Longitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes
  • Longitudinally Welded Steel PipesLongitudinally Welded Steel Pipes

Longitudinally Welded Steel Pipes

You can rest assured to buy customized Pengfa Longitudinally Welded Steel Pipes from us. we have many years of production experience, so my quality is far ahead of the industry, but we still strive to improve the quality and improve the delivery time to ensure our customers will receive the highest quality products.

Send Inquiry

Product Description

The geometrical characteristics of the straight seam steel pipe section are good, the pipe wall is generally thin, the section material is distributed around the center of mass, the section rotation radius is large, and the torsional stiffness is large. As compression, bending and bidirectional bending members, the bearing capacity is high, and the flatness and cross section dimensions of the cold-formed pipe are more accurate than the cross section of the hot-rolled opening.


As the professional manufacture, we would like to provide you Pengfa Longitudinally Welded Steel Pipes. Straight steel pipe English (Straightsteel pipe), general welded pipe: general welded pipe is used to transport low-pressure fluid. Made of Q195, Q215A, Q235A steel, Q235B plain carbon. It can also be manufactured together with easy-to-weld 0317 standard model 6012 and steel mother 755 mild steel. Steel pipes are subject to water pressure, bending, flattening and other tests, and have certain requirements for surface quality. Usually, the delivery length is 4-10m, and it is often required to deliver in fixed length (or double length).


The specification of the Longitudinally Welded Steel Pipes is indicated by the nominal diameter (mm or inch). The nominal diameter is different from the actual one. The welded pipe has two types of ordinary steel pipe and thickened steel pipe according to the specified wall thickness. The welding process of submerged arc welding straight seam steel pipe is submerged arc welding technology, which uses filler welding and particle protection flux submerged arc. The diameter of production can reach 1500mm. LSAW is the English abbreviation of submerged arc welding straight seam steel pipe. The production technology of submerged arc welding straight seam steel pipe includes JCOE forming technology and rolling forming submerged arc welding technology. 


When the diameter is large, two steel plates may be used for rolling, which will form a phenomenon of double welds. Standards that can be implemented are GB/T3091-2008 low-pressure fluid steel pipe production standards, GB/T9711.1-2-1997 oil and gas steel pipe production and use standards, and American Longitudinally Welded Steel Pipes execution standards. Production material: Q195A-Q345E; 245R; Q345QA-D; L245-L485; X42-X70. The pressure parameters mainly include 2ST/T, S is the yield strength, and T is the wall thickness. Submerged arc welding has been developed into two-wire submerged arc welding and multi-wire submerged arc welding, and the efficiency is further improved.


Product Parameter (Specification)

Cold Drawn Lu Li 12m5130 Lu Li 12m5030 Tobacco Big Seamless Giant Energy Expansion
 7 mm
14*2-3 12000 57*3. 5 140*4 325*6.5 5500
16*2-4 8600 60*3.5 5000 140*5 4850 325*7 Big Seamless 5260 377 5150
18*2-4 8300 76*3. 5 4880 140*6 4630 325*7*12 5450 426 5150
21*2-4 6900 76*4 4800 140*10 4630 325*9 8 mm
22*2-4 6900 89*4 4800 159*4.5 4880 325*10 377 4850
25*2-5 6300 108*4 4800 159*5 4660 356*8 5300 406 4850
27*2-4 6300 76*4. 5 4690 159*6 4630 356*8.5 5300 426 4850
27*5-6 6300 89*4.5 4690 159*7 4630 356*9 5300 457 5000
32*2.5 5800 108*4. 5 4690 159*8 4630 377*8Baotou Steel 5450 480-530 5000
32*3 5250 73*5 4630 168*5 4750 377*8Tobacco 610-630 5200
32*3. 5-4 5250 76*5 4630 168*6 4580 377*9 Tobacco 9 mm
32*4.5 5250 89*5 4630 168*6.7 4580 377*9.5 5280 426-457 4800
34*3 5250 89*5.2 4630 168*7 4580 377*10 5280 480-530 4800
34*3. 5-4 5250 108*5 4630 219*6 4750 377*12 5300 610-630 4800
34*5-6 5250 76*6 4600 219*6.5 4760 406*9.5 5300 720 5100
38*3-4 5200 89*6 4600 219*7 4560 406*10 5300 820 5200
38*5-6 5200 108*6 4600 219*7.8 4560 426*8 5400 10mm
Hot Rolled 114*4 4900 219*8 4560 426*9 5400 377*10 4750
42*3 4950 114*4. 5 4750 219*10 426*9.5 5300 426*10 4750
42*3. 5-4 4800 114*5 4630 273*6.5 4980 426*10 5300 480*10 4750
42*5-6 4800 114*5.7 4630 273*7 4760 457*9 508*10 4750
45*3 4900 114*6 4600 273*8 4750 457*20 530*10 4750
45*3. 5-4 4800 114*8 4600 273*8.5 4560 Ju Neng Mo Long 610*10 4850
45*5-6 4800 133*4 5000 273*9 4560 325*8 630*10 4850
48*3 4850 133*4. 5 4730 273*10 4560 325*9 720*10 5050
48*3. 5-4 4750 133*5 4660 325*8 4730 325*10 4580 820*10 5150
48*5-6 4750 133*6 4630 325*8.5 4640 325*11 4530 11mm or more
57*3 4950 133*4Big Seamless 5300 325*9 4610 325*12 4530 480 4750
57*3. 5 4700 27*2.7-3 6m 6800 325*10 4580 325*13 4530 508 4750
57*4 4700 32*3-4 6m 5550 325*14 4530 530 4750
57*5-6 4700 34*3.5 6m 5550 Shandong 325*15 4530 610 4850
60*3 4800 42*5 6m 325*16 4530 630 4850
60*3.5 4700 48*3. 5 6m 5000 194*6 5000 720 5050
60*4 4700 57*3. 5 6m 4950 219*6 4750 820 5150
60*5-6 4700 57*4 6m 4950
6m fixed length*130 Middle disconnect*100 Stock small tube 6m fixed length*300


Product Feature And Application

According to the production process, Longitudinally Welded Steel Pipes can be divided into high frequency straight seam steel pipes and submerged arc welded straight seam steel pipes. Straight seam steel pipes are mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction.

Used for liquid transportation: water supply and drainage.

For gas transportation: gas, steam, liquefied petroleum gas.

For structural purposes: as piling pipes, as bridges; pipes for wharves, roads, building structures, etc.


Product Details




Hot Tags: Longitudinally Welded Steel Pipes, China, Manufacturers, Suppliers, Factory, Customized, Price

Related Categories

Send Inquiry

Please feel free to fill your inquiry in the form below. We will reply you in 24 hours.