14	400	14	72	18	≦4	81.48	63.96
400×15	400	15	73	18	≦4	85.48	67.10
400×16	400	16	74	18	≦4	89.48	70.20
430×14	430	14	76.5	19.5	≦4	89.70	70.60
430×15	430	15	77.5	19.5	≦4	94.19	73.90
430×17	430	17	79.5	19.5	≦4	102.79	80.70
430×19	430	19	81.5	19.5	≦4	111.39	87.40
430×20	430	20	82.5	19.5	≦4	115.00	90.80

Dimensions:

Model	Nominal Dimension mm
Model	b	t	h	r₁	r
80×5	80	5	19	4	≦1.5
80×6	80	6	20	4	≦2
100×7	100	7	22.5	4.5	≦2
100×8	100	8	23.5	4.5	≦2
120×6	120	6	23	5	≦2
120×7	120	7	24	5	≦2
120×8	120	8	25	5	≦2
140×7	140	7	26	5.5	≦2
140×8	140	8	27	5.5	≦2
140×10	140	10	29	5.5	≦3
160×7	160	7	29	6	≦2
160×8	160	8	30	6	≦2
160×9	160	9	31	6	≦2
160×11	160	11	33	6	≦3
180×8	180	8	33	7	≦2
180×9	180	19	34	7	≦2
180×10	180	10	35	7	≦3
180×11	180	11	36	7	≦3
200×9	200	9	37	8	≦2
200×10	200	10	38	8	≦3
200×11	200	11	39	8	≦3
200×12	200	12	40	8	≦3
220×10	220	10	41	9	≦3
220×11	220	11	42	9	≦3
220×12	220	12	43	9	≦3
240×10	240	10	44	10	≦3
240×11	240	11	45	10	≦3
240×12	240	12	46	10	≦3
260×10	260	10	47	11	≦3
260×11	260	11	48	11	≦3
260×12	260	12	49	11	≦3
280×11	280	11	51	12	≦3
280×12	280	12	52	12	≦3
280×13	280	13	53	12	≦3
300×11	300	11	54	13	≦3
300×12	300	12	55	13	≦3
300×13	300	13	56	13	≦3
320×12	320	12	58	14	≦3
320×13	320	13	59	14	≦3
320×14	320	14	60	14	≦4
340×12	340	12	61	15	≦3
340×13	340	13	62	15	≦3
340×14	340	14	63	15	≦4
370×13	370	13	66.5	16.5	≦3
370×14	370	14	67.5	16.5	≦4
370×15	370	15	68.5	16.5	≦4
400×14	400	14	72	18	≦4
400×15	400	15	73	18	≦4
400×16	400	16	74	18	≦4
430×14	430	14	76.5	19.5	≦4
430×15	430	15	77.5	19.5	≦4
430×17	430	17	79.5	19.5	≦4
430×19	430	19	81.5	19.5	≦4
430×20	430	20	82.5	19.5	≦4

Bulb flat in factory:

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