Spiral steel pipe

Spiral steel pipe is a spiral seam steel pipe with steel coil as the raw material, which is usually formed by warm extrusion and welded by automatic double wire and double submerged arc welding process.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.

use

Spiral steel pipe is mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction.

For liquid transportation: water supply and drainage.For gas transportation: gas, steam, liquefied petroleum gas.For construction: pile driving pipe, bridge;Pipework for wharf, road, building structure, etc.

The material

Q23, 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).