Industrial News
-
API 5CT Oil Casing Development and Types Classification
After nearly 20 years of efforts, China’s oil casing production from scratch, from low price to high price, from low steel grade to API series products, and then to non API products with special requirements, from quantity to quality, they are close to the level of foreign oil and casing pr...Read more -
What are the factors affect flanges price？Let’s look
Factors influencing flange price: flange material In whole, the materials that can be produced are cast iron, carbon steel, alloy steel, stainless steel, etc. The price of different materials is different, they will rise and fall with the price of steel in the market. After the change, the price ...Read more -
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