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Why ferritic and austenitic stainless steel are not heat treatable?
Wiki User
∙ 12y ago
Ferritic and austenitic stainless steels are not heat treatable since "heat
treatable" is taken to mean that martensite may be made to form with relative ease upon
quenching austenite from an elevated temperature.
For ferritic stainless steels, austenite does not form upon heating, and, therefore, the
austenite-to-martensite transformation is not possible.
For austenitic stainless steels, the austenite phase field extends to such low temperatures
that the martensitic transformation does not occur.
Wiki User
∙ 12y ago
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Why do magnets stick to stainless steel knives but not stainless steel fridges?
Knives are usually made from hardened stainless steel typically a martensitic type, appliances would normally use a austenitic type which is softer and better for forming. Martensitic and ferritic stainless are normally magnetic due to their different structures
What is the density of stainless steel?
The density of austenitic steel varies according to the type or grade. For one of the commonly used austenitic steel like Type 304, the density is 8.0g/cm3.
Stainless steel chemical formula?
There are many types of Stainless Steel. Few are given below: 1. Austenitic Type: Iron, 18% Chromium, Nickel 2. Ferritic Type: Iron, 12% Chromium, 0.12% Carbon A typical formulation for orthodontic use has 18% chromium and 8% nickel
Why is stainless steel so important?
An alloy is when there are more than one elemnet present. So pure iron is not an alloy. If carbon is added to the iron that makes steel. If Chromium and Nickel are added that makes a grade of Austenitic Stainless steel which is thus an alloy not an element.
How much the weight of stainless steel panel thickness?
I read 0.29 lbs/cu.in. from: http://www.aksteel.com/pdf/markets_products/stainless/austenitic/304_304L_Data_Sheet.pdf Ryerson Steel lbs/sq. ft in sheet sizes http://www.ryerson.com/stocklist/StocklistServlet?COM=GetTable&ID=1160
Difference between duplex stainless steel and stainless steel?
There's no difference, cause duplex is a type of Stainless Steel, as so ferritic,austenitic,martensitic.
Can someone supply me with a 'Formula to calculate ferrite content in ferritic austenitic stainless steel'?
ferrite calculate formula?
What is duplex stainless steel?
Duplex stainless steel are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
Is stainless steel a ferritic steel?
There are many different types of stainless steel..440c,ATs34, 303, etc..so it heavily depends on what type you're referring to. Ferritic stainless steels would be the ones that have the best machining characteristics but is not heat treatable.
How do you tell the difference between austentic steel and stainless steel?
Austenitic is not a type of steel, it is a description for steel and many stainless steels can be austenitic. Austenitic steels means that they contain 7% or more chromium or nickel as their major alloy elements and they have the highest corrosion resistance but are not heat treatable.
What is the Property difference between steel and stainless steell?
When an alloy of steel contains more than approximately 10 ½% Chromium it can be classified as a stainless steel. There are several clasifications of stainless steel with varying propertys Martensitic, Ferritic, Austenitic and Duplex.
How does steel expand on supplying power to it?
As current passes through steel, it heats up from resistive heating. As it heats up, it expands. A typical coefficient of thermal expansion for steel is 13x10-6 m/m K but the exact coefficient of thermal expansion of steel depends on the type of steel. For example:Coefficient of Linear Thermal Expansion for:(10-6 m/m K)(10-6 in/in oF)Steel13.07.3Steel Stainless Austenitic (304)17.39.6Steel Stainless Austenitic (310)14.48.0Steel Stainless Austenitic (316)16.08.9Steel Stainless Ferritic (410)9.95.5
Why do magnets stick to stainless steel knives but not stainless steel fridges?
Knives are usually made from hardened stainless steel typically a martensitic type, appliances would normally use a austenitic type which is softer and better for forming. Martensitic and ferritic stainless are normally magnetic due to their different structures
Is ASTM A105 ferritic steel?
A105 is a spec found on some types of carbon steel round bars. The term "ferritic" would not apply.Ferritic stainless steels contain larger amounts of Cr which stabilizes the ferritic phase. Ferritic stainless steels are highly corrosion resistant, but far less durable than austenitic grades and cannot be hardened by heat treatment. They contain between 10.5% and 27% chromium and very little nickel, if any. Typical applications may include appliances, automotive and architectural trim (i.e., decorative purposes), as the cheapest stainless steels are found in this family (type 409).
What elements are used in 2 rupee coin?
The alloy is a ferritic stainless steel.
What has the author M L Glenn written?
M. L. Glenn has written: 'Low-chromium heat-resisting ferritic alloys strengthened by the chi phase' -- subject(s): Chromium-iron alloys, Heat resistant alloys, Intermetallic compounds, Precipitation hardening 'Reduced-chromium stainless steel substitutes containing silicon and aluminum' -- subject(s): Austenitic stainless steel, Silicon steel, Stainless Steel, Steel-aluminum alloys
Diffence between ferritic stainless steel and martensitic stainless steel?
Ferritic stainless steel are magnetic, containing no nickel and not hardened by heat treatment. For example 409 and 430 stainless steel Martensitic stainless steel are also magnetic and containing no nickel but hardened by heat treatment. For example 410 and 420 stainless steel
