Difference between JCOE welded steel pipe and high frequency straight seam steel pipe

- Jan 29, 2019-

The variations between the straight seam buried arc JCOE welded steel pipe and also the high frequency straight seam steel pipe are as follows: fastening method, forming method, production scope, production material, and victimisation trade.There are apparent variations in look.

Welding technology distinction between JCOE welded steel pipe and ERW steel pipe

JCOE steel pipe adopts fastening wire and plate section melting filler weld, which may be understood as fastening straight seam steel pipe weld through filler.As the name suggests, submerged arc fastening: through the embedded welding of the welding seam, the flux of buried arc straight seam steel pipe is granular, that plays a task in cooling speed of long buried arc straight seam steel pipe fastening seam.

ERW steel pipe adopts the electrical phenomenon of high frequency current to form the plate weld edge soften quickly terribly} very short body of water, and build the fastening seam fuse along below the action of external force, and also the fastening seam is that the base metal fusion welding.

The molding distinction between JCOE welded steel pipe and ERW steel pipe

Arc-submerged straight seam steel pipe is created by the form of letter JCOE. it's a chilly forming method during which the plate is bit by bit misshapen through consecutive stamping of the steel plate with a ten,000 ton press.

ERW steel tube forming method for multi - roll times bit by bit become spherical.

Other aspects distinction between JCOE welded steel pipe and ERW steel pipe

LSAW  steel tube OD ranges from 325mm to 1420mm, and also the wall thickness ranges from seven.5mm to 80mm.

ERW steel tube OD varies from 15mm to 660mm, and also the thickness of the assembly wall ranges from zero.1mm to 18mm.

Production material

JCOE teel pipe will turn out any quite straight seam arc-welded steel pipe.And the highest execution 9711,API straight seam buried arc steel pipe ASWL customary.

ERW steel tube will turn out the steel quality of the pipeline.Such as L245 to L485,X42 to X80, will execute 9711,API straight seam pipeline customary

Using trade

Submerged arc steel pipe may be employed in giant diameter long distance oil and gas pipeline, steel pipe column, steel structure, submarine steel pipe

High frequency steel tube may be used for the structure of the grid tube, tiny diameter fluid steel tube, wire tube, foundation light-weight structure, bottom pressure fluid steel tube.

Look the distinction between

The most obvious distinction between the high-frequency straight seam steel pipe and also the submerged arc straight seam steel pipe is that the look. The high-frequency straight seam steel pipe is purchased swish and smooth, with no fastening residual height, and also the pipe is all gray

 there are microscopic strip-type indentation on the tube body, and there are slight exfoliation marks on the surface compound of the plate.And the look of steel tube is clearly totally different from that of high frequency straight joint steel.

Cangzhou Steel Pipe Group (CSPG) Co., Ltd

Cangzhou Steel Pipe Group (CSPG) Co., Ltd. is a large-sized, key metallurgic enterprise of Hebei Province in North China, whose history dates back to 1994. CSPG currently em/paces six member companies with products varying from SSAW, LSAW, ERW, seamless steel pipes to 3PE pipes, galvanized pipes, casing pipes, etc. A Joint-stock corporation, CSPG occupies an area of 600,000 square meters with a total asset of $530 million.

Specialized in the production of straight welded pipe spiral pipe galvanized pipe 3PE/3PP/FBE/TPEP internal and external epoxy powder internal and external epoxy resin cement mortar two cloth three oil buried pipeline IPN8710 non-toxic drinking water internal and external plastic coated lining plastic and other anti-corrosion pipe fittings for oil and gas pipeline water conservancy projects

Executive standard :DIN30670 DIN30678 CSA Z245 AFNOR nf49-710/711 NACE rp0394/0490 AWWAC 210/C213GB/T9711 API 5L ISO 3183Material: Q235B/Q355BGR A GR B x42-x80 l245-l555


Business scope: 21.3mm-3620mmLSAW submerged arc welded pipe 325-2020mmERW straight welded pipe 6mm-711mmSMLS seamless tube 10-1120mmSSAW spiral steel tube 219-3620mmDemand for quality suppliers and partners