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| Brand Name : | Gnee Steel |
| Model Number : | ABS EH32 |
| Certification : | SGS ABS |
| Price : | 5000 $ |
| Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability : | 3000 Ton/Tons per Month |
Bulb Flat Sheet AH32 Grade Ball Flat Steel for Shipbuilding
Ball flat steel is a kind of medium profile mainly used in
shipbuilding and bridge fabrication, in which the marine ball flat
steel is used as auxiliary medium profile for shipbuilding. In
recent years, with the rapid development of shipbuilding industry,
the demand for marine ball flat steel is booming. Generally large
vessels and regular ships in the design of the main hull mostly use
the ship's ball flat steel, using the same thickness and material
of the same thickness and material of the connected sheet steel as
the bone material (also known as the bone or keel).
Standard of execution
At present, the domestic ball flat steel production mainly carries
out the GB/T9945-2012 "hot rolled ball flat steel" standard, and a
few enterprises in the European standard EN10067:1996 "hot rolled
ball flat steel size, shape, weight and allowable deviation",
similar to other standards also include JIS G3192, ISO 657-19.
Size
The size of the ball flat steel is generally divided according to
the nominal width, the minimum specification is 8# (that is, the
nominal width is 80mm), and the maximum specification is 43# (the
maximum nominal width is 430mm). Each specification has 2~5
different thickness.
| type | size(mm) | wight(kg/m) | ||||
| b | h | t | r1 | r | ||
50X4(5#) | 50 | 16 | 4 | 2.5 | ≤1.5 | 2.26 |
60X5(6#) | 60 | 19 | 5 | 3.5 | 3.38 | |
70X5(7#) | 70 | 21 | 5 | 3.5 | 4 | |
80X5(8#) | 80 | 22 | 5 | 4 | 4.61 | |
90X5.5(9#) | 90 | 24 | 5.5 | 4 | 5.55 | |
100X6(10#) | 100 | 26 | 6 | 5 | 6.81 | |
120X6.5(12#) | 120 | 30 | 6.5 | 5 | ≤2.0 | 8.78 |
140X7(14a) | 140 | 33 | 7 | 6 | 11.1 | |
140X9(14b) | 140 | 35 | 9 | 6 | 13.3 | |
160X8(16a) | 160 | 36 | 8 | 7 | 14.17 | |
180X9(18a) | 180 | 40 | 9 | 7 | ≤2.0 | 17.5 |
180X11(18b) | 180 | 42 | 11 | 7 | 20.32 | |
200X10(20a) | 200 | 44 | 10 | 8 | ≤3.0 | 21.58 |
200X12(20b) | 200 | 46 | 12 | 8 | 24.72 | |
220X11(22a) | 220 | 48 | 11 | 8.5 | 25.87 | |
220X13(22b) | 220 | 50 | 13 | 8.5 | 29.33 | |
240X12(24a) | 240 | 52 | 12 | 9 | 30.55 | |
240X14(24b) | 240 | 54 | 14 | 9 | 34.32 | |
270X12(27a) | 270 | 55 | 12 | 9.5 | 34.53 | |
270X14(27b) | 270 | 57 | 14 | 9.5 | 36 | |

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| Company Info. |
| Gnee Steel (tianjin) Co., Ltd. |
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