Industrial News
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Seamless Steel Pipes Commonly NDT Methods
1. seamless steel tube magnetic particle testing (MT) or magnetic flux leakage testing (EMI) The detection principle is based on the ferromagnetic material is magnetized in a magnetic field, the discontinuity of the materials or products (defect), magnetic flux leakage, magnet powder adsorption (...Read more -
Galvanized steel size SC and the difference DN
The difference between the size of SC and DN of galvanized steel pipe: 1.SC generally refers to the welded steel pipe , the language STEEL CONDUIT, is a shorthand for the material. 2. DN refers to the nominal diameter of the galvanized steel pipe , which is the pipe diameter indication of the pip...Read more -
How to deal with stainless steel rust spots?
About stainless steel rust spot we can start from two points of view of physics and chemistry. Chemical process: After pickling, it is very important to wash properly with clean water in order to remove all contaminants and acid residues. After all processing with polishing equipment polishing, p...Read more -
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