La UOE TUBO DE ACERO LSAW mill features the most advanced technology and process, achieves high production efficiency, stable product quality and is equipped with complete inspection equipment. UOE mill adopts U & O forming, the formed pipes are welded inside through five internal welding stations with three wires, and welded outside through four external welding stations with three wires. In accordance with different requirements of the customers, the welded pipe can be expanded either by mechanical or hydrostatic expand to improve dimensional accuracy, and eliminate residual stress.
Presupuesto
Outside Diameter 508mm- 1118mm (20"- 44")
Wall Thickness: 6.0-25.4mm 1/4"-1"
Quality Standards: API、DNV、ISO、DEP、EN、ASTM、DIN、BS、JIS、GB、CSA
Length: 9-12.3m (30'- 40')
Grades: API 5L A-X90,GB/T9711 L190-L625
JOCE SLAW TUBO DE ACERO es de gran diámetro longitudinal arco sumergido soldada (SAWL) de la línea de producción de tuberías en China. El molino adopta proceso de plegado progresivo, con la tensión distribuida uniformemente formando, alta uniformidad de dimensión, infinito variación tamaños y gama poduct de ancho, y una alta flexibilidad, etc.
Presupuesto
Outside Diameter：Φ406mm- 1626mm (16" - 64" )
Wall Thickness：6.0- 75mm (1/4" - 3" )
Quality Standards：API、DNV、ISO、DEP、EN、ASTM、DIN、BS、JIS、GB、CSA
Length：3-12.5m ( 10'- 41' )
Grades：API 5L A-X100, GB/T9711 L190-L690
LSAW (Longitudinal double submerge arc welding) carbon steel pipe is a type of SAW pipe made of steel plates that were hot rolled by JCOE or UOE forming technology. JCOE technology represents the shaping and forming processes involved during manufacturing as well as the inner and outer welding and cold expansion carried out after welding.
LSAW pipe used to convey low pressure liquid or high pressure petroleum or natural gas, and can be also used widely in structural supports or foundation. The advantage for LSAW type is they could produce more thick wall thickness of pipes, maximum to 120mm.
Features:
- Large diameter steel pipes
- Thick walls
- High-Pressure resistance
- Low-temperature resistance
Tests:
- Chemical Component Analysis
- Mechanical Properties – Elongation, Yield Strength, Ultimate Tensile Strength
- Technical Properties – DWT Test, Impact Test, Blow Test, Flattening Test
- X-ray Test
- Exterior Size Inspection
- Hydrostatic Test
- UT Test
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Diámetro a cabo |
Espesor de pared (mm) |
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Pulgada |
mm |
6,4 |
7.1 |
7.9 |
9.53 |
12.7 |
14.3 |
15.9 |
19.1 |
22.2 |
25,4 |
28.6 |
31.8 |
34.9 |
38,1 |
41.3 |
44.5 |
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16 |
406,4 |
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18 |
457 |
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20 |
508 |
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22 |
559 |
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24 |
610 |
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26 |
660 |
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28 |
711 |
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30 |
762 |
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32 |
813 |
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34 |
864 |
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36 |
914 |
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38 |
965 |
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40 |
1016 |
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42 |
1067 |
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44 |
1118 |
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46 |
1168 |
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48 |
1219 |
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52 |
1321 |
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56 |
1422 |
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60 |
1524 |
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64 |
1626 |
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Tolerancia del diámetro exterior y el ancho de la pared
| tipos | Estándar | |||||
| SY / T5040-2000 | SY / T5037-2000 | SY / T9711.1-1977 | A252 ASTM | AWWA C200-97 | API 5L PSL1 | |
| Tubo de desviación OD final | ± 0,5% D | ± 0,5% D | -0.79mm～+2.38mm | <± 0,1% T | <± 0,1% T | ± 1,6 mm |
| espesor de pared | ± 10,0% T | D <508 mm, ± 12,5% T | -8%T～+19.5%T | <-12,5% T | -8%T～+19.5%T | 5.0mm <T <15.0mm, ± 0,11 |
| D> 508 mm, ± 10,0% T | T≥15.0mm, ± 1,5 mm | |||||
Composición química y propiedades mecánicas
| Estándar | Grado | Composición química (max)% | Propiedades mecánicas (min) | |||||
| C | Minnesota | Si | S | PAG | Límite elástico (Mpa) | Resistencia a la tracción (Mpa) | ||
| GB / T700-2006 | UNA | 0.22 | 1.4 | 0.35 | 0,050 | 0,045 | 235 | 370 |
| segundo | 0.2 | 1.4 | 0.35 | 0,045 | 0,045 | 235 | 370 | |
| C | 0.17 | 1.4 | 0.35 | 0,040 | 0,040 | 235 | 370 | |
| re | 0.17 | 1.4 | 0.35 | 0,035 | 0,035 | 235 | 370 | |
| GB / T1591-2009 | UNA | 0.2 | 1.7 | 0,5 | 0,035 | 0,035 | 345 | 470 |
| segundo | 0.2 | 1.7 | 0,5 | 0,030 | 0,030 | 345 | 470 | |
| C | 0.2 | 1.7 | 0,5 | 0,030 | 0,030 | 345 | 470 | |
| BS EN10025 | S235JR | 0.17 | 1.4 | - | 0,035 | 0,035 | 235 | 360 |
| S275JR | 0.21 | 1.5 | - | 0,035 | 0,035 | 275 | 410 | |
| S355JR | 0.24 | 1,6 | - | 0,035 | 0,035 | 355 | 470 | |
| DIN 17100 | St37-2 | 0.2 | - | - | 0,050 | 0,050 | 225 | 340 |
| ST44-2 | 0.21 | - | - | 0,050 | 0,050 | 265 | 410 | |
| St52-3 | 0.2 | 1,6 | 0.55 | 0,040 | 0,040 | 345 | 490 | |
| G3101 JIS | SS400 | - | - | - | 0,050 | 0,050 | 235 | 400 |
| SS490 | - | - | - | 0,050 | 0,050 | 275 | 490 | |
| API 5L PSL1 | UNA | 0.22 | 0.9 | - | 0,03 | 0,03 | 210 | 335 |
| segundo | 0,26 | 1.2 | - | 0,03 | 0,03 | 245 | 415 | |
| X42 | 0,26 | 1.3 | - | 0,03 | 0,03 | 290 | 415 | |
| X46 | 0,26 | 1.4 | - | 0,03 | 0,03 | 320 | 435 | |
| X52 | 0,26 | 1.4 | - | 0,03 | 0,03 | 360 | 460 | |
| X56 | 0,26 | 1.1 | - | 0,03 | 0,03 | 390 | 490 | |
| X60 | 0,26 | 1.4 | - | 0,03 | 0,03 | 415 | 520 | |
| X65 | 0,26 | 1.45 | - | 0,03 | 0,03 | 450 | 535 | |
| X70 | 0,26 | 1.65 | - | 0,03 | 0,03 | 585 | 570 | |
Ligeramente aceitado, galvanizado por inmersión en caliente, galvanizado electro, negro, desnudo, recubrimiento de barniz / aceite anti óxido, revestimientos protectores
