Spiral steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the oute.
Welded steel pipe blank steel sheet or strip, and which are welded steel pipe
Welded pipe commonly used material: Q235A, in fact q235 material steel pipe specifications table. Q235B, 16Mn, 20 #, Q345, L245, L290, X42, X46, X60, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb. Welded steel pipe blank steel sheet or strip steel, hot rolled thick welded pipe Yan Sen. Its different welding process is divided into the furnace pipe welding (resistance welding) pipe and active arc welded pipe. Want to know the blank. Its the welding form of different divided into two kinds of Longitudinal and spiral welded pipe. Circular welded pipe and shaped (square, flat) pipe is divided into its end look. Hot rolled thick-walled welded pipe Yan Sen. Welded pipe is divided into following certain types: GB/T3091-2001 (high pressure fluid transportation with galvanized welded steel pipe) because of its material and useful. Critical for the conveyance of water, gas, environment, oil and heating hot water or steam ordinary high pressure fluid and other useful tube. Want to know Hebei thick-walled welded pipe. The representative of material: Q235A grade steel.
Seamless steel tube quenching tank water quenching and slot external water quenching. Tank water quenching process is the most simple way is to dip quenching; easy to make inconsistent steel top and bottom of the cooling rate, pipe bending. Slot external water quenching process more successful "rotation, while the steel pipe, steel pipe inner surface of the axial water spray, the outer surface of the laminar flow of water quenching water quenching heat treatment process. Immersion quenching immersion quenching plus inner axial injection outside injection plus inner axial injection layer stream injection plus inner axial injection cooling capacity of the cooling method, the steel pipe outer surface layer stream injection and the cooling capacity of the inner axial injection process strong, high efficiency of quenching. Together with steel pipe rotating device, allows uniform cooling and cooling minimal deformation pipe in the circumferential direction. Steel pipe internal and external surface of the cooling in the form of different, often cause steel pipe cooling uneven, resulting in deformation. Direction along the length of pipe within the axial injection uneven cooling can give to make up for by the local water volume adjustment layer. In actual production, large diameter steel pipe (DN ≥ 300) need to be quenched, within the axial jet full of inner hole is not only a waste of water resources, and will increase the cooling, pumping stations and other investment.
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API seamless pipe for water,gas,fluid,ALL THE SEAMLESS TUBE ARE APPLIED TO API 5L ,ASTM A106 STANDARD,90%PRODUCTS ARE EXPORTED OVERSEAS SUCH AS USA ,RUSSIA ,INDIN ,ECT.
Large diameter thick-walled straight seam steel pipe The main process of large-diameter thick-wall straight seam steel pipe is plate-milling-pre-bending forming-pre-welding-internal welding-external welding-ultrasonic inspection.The submerg.
Seamless steel pipe Standard:ASTM A106/ASTM A53/DIN/API 5L/API 5CT/X45/X52/X60.Seamless steel pipe Application:Natural gas, petroleum, chemical industry, electric power, metallurgy thermodynamic fields, water supply engineering, steam heatin.
iron pipe,DN 400 Ductile iron pipes Delivery Detail :During 15-30 days after the signing of the contract.
stainless steel pipe,Used for low pressure liquid delivery such as water, gas, and oil.Material:304,304L,316,316L.
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