UOE LSAW鋼管 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.
仕様
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スロー鋼管は、 中国における溶接大径縦サブマージアーク(SAWL)パイプの生産ラインです。 ミル等均等に分布形成応力、寸法の高い均一性、無限の大きさの変化&広いpoduct範囲、及び高い柔軟性を、特徴、プログレッシブ曲げ加工を採用しています
仕様
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
直径アウト |
壁厚さ(mm) |
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インチ |
ミリメートル |
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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外径や肉厚の公差
タイプ | 標準 | |||||
SY / T5040-2000 | SY / T5037-2000 | SY / T9711.1-1977 | ASTM A252 | AWWA C200-97 | API 5L PSL1 | |
管端OD偏差 | D±0.5% | D±0.5% | -0.79mm~+2.38mm | <0.1%T± | <0.1%T± | ±1.6ミリメートル |
壁の厚さ | 10.0%Tを± | D <508ミリメートル、12.5%Tを± | -8%T~+19.5%T | <-12.5%T | -8%T~+19.5%T | 5.0ミリメートル<T <15.0ミリメートル、0.11± |
D> 508ミリメートル、10.0%Tを± | T≥15.0mm、±1.5ミリメートル |
化学組成と機械的性質
標準 | グレード | 化学組成(最大)% | 機械的特性(分) | |||||
C | マンガン | Siの | S | P | 降伏強度(MPa) | 引張強度(MPa) | ||
GB / T700-2006 | A | 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 | |
D | 0.17 | 1.4 | 0.35 | 0.035 | 0.035 | 235 | 370 | |
GB / T1591-2009 | A | 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 | |
17100をDIN | 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の | SS400 | - | - | - | 0.050 | 0.050 | 235 | 400 |
SS490 | - | - | - | 0.050 | 0.050 | 275 | 490 | |
API 5L PSL1 | A | 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 |
軽く油を塗った、ホットディップは亜鉛メッキ、電気は、ブラック、ベア、ニス塗装/防錆油、保護コーティング亜鉛メッキ