LSAW steel pipes are taking the steel plate as raw material, mold it by the molding machine, then do double-sided submerged arc welding. Through this process, the LSAW steel pipe will get excellent ductility, weld toughness, uniformity, plasticity, and great sealing.
The LSAW steel pipes ordered by the customer has been loaded and shipped
1.Outside Diameter:Φ508mm- 1118mm (20"- 44")
2.Wall Thickness: 6.0-25.4mm 1/4"-1"
3.Quality Standards: API、EN、ASTM、DIN、BS、JIS、GB
4.Length: 5.8-12.3m
5.Grades: API 5L A-X90,GB/T9711 L190-L625
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 |
LSAW steel pipes length range from 3 m to 15 m. The maximum length of the LSAW steel pipe is 15 m. If you want longer it should choose the T-Welded pipe.LSAW pipe’s diameter range normally from 16 inches (406.4 mm) to 60 inches (1524.0 mm). Wall thickness from 6.0 mm to 30.0 mm. Good performances on high-pressure resistance, and low-temperature corrosion resistance.
LSAW steel pipes have been widely applied in the oil and gas pipelines, especially required large diameter and thick wall pipe with high strength and long-distance. Meanwhile in construction of a structure that needs tough strength, water treatment, thermal industry, bridge building, etc.
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