2024-05-30 Causes and preventive measures for the formation of single one-sided undercuts: In the production process of submerged arc welded steel pipes, especially in high-speed welding, undercuts have become one of the main defects in the production process of spiral submerged arc welded steel pipes. The und
Read More 
2024-05-29 API 5L/ASTM A53 GR.B (Small Diameter ERW Steel Pipe)Outside Diameter Wall Thickness FOB TIANJINOutside Diameter Wall Thickness FOB TIANJIN (mm)(mm)USD/TON (mm) (mm)USD/TON33.4(1″)2.1-2.4627.64 Φ133 3.0-5.75603.05 2.5-3.25607.39 6.0-7.75613.17 3.5-4.0617.51 8.0-10639.21 42.3(1.2″)2.1-2.4626.19
Read More 
2024-05-29 API 5L/ASTM A53 GR.B (HOT ROLLED ERW STEEL PIPE)API 5L/ASTM A53 GR.B (Hot Rolled ERW Steel Pipe)Outside Diameter Wall Thickness FOB TIANJINOutside Diameter Wall Thickness FOB TIANJIN(mm)(mm)USD/TON(mm) (mm)USD/TON219、2455.0-11.75613.17 4625.75-11.75646.06 2735.0-11.75613.17 12.5-13.75653.59 12.5-13.
Read More 
2024-05-29 API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE)Outside Diameter Wall Thickness FOB TIANJINOutside Diameter Wall Thickness FOB TIANJIN(mm)(mm)USD/TON(mm)(mm)USD/TON245, 2735.0-9.28632.44 450, 457, 508, 5306.5-11.98656.85 9.45-9.98635.39 12.0-14.5664.09 10.0-11.78638.33 15.0-17.8671.32 2995.0-
Read More 
2024-05-29 The concept of thin-walled spiral steel pipe: the strip steel is fed into the welded pipe unit, and after multiple rollers rolling, the strip steel is gradually rolled up to form a round tube blank with an open gap. The pressing amount of the extrusion roller is adjusted to control the weld gap to 1
Read More 
2024-05-28 API 5L/ASTM A106 GR.B, Seamless Carbon Steel PipeDNOD(mm)SCH40(6m/5.8m)SCH80(6m/5.8m)SCH160(6m/5.8m)WTFOBWTFOBWTFOB(mm)USD/TON(mm)USD/TON(mm)USD/TON1/4”13.72.2410.00 3.0210.00 //3/8”17.12.3110.00 3.210.00 //1/2”21.32.7710.00 3.7310.00 4.7810.00 3/4”26.72.8710.00 3.9110.00 5.5610.00 1”33.43.3810.00 4
Read More 
2024-05-28 API 5L GR.B/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL PIPEFOB TIANJINOutside Diameter (mm)USD/TON406457508609.6711.1762812863.6Wall 8772 772 779 765 765 765 765 765 Thickness 9.53736 758 765 743 743 743 743 743 (mm)10736 722 729 743 743 743 743 743 12736 722 729 743 743 743 743 743 14736 722 729 743
Read More 
2024-05-28 1. The shaped steel angle is not fully charged① Defect characteristics of underfilled profiled steel angles: Due to insufficient filling of the finished hole, the lack of metal in the edges and corners of the profiled steel is called underfilled profiled steel angles. The surface is rough, mostly ap
Read More 
