The main factors influencing the 304 stainless steel plate surface roughness
304 stainless steel manufactured by cold rolling, heat treatment, pickling, then through rough roller leveling, called a 2 d surface processing, 2 d can be pickling surface, can also be a rough surface. Again after pickling with large diameter and high precision polishing roll small reduction of flat (this only a small amount of lower […]
How to distinguish between stainless steel and stainless iron
The main elements of stainless steel are iron, chromium, and nickel. We usually divide stainless steel into nickel-chromium stainless steel and chromium stainless steel. The so-called “stainless iron” actually does not exist. “Stainless iron” is just an irregular name in stainless steel, which is a very unscientific verbal name. All alloy products of iron elements […]
Potion or spectrum, which is more reliable for detecting stainless steel?
202 and 304, the price difference between the two is nearly 1,000 yuan, one contains less than 4 nickels, and the other contains 8 nickels. It is difficult to distinguish with the naked eye. However, after dropping a little potion, 304 will hardly change color. And different materials, the color of the potion is also […]
Where is the advantage of cold-formed stainless steel plate?
From the perspective of consumption, China’s apparent consumption has reached the world’s highest level and is close to 1/4 of global consumption. Per capita consumption of stainless steel has reached 3.4KG, which has leaped to the forefront of developing countries, but the growth rate of consumption has gradually slowed down. From a rapid development stage […]
The origin of the ss plate number and identification method
1. Use international chemical element symbols and national symbols to represent chemical components, and Arabic letters to represent component content: such as China, Russia 12CrNi3A. 2. Use fixed-digit numbers to represent steel series or numbers; such as the United States, Japan, 300 series, 400 series, 200 series; 3. Use the Latin alphabet and sequence to […]
Features and advantages of the spinning process for ss pipe fittings
With the development of spinning technology, the spinning process gradually replaces the traditional process to produce ss pipe fittings. Western developed countries have imposed a technological blockade on my country regarding this technology. Therefore, our research goal is to achieve the ultimate thinning and spinning of ss pipe fittings and increase the diameter of stainless steel pipe […]
The Difference Between Stainless Steel Hardness HB, HR, HV
Introduction to Hardness: Hardness refers to the ability of a material to resist the pressing of hard objects into its surface. It is one of the important performance indicators of metal materials. Generally, the higher the hardness, the better the wear resistance. Commonly used hardness indicators are Brinell hardness, Rockwell hardness, and Vickers hardness. 1. […]
Instructions for use of stainless steel chemical composition determination solution
Welcome to use stainless steel chemical composition determination solution. Before using this determination solution, please read this manual carefully. It will let you quickly grasp the performance and operation method of this determination solution and bring convenience to your work. Requirements: 1. The surface of stainless steel must be cleaned (greasy dirt, dust, surface oxide […]
The calculation Formula for the Pressure of Ss Pipe
How to Calculate the Pressure of Ss Pipe: 1. Calculation formula: 2*wall thickness*(tensile strength*40%)/outer diameter 2. 316, 316L, TP316, TP316L-tensile strength: 485MA 3. 321, 304, 304L-tensile strength: 520MA The tensile strength of 304 stainless steel pipe is 520MPA The tensile strength of 316 stainless steel pipe is 485MPA The water pressure that the ss pipe […]
The Role of Nitrogen in Stainless Wire
It is understood that the range of nitrogen content in different matrix structures is different: in the ferrite matrix, the mass fraction of nitrogen t>0.08%; in the austenite matrix, the mass fraction of nitrogen is 1>0.4%. Depending on the amount of nitrogen added, the structure and composition of the stainless wire steel are also different. […]