Comparison of weldability between 316L and 304 stainless steel316L stainless steel welding performance 316L stainless steel belongs to ultra-low carbon pure austenitic stainless steel, which has excellent weldability and a low possibility of intergranular corrosion. Larger tensile stress, larger welding heat input, and slower cooling rate are easy to form thermal cracks, corrosion cracking, and […]
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12
Jan
Jan
Stainless steel precision tubes are produced, which are superior to ordinary stainless steel tubes in size, performance, and even appearance. The same is true for surface treatment. What surface treatment can stainless steel precision tubes do? 1. Remove the scale Oxide skin is the appearance of a layer of black hard material on the surface […]
09
Jan
Jan
In the past, stainless steel pipes could be used for water pipes mainly as water supply pipes, and most of them were seamless steel pipes. And now we can see that stainless steel drain pipes are installed outdoors, which is what we often call stainless steel downpipes. Why can stainless steel welded pipes be used […]
04
Jan
Jan
After the stainless steel pipe fittings are compressed, the pipe will become hard and easy to crack due to deformation. Generally, it needs to be preheated to above 300, and the high temperature is around 1050 and 700, so stainless steel pipe fittings need to be annealed. When stainless steel pipe fittings are welded to […]
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No wonder austenitic stainless steel welding often has problems. It turns out that these points have not been noticed!
29
Dec
Dec
Welding characteristics of austenitic stainless steel: the elastic and plastic stress and strain in the welding process are very large, but cold cracks rarely appear. There is no quench hardening zone and grain coarsening in the welded joint, so the tensile strength of the weld is relatively high. The main problem of austenitic stainless steel […]
28
Dec
Dec
304 stainless steel pipe is widely used in various fields due to its good corrosion resistance and oxidation resistance. However, 304 stainless steel pipe manufacturers have found that in fact, when 304 stainless steel pipe is used above 450 ° C, the surface of the steel pipe will appear yellowish. So, what are the principles […]
Some 220 million light-years away, nestled in the constellation Pegasus, spiral galaxy NGC 7469 whirls around an active galactic nucleus (AGN). It’s one of the more well-studied galaxies in our universe, but the James Webb Space Telescope has just produced one of the most detailed photos of the wreath-shaped galaxy ever seen. Because NGC 7469 […]
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Dec
Dec
The mechanical seal can also be called the end face seal, which is perpendicular to the end face of the rotation axis. Under the action of the fluid pressure on the end face and the external elastic force of the compensation machine, it relies on the auxiliary seal to keep fit with the other end […]
Stainless steel pipes can be divided into CT series (400 series), Cr-N series (300 series), Cr-Mn-Ni (200 series), and precipitation hardening series (600 series) according to the composition. 200 series – chrome-nickel-manganese austenitic stainless steel 300 series – chromium-nickel austenitic stainless steel. 1. 301—–Good ductility, used for molding products. It can also be hardened by […]
06
Dec
Dec
How much is a ton of 2205 duplex stainless steel? This question is a question that arises from many people who do not know about duplex stainless steel. 2205 duplex stainless steel is a stainless steel in which the ferrite phase and austenite phase coexist, and it is also a steel grade that combines excellent […]