HFW Pipe

From HR coil to tube, longitudinal Formed by cold-bending at room temperature, then using high frequency current adjacent or skin effect automatic welding to electric welded steel pipe.
 
Main usage: oil and natural gas transportation pipeline project,oil well casing pipe,mine slurry and mine powder,undersea line pipe,Extra high voltage power steel pipe tower,Refining Pipeline project,urban water supply project.
 
Diameter:Φ19mm-Φ610mm(3/4"-24")
Wall Thickness:4.0mm-19.1mm
Standard:API,ASTM,ASME,DNV,GB/T
Lengths:6m-18.5m
Grade:L210-L485(A-X70),J55-N80-1,Q195-Q550
 

SAWL Pipe
 

From hot-rolled steel plate to tube, formed by cold-bending at room temperature, then use double-side submerged arc automatic welding to longitudinal spiral welded steel pipe.
Main usage: oil and natural gas transportation pipeline project,mine slurry and mine powder transportation line pipe,undersea line pipe,heating power pipeline project, urban water supply and drainage project.
Technical specification
Diameter: Φ406.4mm-Φ1626mm(16"-64")
Wall Thickness: 6.4mm-54mm
Standards: API,ASTM,ASME,JIS,GB/T
Lengths: 3m-12.3m
Grade: API 5L(A,B -X100),Q195-Q550 

SAWH Pipe

From hot-rolled strip to tube, formed to spiral-shape at room temperature, then double-side submerged arc automatic welding to spiral welded steel pipe.
Main usage: The products can be used in shale gas, oil, natural gas, ore slurry transportation, tap water, sewage engineering, heating network transformation and other projects, and they are also widely used in piling, bridges, steel structures, etc.
 
Diameter: Ф219.1~Ф2850mm.
Wall thickness: 6.3~25.4mm.
Steel grade:
Pipeline steel: L245/B~L555/X80;
Carbon steel: Q235~Q460.
Executive standard:
                  API SPEC 5L PSL2 Edition 45 specification for line pipe
                  GB/T9711-2011 Pipe for Oil & Gas Industry Transportation System
                  GB/T3091-2008 Welded Pipe for Low-pressure Fluid Transportation
                  SY/T5037-2000 SSAW Steel Pipe for common fluid Transportation
                  SY/T5040-2000 SSAW steel pipe for piling
                  CJ/T3022-93 SSAW steel pipe for city heat supply

                  API 5L(A,B -X100),Q195-Q550

Coating

External anticorrosion can perform anticorrosion processing on steel pipes with diameters of φ88.9~φ2850mm. Anti-corrosion types include 3PE, 2PE, 3PP, 2PP, single-layer epoxy powder, double-layer epoxy powder and other external anti-corrosion coating.
External Surface anti-corrosion: Anti-corrosion coat for both sides available upon request; Cement, asphalt, epoxy resion, FBE, two-layer/three-layer PE/PP.
Internal coating: Anti-drag lining of oil and gas pipe as per both national and international standard, Liquid Epoxy lining in conformity with potable water standard.