Precision Alloys have special bodily and mechanical qualities, and are extensively applied in the essential elements and devices of precision motor, electrical appliance, devices and meters, telecommunication equipments, and precision devices.

In accordance 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 conduction alloy, electrical get in touch with 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 homes in the room temperature:
 

 
 
Characteristic:
The large concentration of molybdenum,chromium and nitrogen produced 254SMO has really good resistance to pitting and crevice corrosion efficiency. Copper improved corrosion resistance in some of the acid . In addition, owing to its higher articles of nickel,chromium and molybdenum, so that 254SMO have a great stress toughness corrosion cracking overall performance.
one.A whole lot of a wide selection use of encounter has shown that even iin larger temperatures, 254SMO in the sea water is also hugely resistant to corrosion overall performance gap, only a number of kinds of stainless metal with this efficiency.
two.254SMO this kind of as bleach paper essential for the production of acidic solution and the resolution 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 high nitrogen content, so its mechanical strength than other varieties of austenitic stainless steel is greater. In addition, 254SMO also very scalable and influence toughness and very good weldability.
four.254SMO with substantial molybdenum content can make it larger charge of oxidation in the annealing , which following the acid cleaning with rough surface than normal stainless steel is more widespread than the rough surface. Even so,has not adversely afflicted for the corrosion resistance of this steel .
 
Metallurgical framework
254SMO is face-centered cubic lattice framework. In order to receive austenitic composition, 254SMO general annealing in the 1150-1200ºC.In some cases, the material probably with the traces of metal middle phase (χ stage and α-stage). Nonetheless,their influence strength and corrosion resistance are not adversely influenced in standard situations. When placed in the variety of 600-1000ºC, they could period in the grain boundary precipitation.
 
Corrosion resistance
254SMO with very lower carbon material, which indicates that the risk by the heating triggered of carbide precipitation is very small. Even in the 600-1000ºC after 1 hour sensitization still in a position to Strauss through the intergranular corrosion check (Strauss Examination ASTMA262 get E).Nevertheless, because of the substantial-alloy steel content. In the over-pointed out temperature variety intermetallic period with the possibility of metallic in the grain boundary precipitation. These sediments do not make it arise intergranular corrosion in the corrosive media programs, then,welding can be carried out CZPT intergranular corrosion.But in the warmth of concentrated nitric acid, these sediments might be brought on intergranular corrosion in warmth-affected zone. If regular stainless metal in the answer that that contains chloride, bromide or iodide,it will present pitting, crevice corrosion or tension corrosion cracking kind by localized corrosion. Nevertheless, in some situations,the existence of halide will pace up the uniform corrosion. Specifically in the non-oxidizing acid. In pure sulfuric acid, 254SMO with a a lot better corrosion resistance than 316(frequent stainless steel),but with abated corrosion resistance compared to 904L (NO8904) stainless metal in large concentrations. In the sulfuric acid made up of chloride ions , 254SMO with the premier corrosion resistance capacity.The 316 can not be employed for stainless steel in hydrochloric acid since it may possibly arise localized corrosion and uniform corrosion, but 254SMO can be utilized in diluted hydrochloric acid in standard temperatures,uder the border region do not require to fret about corrosion transpired. Nevertheless, we must try out to keep away from the hole cracks. In the fluoride silicate (H2SiF4) and hydrofluoric acid (HF), the corrosion resistance of ordinary stainless steel is really constrained, and 254SMO can be utilized in a really wide temperature and concentration.
 
Utilized discipline:254SMO is a mult-objective materials can be employed in many industrial programs:
1. Petroleum, petrochemical gear, petro-chemical equipment, such as the bellows. 
2. Pulp and paper bleaching tools, this sort of as pulp cooking, bleaching, washing filters employed in the barrel and cylinder pressure rollers, and so on. 
three. Electrical power plant flue fuel desulphurization equipment, the use of the primary areas: the absorption tower, flue and halting plate, inside component,spray system. 
4. At sea or sea drinking water processing system, this kind of as electricity vegetation making use of sea drinking water to amazing the slim-walled Condenser, desalination of sea h2o processing products,can be used even however the water could not flow in the unit.
5. Desalination industries, this kind of as salt or desalination tools. 
6. Warmth exchanger, in specific in the functioning setting of chloride ion.

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