Length: 2 m – 18 m or custom
Standard & Grade: ASTM A53 Grade A/B/C,API5L,PSL1,PSL2,GR.B/X42-X80
Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Usage: Used for Fluid Transmission, Structural Support in Industrial Construction, oil/gas/water Transmission, Engineering/Offshore projects.
LSAW is an abbreviation for Longitudinal Submerged Arc Welding. The LSAW pipe production process begins with a plate, which is formed into a pipe by joining each side of the plate/strip longitudinally according to the required diameter, then welded with filler metal.
LSAW steel pipe is produced using a single plate as a raw material, where the steel plate is pressed (rolled) into a tube blank in a mold or forming machine. It then adopts double-sided submerged arc welding (often referred to as DSAW) and expands the diameter. The weld integrity is appropriately strong with uniformity and compactness.
LSAW Steel Pipe is categorized into UOE, RBE, and JCOE steel pipe based on its different forming methods.
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
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
100% ultrasonic flaw detection for the material plate;
100% automatic on-line UT test after welding;
100% whole-length seam X-ray test;
100% inside weld line industrial TV test;
100% hydrostatic test;
100% automatic on-line seam UT test after hydrostatic test, expanding;
100% X-ray test and make X-ray film or picture record on pipe ends;
100% pipe appearance and plate appearance inspection
Tolerance of Outside Diameter and Wall Thickness
| 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<t<15.0mm, ±0.11<=”” p=””></t<15.0mm,> |
| D>508mm, ±10.0%T | T≥15.0mm, ±1.5mm | |||||
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No matter you have rich experience of importing or new in this industry, our team will try the best to make your purchase of steel pipes fast and efficient.
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common size of steel pipes are in stock more than 800 tons, CIF orders will book stand-on vessel first.
Test report, certificates, CO and all customs clearance documents will be replied in time.
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