the best charcoal bbq grill to buy Physical Properties of Stainless Steel
by:Longzhao BBQ
2019-09-07
Stainless steel is widely used in industrial and non-industrial fields.Industrial applications because of its high corrosion resistance, scalability, strength and several other physical properties.Learn more about all these properties and the metallurgical reasons behind them..In metallurgy, stainless steel is a steel alloy of at least 10 kinds, commonly referred to as SS in engineering terms.The chromium content is 5% by mass.It has a high degree of resistance to corrosion, rust and dyeing, so it is the name of "stainless steel.Despite the name, it was not completely tarnished.Prove that the most obvious is in the lowoxygen, high-Poor salinity and/or ventilation conditions.This steel is different from the chromium content of ordinary steel, which also greatly changes its performance.Some grades of SS also contain other elements, most often nickel, molybdenum and silicone to give it different physical and chemical properties.Stainless steel is not a single material but a name for the corrosion familyIron resistantbased alloys.The material was invented in 1912 by Harry Bree of the Bronx research laboratory in Sheffield, England, when he tried to find corrosionResistant alloy for barrel.The material invented by Brearley was a horse martensitic steel alloy containing 13% chromium, which was later industrialized.The first non-The industrial application of this material is on tableware, and Sheffield is famous for it.The research work carried out at the same time in France has promoted the development of stainless steel.Stainless steel has a wide range of physical properties, but we will see here stainless steel that is significantly different from ordinary carbon steel.The difference in this performance is due to the chromium content in the SS.SS is an iron-Base alloys containing at least 13% (weight) chromium for high oxidation resistance at ambient air temperatures.To obtain corrosion resistance in harsh environments, chromium content may increase to 26%.) Surface when exposed to oxygen in the environment.The layer is too thin to see, so the surface remains smooth and shiny.Although very thin, this layer does not penetrate water and air, protecting the metal below.The layer changes quickly when the surface is scratched, so that the alloy can be protected no matter which manufacturing method is used.For ordinary carbon steel, this corrosion resistance must be achieved by surface painting or other methods such as galvanized.SS usually has a strong resistance to acid attacks, although this performance depends largely on the type and concentration of the acid, the ambient temperature and the type of steel.) Even at high concentrations, at room temperature, models 316 and 317 can only resist at low concentrations.).Any type of stainless steel will be damaged by hydrochloric acid (HCl), so the two should never be used together.Oh), even at high concentrations and extreme temperatures.However, the same type of stainless steel, such as sodium hydroxide (sodium hydroxide) when exposed to a stronger substrate, or stainless steel containing chlorine, experiences corrosion and cracking at high temperatures and concentrations.This characteristic of any material is through itsZero temperature.In the low temperature range, the tensile strength of aogang is significantly higher than the ambient temperature.The toughness of the steel is also maintained at an excellent level.Ferrite, slats and precipitated hardened steel should not be used in sub-steelHowever, the temperature is zero due to a significant decrease in toughness.In some cases, toughness may also decrease at room temperature.The advantage of the work hardening grade of SS is that high strength can be significantly improved through cold machining.A combination of cold processing and annealing can be used to provide specific strength to the manufactured components.An example of this is the stretching of stainless steel wire.If the wire is to be used as a spring, the wire processing is hardened to a specific required strength;Although if it is used as a bendable tie, it will be annealing to obtain a softer material.At high temperature, the Austrian stainless steel maintains high strength.This is especially true for grades that contain a large amount of chromium and/or a large amount of silicon, nitrogen and rare earth elements.The ferrite grade with high content of chromium, such as 446, also shows a high thermal strength.High chromium content also helps stainless steel resist dirt at high temperatures.The extensibility of solid materials is its ability to deform under tensile stress;In other words, this is the ability of the material to be pulled into the wire.The toughness of stainless steel is very high.This property, combined with a high machining hardening rate, allows this material to be pulled into the wire using a strict process such as deep punching.The tensile strength of stainless steel is higher than that of various carbon steel.The tensile strength of duplex stainless steel is even higher than that of the bio grade.The highest tensile strength appears in the grade (431) and the grade of precipitation hardening (17-4 PH).The advantages of these grades are almost double that of SS's most commonly used grades 304 and 316.Stainless steel is a relatively poor electrical conductor, similar to ordinary carbon steel, the conductivity of copper is only a few percent.At the same time, ferritic and martensitic SS are magnetic when the ferrite grade is non-magnetic.magnetic.Stainless steel is corrosion resistant and dyed, low maintenance and gloss making it ideal for industrial or many other applications.Grinding the alloy into coils, paper, plates, rods, wires and pipes for tableware, cookware, household hardware, surgical instruments, industrial equipment, alloys as structures for automobiles and aerospace, and building materials in large buildings.Gate Arch in StArt Deco on the Niagara RiverThe calaradana Bridge in menocca, Spain is the first highway bridge built entirely by SS.The Petronas Twin Towers in Kuala Lumpur, Malaysia and the Jinmao Tower in Shanghai, China are the two tallest buildings in the world.
Custom message