Sindara Steel Co.,Ltd
| Payment Terms | L/C , T/T , D/P , OA |
| Supply Ability | 500 tons per day |
| Delivery Time | within 10-30 days and depend on your order quantity |
| Packaging Details | Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped |
| Outer Diameter | 355.6mm-2320mm |
| Wall Thickness | 7-50mm |
| Length | 5.8m-12m |
| Ends | Black ends / Beveled ends / Plain ends |
| Surface Treatment | Bare, Black Painting, Varnished, Galvanized, Anti-corrosion coating |
| Application | Used for oil and gas, water transmission, engineering, offshore projects |
| Brand Name | Sindara |
| Certification | ISO 9001, ISO 14001, ISO 45001, CE |
| Place of Origin | Hunan |
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Product Specification
| Payment Terms | L/C , T/T , D/P , OA | Supply Ability | 500 tons per day |
| Delivery Time | within 10-30 days and depend on your order quantity | Packaging Details | Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped |
| Outer Diameter | 355.6mm-2320mm | Wall Thickness | 7-50mm |
| Length | 5.8m-12m | Ends | Black ends / Beveled ends / Plain ends |
| Surface Treatment | Bare, Black Painting, Varnished, Galvanized, Anti-corrosion coating | Application | Used for oil and gas, water transmission, engineering, offshore projects |
| Brand Name | Sindara | Certification | ISO 9001, ISO 14001, ISO 45001, CE |
| Place of Origin | Hunan | ||
| High Light | DSAW Steel Pipe API ，DSAW Steel Pipe ASTM ，Double Submerged Arc Welded Pipe | ||
Product Name : DSAW Steel pipe
Size :
Outer Diameter: 355.6mm-2320mm
Wall Thickness: 7-50mm
Length: 5.8m / 6m / 11.8m / 12m / 18m / 32m
Standard :
API 5L PSL1 / PSL2 Gr.A , Gr.B , X42, X46 , X52 , X56 , X60 , X65 , X70
ASTM A53 / A252 / A500 / A672 / A691 / A139
EN10025 / EN10210 / EN10219 / EN10217 / EN10208 / EN10297
AS1163 / JIS G3457 / JIS G3101
DIN 17100
Ends : Black ends / Bevelled ends / Plain ends
Surface Treatment : Bare , Black Painting , Varnished , Galvanized , Anti-corrosion coating , etc .
Application: Used for oil and gas , water transmission , engineering , offshore projects .
LSAW ( Longitudinally Submerged Arc Welding ) Pipe can be divided into UOE and JCOE pipe according to its processing methods . LSAW steel pipe has the characteristics of relatively simple process and fast continuous production , and has widely used in oil and gas , water transmission , engineering , offshore projects .
Features of LSAW Steel Pipe
- Large diameter
- Thick wall
- High Pressure resistance
| UOE LSAW Pipe |
| Outside Diameter : Φ508mm - 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 |
| JCOE LSAW Pipe |
| 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 |
Specification
| O.D. | W.T. | Length ( m ) | |||||||
| Inch | mm | Min.Yield Strength ( Mpa ) | |||||||
| Inch | mm | 245(B) | 290(X42) | 360(X52) | 415(X60) | 450(X65) | 485(X70) | 555(X80) | |
| 16 | 406 | 6.0-14.0 | 6.0-13.0 | 6.0-12.0 | 6.0-11.0 | 6.0-10.5 | 6.0-10.0 | 6.0-9.0 | 6.0-12.3 |
| 18 | 457 | 6.0-15.0 | 6.0-14.0 | 6.0-13.0 | 6.0-12.0 | 6.0-11.5 | 6.0-11.0 | 6.0-10.0 | 6.0-12.3 |
| 20 | 508 | 6.0-16.0 | 6.0-15.0 | 6.0-14.0 | 6.0-13.0 | 6.0-12.5 | 6.0-12.0 | 6.0-11.0 | 6.0-12.3 |
| 22 | 559 | 6.0-17.0 | 6.0-16.0 | 6.0-15.0 | 6.0-14.0 | 6.0-13.5 | 6.0-13.0 | 6.0-12.0 | 6.0-12.3 |
| 24 | 610 | 6.0-18.0 | 6.0-17.0 | 6.0-16.0 | 6.0-15.0 | 6.0-14.5 | 6.0-14.0 | 6.0-13.0 | 6.0-12.3 |
| 26 | 660 | 6.0-19.0 | 6.0-18.0 | 6.0-17.0 | 6.0-16.0 | 6.0-15.0 | 6.0-15.0 | 6.0-14.0 | 6.0-12.3 |
| 28 | 711 | 6.0-20.0 | 6.0-19.0 | 6.0-18.0 | 6.0-17.0 | 6.0-16.5 | 6.0-16.0 | 6.0-15.0 | 6.0-12.3 |
| 30 | 762 | 7.0-21.0 | 7.0-20.0 | 7.0-19.0 | 7.0-18.0 | 7.0-17.5 | 7.0-17.0 | 7.0-16.0 | 6.0-12.3 |
| 32 | 813 | 7.0-22.0 | 7.0-21.0 | 7.0-20.0 | 7.0-19.0 | 7.0-18.5 | 7.0-18.0 | 7.0-17.0 | 6.0-12.3 |
| 34 | 864 | 7.0-23.0 | 7.0-22.0 | 7.0-21.0 | 7.0-20.0 | 7.0-19.5 | 7.0-19.0 | 7.0-18.0 | 6.0-12.3 |
| 36 | 914 | 8.0-24.0 | 8.0-23.0 | 8.0-22.0 | 8.0-21.0 | 8.0-20.5 | 8.0-20.0 | 8.0-19.0 | 6.0-12.3 |
