Shipbuilding Bulb Flats - Marine Steel Sections - Hi-sea

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Shipbuilding Bulb Flats

Shipbuilding Bulb Flats

Application:

It’s a good option for shipyard to choose bulb plates as the main structure of ships due to their excellent strength and light weight. They feature a unique shape--flat, with a short, tapered flange on one side--which provide significant benefits in shipbuilding stiffener application.They are regarded as economical, efficient, and reliable by peers. These bulb flats are manufactured strictly in accordance with GB/T 9945-2012 or EN10067 by Chinese excellent steel mills of make good quality. We provide you complete steel grades and dimensions. If you have any specific requirements, we will try our best to satisfy you.

Advantages of Hi-Sea:

1. We guarantee the products’ quality.

Our shipbuilding bulb flats are produced by Chinese top steel mills complying with extremely strict quality management. Our bulb flats are made of standard steel with tiny tolerances. The production of steel follows the requirements of GB9945-2012 or EN10067:1997.

2. We provide a wide range of steel grades and dimensions.

We are able to provide bulb flats made of steel grade from A, B, D, E under the temperature of 0℃, -20℃ and -40℃. The dimensional range is from nominal size 80×5mm to 430×20mm. The regular length of bulb flats is in the range of 40~120m.

3. We provide you considerate service.

We have rich experience in importing and exporting marine products as well as we can guarantee delivery on time.

The following table shows steel grades that we provide regularly for bulb flats:

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


Parameters of GB 9945-2012 Shipbuilding Bulb Flats

Parameters of EN10067 Shipbuilding Bulb Flats

Adopted Standard

Steel Grade

ABS Grade

AB/A, AB/AN, AB/B, AB/BN, AB/D, AB/DN, AB/E, AB/EN

BV Grade

BVA, BVB, BVD, BVE

CCS Grade

CCSA, CCSB, CCSD, CCSE

DNV Grade

NV A, NV B, NV D, NV E

GL Grade

GL-A, GL-ATM, GL-B, GL-BTM, GL-D, GL-DTM, GL-E, GL-ETM

KR Grade

KRA, KRB, KRD, KRE

LR Grade

LRA, LRB, LRD, LRE

NK Grade

KA, KB, KD, KE

RINA Grade

RINA-A, RINA-B, RINA-D, RINA-E

Adopted Standard

Steel Grade

ABS Grade

AB/AH32, AB/AH32N, AB/DH32, AB/DH32N, AB/EH32, AB/EH32N, AB/FH32, AB/FH32N, AB/AH36, AB/AH36N, AB/DH36, AB/DH36N, AB/EH36, AB/EH36N, AB/FH36, AB/FH36N, AB/AH40, AB/AH40N, AB/DH40, AB/DH40N, AB/EH40, AB/EH40N, AB/FH40, AB/FH40N

BV Grade

BVAH32, BVDH32, BVEH32, BVFH32, BVAH36, BVDH36, BVEH36, BVFH36, BVAH40, BVDH40, BVEH40, BVFH40

CCS Grade

CCSAH32, CCSDH32, CCSEH32, CCSFH32, CCSAH36, CCSDH36, CCSEH36, CCSFH36, CCSAH40, CCSDH40, CCSEH40, CCSFH40

DNV Grade

NV A32, NV D32, NV E32, NV F32, NV A36, NV D36, NV E36, NV F36, NV A40, NV D40, NV E40, NV F40

GL Grade

GL-A32, GL-A32TM, GL-D32, GL-D32TM, GL-E32, GL-E32TM, GL-F32, GL-F32TM, GL-A36, GL-A36TM, GL-D36, GL-D36TM, GL-E36, GL-E36TM, GL-F36, GL-F36TM, GL-A40, GL-A40TM, GL-D40, GL-D40TM, GL-E40, GL-E40TM, GL-F40, GL-F40TM

KR Grade

KRAH32, KRDH32, KREH32, KRFH32, KRAH36, KRDH36, KREH36, KRFH36, KRAH40, KRDH40, KREH40, KRFH40

LR Grade

LRAH32, LRDH32, LREH32, LRFH32, LRAH36, LRDH36, LREH36, LRFH36, LRAH40, LRDH40, LREH40, LRFH40

NK Grade

KA32, KD32, KE32, KF32, KA36, KD36, KE36, KF36, KA40, KD40, KE40, KF40

RINA Grade

RINA-AH32, RINA-DH32, RINA-EH32, RINA-FH32, RINA-AH36, RINA-DH36, RINA-EH36, RINA-FH36, RINA-AH40, RINA-DH40, RINA-EH40, RINA-FH40


Angle steel in factory:

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