Hot Rolled Steel Of Good Toughness / Easy Forming 0.7 - 20 mm Deep Drawing For Ship / Bridge / Building
Profile of hot rolled steel :
With High Strength , good Toughness , easy Processability and Excellent Welding Performance , The Hot-Rolled Products Of Dingang Metal Material Are Widely Used In Various Industries , Such As Marine , Automobile , Bridge , Construction , And Pressure Vessels.
Mainly Used As Various Substrates And Widely Applied In Automobile Manufacture , Cold Pressing Parts And Structural Parts Etc .
Specification :
Producing Standard : ASTM A 36 M , JIS G 3132 , DIN EN 10025
Steel Grade : SPHC SPHD SPHE SS300 SS400 SS490 SS540 ST33 ST37 - 2 ST37 - 3 ST44 - 2 ST50 - 2 ST52 - 3
HRB : 40 - 60
Oiled , Trimmed Edge , No Welding & Joint
Thickness : 0.70 - 20.0 mm
Width : 600 - 1250 mm
Length : 6 m Above
Coil Weight : 4 - 12 MTS
Inside Diameters : 508 mm
Outside Diameters : According To The Weight Of Coil
Chemical composition :
| Symbol of grade | Thickness ( mm ) | Chemical composition |
| C | Si ( < = ) | Mn ( < = ) | P ( < = ) | S ( < = ) | Al ( > = ) |
| SS300 | < = 12.7 | 0.15 | 0.3 | 0.95 | 0.035 | 0.035 | - |
| SS400 | < = 22.0 | 0.21 | 0.3 | 1.4 | 0.035 | 0.035 | - |
| SS490 | 1.6 - 16.0 | 0.22 | 0.25 | 1.4 | 0.035 | 0.035 | - |
| SS540 | 2.3 - 6.0 | 0.3 | 0.25 | 1.6 | 0.035 | 0.035 | - |
| ST33 | < = 13.0 | - | - | - | 0.040 | 0.040 | - |
| ST37-2 | < = 16.0 | 0.17 | 0.12 | 1.25 | 0.035 | 0.035 | 0.020 |
| ST37-3 | > 25.4 | 0.17 | 1.3 |
| ST44-2 | < 18.0 | 0.21 | 1.25 |
| ST50-2 | < 10.0 | 0.30 | 0.35 | 0.95 | - |
| ST52-3 | < = 25.4 | 0.20 | 0.35 | 1.6 | - |
Mechanical properties :
| Symbol of grade | Thickness ( MM ) | Mechanical properties |
| Yield stress MPA ( > = ) | Tensile strength MPA | Elongation % |
| < = 16 MM | > 16 MM | < = 5 MM | 5 - 16 MM | > 16 MM |
| SS300 | < = 12.7 | 205 | 195 | 300 - 430 | > = 26 | > = 21 | 26 |
| SS400 | < = 22.0 | 245 | 235 | 400 - 510 | > = 21 | > = 17 | 21 |
| SS490 | 1.6 - 16.0 | 285 | 275 | 490 - 610 | > = 19 | > = 15 | 19 |
| SS540 | 2.3 - 6.0 | 400 | 390 | > = 540 | > = 16 | > = 13 | 17 |
| Symbol of grade | Thickness ( MM ) | < = 16MM | > 16MM | < 3 MM | > = 3 MM | 1.5 - 2 MM | 2 - 2.5 MM | 2.5 - 3 MM |
| ST33 | < = 13.0 | - | 175 | 310 - 540 | 290 - 510 | > = 10 | > = 11 | > = 12 |
| ST37-2 | < = 16.0 | 235 | 225 | 360 - 510 | 340 - 470 | > = 17 | > = 18 | > = 19 |
| ST37-3 | > 25.4 | 235 | 225 | 360 - 510 | 340 - 470 | > = 17 | > = 18 | > = 19 |
| ST44-2 | < 18.0 | 275 | 265 | 430 - 580 | 410 - 540 | > = 14 | > = 15 | > = 16 |
| ST50-2 | < 10.0 | 295 | - | 490 - 660 | 470 - 610 | > = 12 | > = 13 | > = 14 |
| ST52-3 | < = 25.4 | 355 | 345 | 510 - 680 | 490 - 630 | > = 14 | > = 15 | > = 16 |
Application of hot rolled steel :
The hot - rolled forming steel could be classified into commercial quality ( CQ ) , deep drawing quality ( DDQ ) , and extra - deep drawing quality ( EDDQ ) by its intended application . With low carbon content , excellent drawing and welding performance , high dimension accuracy . Hot rolled forming steels are widely used in many drawing industries .
| Application | Feature | Steel Grades |
| Commercial Use | With some ductility , these steel are applied to simple forming , bending or welding | DD11 , SPHC |
| Drawing | With more ductility than commercial use steels,they are applied to manufacture parts through drawing and relatively complicated forming | DD12 , SPHD |
| Deep Drawing | With more ductility than drawing steels,they are applied to manufacture parts through deep and complicated forming | DD13 , SPHE |
| Extra - Deep Drawing | With more ductility than deep drawing steels , they are applied to manufacture parts through extra - deep and more complicated forming | DD14 , SPHF , BRC1 , BRC2 , BRC3 |
General structure steel has high strength and good formability , it can afford heavy load after common machining . the structure steel has reliable mechanical property , good formability and excellent welding performance , which is widely used in various industries , structure steel can be classified as normal structure steel,welding structure steel , tool steel and pipe steel .
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High Strength Hot Rolled Steel For Ship / Bridge / Building 20mm Thickness Images
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