Precision Alloys have special actual physical and mechanical qualities, and are extensively applied in the important factors and devices of precision motor, electrical appliance, instruments and meters, telecommunication equipments, and precision devices.

According to the application and specialties, precision alloys are break up into hard magnetic alloy, magnetically gentle alloy, elastic alloy, expansion alloy, thermo bimetal, resistance alloy, thermocouple alloy, electric powered conduction alloy, electric powered contact alloy, condition memory alloy, superconducting alloy and so on.

one. Description
 
Soft Magnetic Alloy is one kind of alloy with high permeability  and low coercivity in weak magnetic field. This kind of alloy is widely used in radio electronics industry, precision instruments, remote control and automatic control system, generally, it is mainly used in energy conversion and information processing.
 
 
254SMO
 

 
 
254SMO Chemical composition:
 

254SMO Physical properties :
 

254SMO minimum mechanical qualities in the room temperature:
 

 
 
Attribute:
The substantial focus of molybdenum,chromium and nitrogen manufactured 254SMO has extremely great resistance to pitting and crevice corrosion performance. Copper improved corrosion resistance in some of the acid . In addition, owing to its substantial content material of nickel,chromium and molybdenum, so that 254SMO have a excellent pressure toughness corrosion cracking overall performance.
1.A lot of a vast assortment use of knowledge has shown that even iin greater temperatures, 254SMO in the sea h2o is also extremely resistant to corrosion efficiency hole, only a couple of types of stainless steel with this overall performance.
2.254SMO these kinds of as bleach paper needed for the generation of acidic resolution and the answer halide oxidative corrosion resistance and corrosion resistance can be in comparison to the most resilient in the foundation alloy of nickel and titanium alloys.
3.254SMO because of to a large nitrogen articles, so its mechanical energy than other varieties of austenitic stainless steel is larger. In addition, 254SMO also highly scalable and effect power and very good weldability.
four.254SMO with higher molybdenum material can make it increased fee of oxidation in the annealing , which after the acid cleaning with rough surface area than normal stainless metal is much more typical than the rough surface. Nonetheless,has not adversely influenced for the corrosion resistance of this steel .
 
Metallurgical framework
254SMO is experience-centered cubic lattice structure. In get to receive austenitic composition, 254SMO general annealing in the 1150-1200ºC.In some cases, the substance possibly with the traces of steel center section (χ phase and α-stage). Nevertheless,their affect strength and corrosion resistance are not adversely influenced in standard situation. When placed in the range of 600-1000ºC, they may possibly section in the grain boundary precipitation.
 
Corrosion resistance
254SMO with quite low carbon content material, which means that the risk by the heating brought on of carbide precipitation is quite little. Even in the 600-1000ºC after one hour sensitization even now able to Strauss via the intergranular corrosion test (Strauss Test ASTMA262 buy E).Nonetheless, due to the fact of the higher-alloy steel content. In the above-pointed out temperature variety intermetallic period with the likelihood of steel in the grain boundary precipitation. These sediments do not make it happen intergranular corrosion in the corrosive media purposes, then,welding can be carried out CZPT intergranular corrosion.But in the warmth of concentrated nitric acid, these sediments might be caused intergranular corrosion in heat-influenced zone. If ordinary stainless steel in the answer that containing chloride, bromide or iodide,it will demonstrate pitting, crevice corrosion or anxiety corrosion cracking sort by localized corrosion. However, in some circumstances,the existence of halide will pace up the uniform corrosion. Specifically in the non-oxidizing acid. In pure sulfuric acid, 254SMO with a significantly higher corrosion resistance than 316(widespread stainless steel),but with abated corrosion resistance when compared to 904L (NO8904) stainless metal in high concentrations. In the sulfuric acid that contains chloride ions , 254SMO with the premier corrosion resistance potential.The 316 can not be utilized for stainless steel in hydrochloric acid because it could take place localized corrosion and uniform corrosion, but 254SMO can be utilized in diluted hydrochloric acid in general temperatures,uder the border region do not need to have to fear about corrosion happened. Nonetheless, we need to try to stay away from the hole cracks. In the fluoride silicate (H2SiF4) and hydrofluoric acid (HF), the corrosion resistance of ordinary stainless metal is very restricted, and 254SMO can be used in a quite extensive temperature and focus.
 
Applied area:254SMO is a mult-objective materials can be utilised in many industrial applications:
one. Petroleum, petrochemical gear, petro-chemical tools, this sort of as the bellows. 
2. Pulp and paper bleaching equipment, this kind of as pulp cooking, bleaching, washing filters used in the barrel and cylinder pressure rollers, and so on. 
three. Power plant flue fuel desulphurization products, the use of the primary elements: the absorption tower, flue and stopping plate, internal part,spray method. 
4. At sea or sea h2o processing program, these kinds of as power crops making use of sea h2o to great the skinny-walled Condenser, desalination of sea drinking water processing gear,can be used even though the drinking water could not flow in the unit.
five. Desalination industries, this kind of as salt or desalination tools. 
six. Warmth exchanger, in specific in the doing work setting of chloride ion.

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