Le UOE PIPE EN ACIER 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.
Caractéristiques
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 STEEL PIPE est grand diamètre soudé à l' arc submergé longitudinal (SAWL) Ligne de production de tuyaux en Chine. Le moulin adopte le processus de pliage progressif, avec contrainte formation uniformément répartie, une grande uniformité de dimension, la taille infinie variation et large gamme de poduct, et une grande flexibilité, etc.
Caractéristiques
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
out Diamètre |
Épaisseur de paroi (mm) |
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Pouce |
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 |
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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Tolérance du diamètre extérieur et épaisseur de la paroi
Les types | la norme | |||||
SY / T5040-2000 | SY / T5037-2000 | SY / T9711.1-1977 | ASTM A252 | AWWA C200-97 | API 5L LSIP1 | |
Tube déviation extrémité OD | D ± 0,5% | D ± 0,5% | -0.79mm~+2.38mm | <± 0,1% T | <± 0,1% T | ± 1,6 mm |
épaisseur du mur | ± 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> 508mm, ± 10,0% T | T≥15.0mm, ± 1,5 mm |
Composition chimique et propriétés mécaniques
la norme | Qualité | Composition chimique (max)% | Propriétés mécaniques (min) | |||||
C | mn | Si | S | P | Limite d'élasticité (Mpa) | Résistance à la traction (Mpa) | ||
GB / T700-2006 | UNE | 0,22 | 1.4 | 0,35 | 0,050 | 0,045 | 235 | 370 |
B | 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 | |
ré | 0,17 | 1.4 | 0,35 | 0,035 | 0,035 | 235 | 370 | |
GB / T1591-2009 | UNE | 0,2 | 1.7 | 0,5 | 0,035 | 0,035 | 345 | 470 |
B | 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 | |
JIS G3101 | SS400 | - | - | - | 0,050 | 0,050 | 235 | 400 |
SS490 | - | - | - | 0,050 | 0,050 | 275 | 490 | |
API 5L LSIP1 | UNE | 0,22 | 0,9 | - | 0,03 | 0,03 | 210 | 335 |
B | 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 |
Huilées, galvanisé à chaud, Electro galvanisé, noir, nu, revêtement vernis / huile anti rouille, revêtements de protection