Submerged Arc Welding Ssaw Pipe 8" Diameter En10219 Standard

Submerged Arc Welding Pipe Diameter Steel Pipe Ssaw Steel Pipe En10219 Standard Steel Tube

Spiral steel pipe is mainly used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction, is one of 20 key products of our country's development.
For liquid transportation, water supply and drainage.For gas, gas, steam, liquefied petroleum gas.For structure: piling pipe, bridge;Dock, road, building structural tube,

Spiral steel pipe is a steel strip coil plate of raw materials, often warm extrusion molding, with automatic double wire welding double-sided submerged arc welding technology with the spiral seam pipe.Spiral steel pipe will strip into welded pipe unit, the multichannel roll rolling, strip steel rolled up gradually, there is an open space form of round billet, adjust the quantity of the squeezing roller, make the weld gap control in 1 ~ 3 mm, and make joint flush on both ends.

the raw material is steel strip coil, wire, flux.Have to pass strict physical and chemical inspection before investment.
(2) the strip head to tail docking, use single or double wire submerged arc welding, after rolled steel tube adopts automatic submerged arc welding repair welding.
(3) before shaping, strip after flattening, cutting edge, edge planing, transmission and cleaning the surface to the flanging process.
(4) on both sides of the electric contact pressure gauge control conveyor under the pressure of oil cylinder pressure, ensure the smooth delivery of strip steel.
(5) the use of external control or internal control roll forming.

Steel grade can be gr.2,gr.3 Q235A,Q235B,10#,20#,Q345(16Mn),L245(B),L290(X42),L320(X46),L360(X52),L390(X56),L415(X60),L450(X65),L485(X70),L555(X80),L290NB/MB(X42N/M),L360NB/MB(X52N/M),L390NB/MB(X56N/M),L415NB/MB(X60N/M),L450MB(X65),L485MB(X70),L555MB(X80.

While under the influence of economic crisis, but the spiral steel tube company is recovering gradually development, to meet a better tomorrow.Spiral steel pipe in gas transmission, transportation plays a large role.
With several major pipeline engineering planning and construction at home and abroad, the large deformation of pipeline steel, high strength thick low temperature level roasted bend and pipe fittings for high-value-added products, showing good market competition ability and large market demand, and domestic enterprises in the development of this series of products progress slowly.As soon as possible in order to develop suitable for industrial application of high added value of large deformation of pipeline steel, roasted bend pipe steel, pipe yard with low temperature pipes with steel, X100 straight seam submerged arc welding pipe, spiral seam submerged arc welding pipe and roasted bend, spiral steel pipe.