Posts by wilson
Common Defects of Seamless Steel Pipe
As a commonly used steel product, seamless steel pipe has certain defects due to various reasons. The common defects are as follows.
1. There are holes in seamless steel pipes, that is, there are r...
Pressure Rating ANSI Class vs Nominal Pressure (PN)
“Pression Nominal” is the rating designator followed by a designation number indicating the approximate pressure rating in bars.
Piping Class Ratings based on the ASME B16.5 – Pipe Flanges and Flan...
How to determine the stainless steel plate
The surface of stainless steel plate is relatively smooth, the plasticity, toughness and mechanical strength are higher, to a certain extent, acid and alkaline gas solution or other corrosive media, i...
Reasons for corrosion of stainless steel pipes
The corrosion of stainless steel pipe mainly occurs in the whole contact with the media environment, which is characterized by uniform thinning along the section. Most of the corrosion occurs in the a...
What is quenching, tempering, normalizing and annealing
The differences of normalizing, tempering, annealing and quenching lie in different processes, different changes of material structure and different results of material properties.
What is quenchin...
The problem of heat treatment defects of medium thick steel plate and its treatment method
With the development and progress of medium thick steel plate technology, people pay more attention to the product quality, and the production enterprises pay more attention to the requirements of pro...
what’s the Nitric Acid
Nitric acid (HNO₃) is a colorless liquid with yellow or red fumes with an acrid odor. Exposure to nitric acid can cause irritation to the eyes, skin, and mucous membrane; it can also cause delayed pul...
The acknowledge of swage nipples fittings
ASME B16.11 Swage Nipple is used to connect two different sized pipe fittings. Unlike normal nipples, these have two different diameters at the two ends. The dimensions of the stainless steel compress...
Welding Joints: Fillet welded & Butt welded Joint
A welding joint is a point or edge where two or more pieces of metal or plastic are joined together. They are formed by welding two or more workpieces (metal or plastic) according to a particular geom...
What is Hydrostatic Testing for water pipeline?
Hydrostatic testing is the primary method of testing for leaks and evaluating the structural integrity of meter racks, cylinders, vessels, pipes, tubing and other pressure vessels. It is performed by ...