1. Thermomechanical treatment. High-temperature thermomechanical treatment can increase the yield ratio and elastic limit of spiral steel pipes. Improve the comprehensive mechanical properties, fatigue properties, and stress relaxation properties of spiral steel pipes. Reducing the ductile-brittle t

Rough polishing and fine polishing are the two major surface processing techniques for parts processing, and different supplies correspond to different product surfaces. Therefore, when choosing the surface processing technology, it is also necessary to choose according to the use environment and oc

Precautions for steel pipe pile construction1. Before steel pipe pile construction, it is necessary to measure and set up the line, which needs to be carried out by professional surveying personnel, and all the axes and pile positions are set up.2. After the pile machine is in place, the pile frame

1. LSAW steel pipes should be submitted for acceptance in batches, and the batching rules should meet the requirements of the corresponding product standards.2. The inspection items, sampling quantity, sampling location, and test method of LSAW steel pipes shall be following the provisions of the co

Product: Metal coated formable steel. Material: EN10346. Specification: 1.5mm*1000mm*3000mm. The new customer in the Mexico construction industry product will be shipped. Here is the product before shipping.

Surface treatment method of anticorrosive spiral steel pipe1. The surface of the anticorrosive spiral tube is cleaned with solvents and emulsions. Remove the organic matter on the surface of the spiral tube, but it cannot remove the surface rust, oxide scale, welding flux, etc.2. Use a wire brush, s

What are the main steel pipe fittings?1. The steel pipe fittings used to connect the pipes are: flanges, unions, pipe clamps, clamps, clamps, hose clamps, etc.2. Steel pipe fittings that change the direction of the pipe: elbows, elbows.3. Steel pipe fittings for changing the pipe diameter: reducing

The guaranteed method of the wall thickness accuracy of the straight seam steel pipe1. Tube billet heatingThe heating should be even, and the rapid rise and fall of the temperature should be avoided. The temperature of each rise and fall should be steady and slow, and the temperature of the rise and

Purchase situation of straight seam steel pipeThe nominal diameter of the welded pipe is 6~150mm, and the nominal wall thickness is 2.0~6.0mm. The length of the welded pipe is usually 4~10 meters. The surface of the steel pipe should be smooth, and no defects such as folding, cracks, delamination, l

Product: Seamless steel pipe. Standard: ASTM A106. Material: Carbon steel. Thanks for the confidence from the customer in Australia. Cooperating with threeway for more than 8 years. Australia pipe customers perfect receipt