中文版
Home  | About  | Corporate culture |   News | Products   | Product resources | honor | Pipe knowledge | Online message   | Contact Us
 
Tianjin East Albert Steel Trade Co., Ltd. joint success, together with the Joint East Albert Steel's wisdom and hard work, together with the vast .........
Steel pipe, seamless steel pipe basic knowledge 2

Welded steel pipe: also known as pipe , is a steel plate or after Bending, and then made by welding. Weld according to the form of two spiral welded pipe and ERW.

Divided into general use by the pipe, galvanized pipe, the pipe Oxygen , The cable casing, pipe metric, roller tube, pipe deep well pump, vehicle control, control transformers, electric welding thin-walled tubes, welded and spiral welded Yixing Guan.

Pipe general: general Low-pressure pipe used to transport fluid. With Q195A, Q215A, Q235A steel manufacturing. Also can be easily welded mild steel and other manufacturing. Steel pipe to carry water pressure, bending, flattening, and other experiments on the surface of a certain quality requirements, usually Delivery for the length of 4-10m, often require length (or double length) delivery. Welded with the specifications of that caliber Nominal (mm or inches) Nominal and real-caliber, according to the provisions of welded steel pipe wall thickness are common and processing Two thick steel pipe, steel pipe by pipe-side in the form of zoning and without screw thread and two tables for welding steel pipe sizes 6-17. Table 6-17 low-voltage transmission fluid with welded steel pipe (based on GB/T3092-93) nominal diameter steel pipe outside diameter of ordinary steel pipe thickening mm in size mm nominal wall thickness to allow deviation theory weight kg / m thickness theory kg weight / m nominal size allows mm deviation% nominal size allows mm deviation% 6 1 / 8 10.0 +0.50 mm-0.50mm 2.00 +12 -15 0.39 2.50 +12 -15 0.46 8 1 / 4 1.35 2.25 0.62 2.75 0.73 10 3 / 8 17.0 2.25 0.82 2.75 0.97 15 1 / 2 21.3 2.75 1.26 3.25 1.45 20 3 / 4 26.8 2.75 1.63 3.50 2.01 25 1 33.5 3.25 2.42 4.00 2.91 32 11 / 4 42.3 3.25 3.13 4.00 3.78 40 11 / 2 48.0 3.50 3.84 4.25 4.58 50 2 60.0 +1% -1% 3.50 4.88 4.50 6.16 65 21 / 2 75.5 3.75 6.64 4.50 7.88 80 3 88.5 4.00 8.34 4.75 9.81 100 4 114.0 4.00 10.85 5.00 13.44 125 5 ; 140.0 4.00 13.42 5.50 18.24 150 6 165.0 4.50 17.81 5.50 21.63

welded steel pipe with the technology to enhance and improve the processing Simple, instead of part of the seamless pipe welding, pipe welding is capable of producing 219mm (8 inch) above.

pipe at hot-dip galvanizing steel and electricity are two of zinc, zinc hot-dip galvanizing thick, low-cost electricity galvanized .

Pipe Oxygen: Oxygen used by steel-making, the normal use of small diameter welded steel pipe, the specifications from 3 / 8 inch in eight-inch -2. 08,10,15 use, 20 or made of steel Q195-Q235. For corrosion, and some aluminized for processing.

Wire casing: ordinary carbon steel is steel pipe welding, used in concrete structures and distribution , Used the nominal diameter from the 13-76mm. Thin wire wall presentation, most of them conducted after the use of coated or galvanized, cold-formed test requirements.

Metric pipe: seamless with the specifications In the form of pipes, with diameters * mm wall thickness, said the steel pipe welding, ordinary carbon steel, high-quality carbon steel or low-alloy steel & P to the tropical, with cold welding, or welding after the tropical set aside by the cold method made .

& P will the metric system and sub-welded thin-walled, as a general structure of the pieces, such as the drive shaft or transmission fluid, used to produce thin-walled furniture, lamps, etc., it is necessary to ensure the strength and steel tube bending test .

Roller tube: belt conveyor idlers for welding steel pipe, with the general Q215, Q235A, B steel and 20 steel manufacturers, the diameter of 63.5-219.0mm. Curvature of the tube, to end Center line and vertical, elliptical require a certain degree, squash and water for the general test.

Transformer control: used in the manufacture of transformers and other heat pipe heat exchanger, ordinary carbon steel Manufacturing, squash called for expanding the mouth, bending, hydraulic test

【返回】 【顶部】【关闭】    
--------------------------------------------------------------------------------------