| 38 | 965 | 8.0-25.0 | 8.0-24.0 | 8.0-23.0 | 8.0-22.0 | 8.0-21.5 | 8.0-21.0 | 8.0-20.0 | 6.0-12.3 |
| 40 | 1016 | 8.0-26.0 | 8.0-25.0 | 8.0-24.0 | 8.0-23.0 | 8.0-22.5 | 8.0-22.0 | 8.0-21.0 | 6.0-12.3 |
| 42 | 1067 | 8.0-26.0 | 8.0-25.0 | 8.0-24.0 | 8.0-23.0 | 8.0-22.5 | 8.0-22.0 | 8.0-21.0 | 6.0-12.3 |
| 44 | 1118 | 9.0-27.0 | 9.0-26.0 | 9.0-24.5 | 9.0-23.5 | 9.0-22.8 | 9.0-22.0 | 9.0-21.0 | 6.0-12.3 |
| 46 | 1168 | 9.0-27.0 | 9.0-26.0 | 9.0-24.0 | 9.0-23.5 | 9.0-22.8 | 9.0-22.0 | 9.0-21.0 | 6.0-12.3 |
| 48 | 1219 | 9.0-28.0 | 9.0-27.0 | 9.0-25.4 | 9.0-24.0 | 9.0-23.5 | 9.0-23.0 | 9.0-22.0 | 6.0-12.3 |
| 52 | 1321 | 9.0-28.0 | 9.0-27.0 | 9.0-25.4 | 9.0-24.2 | 9.0-23.5 | 9.0-23.0 | 9.0-22.0 | 6.0-12.3 |
| 56 | 1422 | 10.0-29.0 | 10.0-28.0 | 10.0-26.0 | 10.0-24.5 | 10.0-23.8 | 10.0-23.0 | 10.0-22.0 | 6.0-12.3 |
| 60 | 1524 | 10.0-29.0 | 10.0-28.0 | 10.0-26.0 | 10.0-24.5 | 10.0-23.8 | 10.0-23.0 | 10.0-22.0 | 6.0-12.3 |
| 64 | 1626 | 10.0-30.0 | 10.0-29.0 | 10.0-27.0 | 10.0-25.4 | 10.0-24.8 | 10.0-24.0 | 10.0-23.0 | 6.0-12.3 |
| 68 | 1727 | 10.0-30.0 | 10.0-29.0 | 10.0-27.0 | 10.0-25.4 | 10.0-24.8 | 10.0-24.0 | 10.0-23.0 | 6.0-12.3 |
| 72 | 1829 | 10.0-30.0 | 10.0-29.0 | 10.0-27.0 | 10.0-25.4 | 10.0-24.8 | 10.0-24.0 | 10.0-23.0 | 6.0-12.3 |
Standard
| ASTM A53 | Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless |
| API 5L | Specification for Line Pipe(Two levels PSL 1 and PSL 2 of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.) |
| A252 | Standard Specification for Welded and Seamless Steel Pipe Piles |
| A500 | Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes |
| A139 | Standard Specification for Electric-Fusion (Arc)-Welded Steel Pipe (NPS 4 and Over) |
| A672 | Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures |
| A691 | Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures |
Tolerance of Outside Diameter and Wall Thickness of LSAW Steel Pipe
| Types | Standard | |||||
| SY/T5040-2000 | SY/T5037-2000 | SY/T9711.1-1977 | ASTM A252 | AWWA C200-97 | API 5L PSL1 | |
| Tube end OD deviation | ±0.5%D | ±0.5%D | -0.79mm～+2.38mm | <±0.1%T | <±0.1%T | ±1.6mm |
| Wall thickness | ±10.0%T | D<508mm, ±12.5%T | -8%T～+19.5%T | <-12.5%T | -8%T～+19.5%T | 5.0mm |
| D>508mm, ±10.0%T | T≥15.0mm, ±1.5mm | |||||
Chemical Composition and Mechanical Properties of LSAW Steel Pipe
| Standard | Grade | Chemical Composition (max)% | Mechanical Properties ( min ) | |||||
| C | Mn | Si | S | P | Yield Strength ( Mpa ) | Tensile Strength ( 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 | |
| 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 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 | |
Process
The three main forming steps of the UOE LSAW pipe forming process include : steel plate pre-bending , U forming and O forming . Each process uses a special forming press to complete the three processes of steel plate pre-bending , U forming , and O forming in sequence , so that the steel plate is deformed into a round tube .
After several steps of stamping on the JCO forming machine , first half of the steel plate is pressed into a "J" shape , and then the other half of the steel plate is pressed into a "J" shape to form a "C" shape , and finally an open "O" is formed by pressing from the middle Type tube blank.
Packing
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2016
Total Annual:
30,000,000-50,000,000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Hunan Dingchen Pipe Industry Co., Ltd. is a professional factory integrating steel pipe, pipe fittings and valve production and R&D. The factory also covers various types of pipes and pipe fittings valve inventory, logistics and related supporting services, and is committed to providing global c... Hunan Dingchen Pipe Industry Co., Ltd. is a professional factory integrating steel pipe, pipe fittings and valve production and R&D. The factory also covers various types of pipes and pipe fittings valve inventory, logistics and related supporting services, and is committed to providing global c...
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