Difference of JCOE and ERW

Straight seam submerged arc JCOE welded steel pipe: with the difference between theERW steel pipewelding process, molding process, the scope of production, production materials, use of industry. In appearance also has a bright appearance difference.

Submerged arc with high frequency straight seam steel pipe welding process

Submerged arc straight seam steel pipe

Submerged arc straight seam steel pipe using molten filling weld wire and plate, can be understood as straight seam steel pipe welding seam by filler. Submerged arc welding as the name implies: based on the embedded welding seam, submerged arc flux for granular straight seam steel pipe, play at the submerged arc straight seam steel pipe weld cooling speed.

High frequency straight seam steel pipe

High frequency straight seam steel pipe is adopted the high frequency current skin effect, make the steel plate welding seam edge in a very short in between rapid melting, and under the action of external force, make the weld fusion together, weld for the parent metal welding.

Submerged arc straight seam steel pipe with high frequency straight seam steel pipe forming the difference

Submerged arc straight seam steel pipe forming JCOE

Submerged arc straight seam steel pipe molding using letters of JCOE image into, is through successive stamping of the steel plate ten thousand tons of press, make steel plate gradually variant of the cold forming process.

High frequency straight seam steel pipe forming FXH

High frequency time gradually into a circular steel pipe molding process for roller.

Submerged arc straight seam steel pipe with high frequency straight seam steel pipe in other aspects of difference

Production range

Submerged arc diameter 325 mm to 1420 mm steel pipe production, production of wall thickness from 7.5 mm to 80 mm.

High frequency pipe production 15 mm to 660 mm diameter, wall thickness from 0.1 mm to 18 mm production.

Production material

Submerged arc can produce any material of straight seam submerged arc welding steel pipe straight seam steel pipe. And a maximum 9711, API straight seam submerged arc tube ASWL standards.

High frequency pipe maximum production pipeline steel quality. Such as L245 L485, X42 to X80, can perform 9711, API straight seam line pipe standards

Using industry

Submerged arc steel tube can be used in large diameter, oil and gas transmission pipeline steel pipe pile, steel structure, bottom steel pipe.

High frequency pipe can be used for space truss structure, small fluid tube, wire and tube, the basic structure, fluid pressure steel pipe.

Look the difference between

High frequency straight seam steel pipe and submerged arc straight seam steel pipe of the tracheostomy tube difference between one of the most obvious is the appearance, high frequency straight seam steel pipe outsourcing finishing smooth, without the weld residual high, tube is grey

First submerged arc straight seam steel pipe, the pipe body microscopic bar type indentation, steel plate surface oxide slightly off. And steel tube appearance apparent difference in high frequency straight seam steel grey.

Hunan great steel pipe co.,ltd production and business operation 57 ~ 1620 mm in diameter, wall thickness of 2 ~ 60 mm  LSAW steel pipe, galvanized straight seam steel pipe, heat expansion straight steel tube located at straight seam steel pipe, etc. Commonly used material Q235B, 16 mn, Q345B, L245, L290, X42 ~ X70. Products in strict accordance with the GB/T3091-2001 standard, American standard ASTM A53, ASTM A500 featured standard, British standard, DIN standard, European standard EN 10255/10240 2440/2444; EN10219 standard production.