Industrial News
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Difference between hot rolled and cold drawn steel tube
Why is cold drawn steel tube is usually more expensive than the hot rolled? Have you ever thought of their difference? The outer diameter and wall thickness of the hot-rolled seamless steel tube is changing. The outer diameter is larger on one end and smaller on the other hand. The outer diameter...Read more -
Non-destructive Testing of Straight Seam Steel Surface
Surface NDT methods of straight seam steel selection principles: magnetic iron pipe should be used in magnetic particle testing; non-ferromagnetic steel should be used in penetration testing. Delayed cracking tendency of welded joints, the surface should be non-destructive testing after welding c...Read more -
What Standards Referred to Carbon Steel Plates?
Carbon steel plates almost include all the common standards of steel plate/sheet. 1. ASTM A36 Standard ASTM A36 Standards are the most common standards of carbon steel plate. 2. ASTM A283 Grade A, B, C Standard It is also the most common material in the carbon structure. 3. ASTM A516 Standard AS...Read more -
Measuring method of end cut of steel pipe
At present, the measurement methods of pipe end cut in the Industry mainly include straightedge measurement, vertical measurement, and special platform measurement. 1.Square measurement A square ruler used to measure the cut slope of the pipe end generally has two legs. One leg is about 300mm i...Read more -
Why is stainless steel not easy to corrode?
1. Stainless steel does not rust, it also generates an oxide on the surface. The rust-free mechanism of all stainless steels currently on the market is due to the presence of Cr. The fundamental reason for the corrosion resistance of stainless steel is the passive film theory. The so-called passi...Read more -
Common pipe fittings
There are many types of pipe fittings, which are classified according to their use, connection, materials, and processing methods. By purpose 1. Pipe fittings for connecting pipes are: flange, joint, pipe clamp, ferrule, hose clamp, etc. 2, change the pipe direction of the pipe: elbow, elbow ...Read more