HP series grade A shipbuilding steel bulb flat bar

HP series grade A shipbuilding steel bulb flat bar

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Description: BBN steel is a well-known steel manufacturer and service provider in China, HP series grade A shipbuilding steel bulb flat bar is our superior product, we are favored by customers with high quality, competitive price and excellent service

Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

Lead Time:

Quantity(Metric Tons) 1 - 10 10 - 50 >50
Est. Time(days) 5 10 Negotiable

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Product Introduction

HP series grade A shipbuilding steel bulb flat bar is a kind of medium profile steel which is mainly used in the field of shipbuilding. In recent years, with the rapid development of shipbuilding industry, the demand for marine bulb flat steel is strong. In the design of large ships and regular ships, most of the main hull is made of shipbuilding steel bulb flat bar, which is the same thickness and material as the connecting shipbuilding steel plate.

Executive standards of grade A shipbuilding steel bulb flat bar:
GB / T9945, EN10067, JIS G3192, ISO 657-19

HP series grade A shipbuilding steel bulb flat bar chemical composition:

C max Si max Mn P max S max C+Mn/6
0.21 0.50  ≥ 2.5xC 0.035 0.035 0.40

HP series grade A shipbuilding steel bulb flat bar mechanical properties:

Rm (MPa) Re(MPa) min A% min Akv/J min
400-520 235 21 E.T °C Thickness (mm)
20 ≤50 >50-70 >70-100
L C L C L C
- - 34 24 41 27

Specification of HP series grade A shipbuilding steel bulb flat bar:
The specification of HP series grade A shipbuilding steel bulb flat bar is generally divided according to the nominal width. The minimum specification is 8# (i.e. the nominal width is 80mm), and the maximum specification is 43# (the maximum nominal width is 430mm). Each specification has 2-5 different thicknesses.

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100% UT test

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50000J DWT TEST

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OES Chemical analysis

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X-ray test

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