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Anonymous users2024-02-071: Grade 253mA nickel heat-resistant austenitic stainless steel.
2. Chemical composition: carbon (C), phosphorus (S), nickel (Ni), silicon (Si), chromium (Cr), nitrogen (N), cerium (CE).
Three: the scope of application, the field of application:
253mA is widely used in sintering equipment, blast furnace equipment, steel melting, furnace and continuous casting equipment, rolling mills (heating furnaces), heat treatment furnaces and accessories, mineral equipment and cement production equipment, etc.
Four: Physical properties:
Tensile strength: b 650MPa, yield strength b 420MPa: elongation: δ 40%.
5. Overview: The chemical composition of 253mA is balanced, which makes the steel have suitable comprehensive properties in the temperature range of 850 -1100, extremely high oxidation resistance, and the oxide scale temperature is as high as 1150; Very high creep resistance and creep rupture strength; It has good resistance to high temperature corrosion and balance brush corrosion in most gas media; High yield strength and tensile strength at high temperature; Good formability and weldability, as well as sufficient machinability.
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Anonymous users2024-02-06<>astm a 240，a 276，a 312
a 358，a 409，a 473，a 479
a 480，a 813，a 814
Overview of 253 mA stainless steel.
Stainless steel 253 mA is a dilute austenitic heat-resistant alloy with high strength and excellent resistance to sunning. 253 mA maintains its heat resistance through advanced control of microalloy additives. The combination of rare earth metals and silicon provides excellent resistance to sunning up to 2000°F.
Dispersions of nitrogen, carbon, and rare earth and alkali metal oxides combine to provide creep rupture strength comparable to nickel-based alloys. A variety of components that require high strength at high temperatures, such as heat exchangers, kilns, stacking dampers, and oven components, are common applications for 253mA.
253 mA chemical composition,
cr：ni：
c：si：mn：≤
p：≤s：≤
n:ce:fe: margin.
Some characteristics of 253 MA.
1. Excellent anti-yangization performance up to 2000°F
2. High creep - breaking strength.
What type of applications is 253 mA used?
1. Burner, boiler nozzle.
2. Petrochemical and refinery pipe hangers.
3. Heat exchanger.
4. Expanding the bellows.
5. Stacking dampers.
Stainless steel 253 mA is used for fabrication and welding.
Stainless steel 253 mA is easy to fabricate through standard commercial procedures. Compared to carbon steel, stainless steel is tougher and easy to machine quickly. Coincidentally, the propensity for work hardening of this alloy can be minimized in the case of positive feeds and low velocities combined with large quantities of cutting fluid.
Stainless steel 253 mA can be welded using conventional welding processes. The filler metal should have a similar composition to the hall circle to obtain greater weld integrity and performance.
ASTM specification.
Welding of plates, rods, pipes, pipes.
a240, a480, a167 a276, a479 a213, a312 a312, a358, a409, a813, a814
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Anonymous users2024-02-05Kiss! Hello, very high wheel which Xing will answer your <>
The difference between stainless steel 2532 and 2520 is as follows: the material is different Oh is one of the grades of stainless steel, it belongs to austenitic stainless steel, divided according to the composition, because the content of nickel chromium is relatively high, which increases its corrosion resistance, acid resistance, and high temperature resistance. 2. After the austenitic stainless steel increases the carbon content, its strength has been improved, so the composition and content of different chemical elements will play a decisive role in the performance characteristics of stainless steel This material can be burned to make stainless steel, steel plate or steel plate, steel pipe, because its corrosion resistance is more prominent, so it can be used as angle steel, flat steel and so on.
And its high-temperature resistant working temperature can reach more than 1200 degrees, and the continuous use temperature exceeds 1100 degrees Stainless steel is a long strip of steel, if it is used as a large number of pipelines, such as pipelines for transporting oil or natural gas, because the weight is relatively light, so the construction is also more convenient. Hope mine can help you <>
Do you have any other questions?
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Anonymous users2024-02-04Product name: 253MA UNSS30815
International common name: 253MA, S30815
253 mA chemical composition,
cs≤sicrnimo --
Cerium mechanical properties: tensile strength: b 650mpa, yield strength b 420mpa: elongation: δ 40%.
Corrosion resistance and main use environment: 253mA is an alloy obtained by increasing nitrogen content and adding rare earth elements for microalloying on the basis of alloy, which has good oxidation resistance, good high temperature corrosion resistance and good high temperature mechanical strength. The optimal operating temperature range is 850-1100 °C, and if used in the range of 600 to 850 °C, structural changes will result in reduced impact toughness at room temperature.
The chemical composition of 253mA is balanced, which makes the steel have the most suitable comprehensive properties in the temperature range of 850 -1100, extremely high oxidation resistance, and the oxide scale temperature is as high as 1150; Extremely high creep deformation resistance and creep rupture strength; It has good resistance to high temperature corrosion and balance brush corrosion in most gas media; High yield strength and tensile strength at high temperature; Good formability and weldability, as well as sufficient machinability.
The application fields are: 253mA is widely used in sintering equipment, blast furnace equipment, steel melting, furnace and continuous casting equipment, rolling mills (heating furnaces), heat treatment furnaces and accessories, mineral equipment and cement production equipment, etc.
253mA corresponding grade: German standard: X9crnisince21-11-2, American standard: S30815, F45, 253ma.
Scope of use of 253MA: widely used in sintering equipment, blast furnace equipment, steel melting, melting furnace and continuous casting equipment, rolling mill (heating furnace), heat treatment furnace and accessories, mineral equipment and cement production equipment, etc. 253mA steel can be used in pressure-bearing applications up to 900 degrees and non-pressure-bearing high-temperature parts with operating temperatures up to 1150.
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Anonymous users2024-02-03253MA (UNS S30815) F45 heat-resistant austenitic stainless steel.
253MA is a heat-resistant austenitic stainless steel designed for use where high creep strength and outstanding corrosion resistance are required. Its operating temperature scale is 850 1100 .
The chemical composition of 253mA is balanced, which makes the steel have the most suitable induction function in the temperature scale of 850 -1100, extremely high oxidation resistance, and the oxide scale temperature is as high as 1150; Extremely high creep resistance and creep rupture strength; In most gas media, it has excellent resistance to high temperature corrosion and resistance to balanced brush corrosion; High yield strength and tensile strength at high temperatures; Outstanding formability and weldability, as well as machinability to satisfy.
In addition to the alloying elements chromium and nickel, 253mA stainless steel is rich in a small number of rare earth metals, which then significantly improve its oxidation resistance. Nitrogen was added to improve creep function and turn this steel into a thoroughly austenite. Although the chromium and nickel content is relatively low, this stainless steel has the same high-temperature characteristics as highly alloyed alloy steels and nickel-based alloys in many cases.
Scale of use: 253mA is widely used in sintering equipment, blast furnace equipment, steel melting, furnace and continuous casting equipment, rolling mills (heating furnaces), heat treatment furnaces and accessories, mineral equipment and cement production equipment. 253mA steel can be used in 900 °C pressure-bearing applications and non-pressurized high-temperature parts with operating temperatures up to 1150°C.
Chemical composition: cmn p s sicrnimo --n cerium.
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The true meaning of the twenty-six letters of the English alphabet a--accept (accept) Love him, accept everything about him, even his shortcomings b--belif (trust) do not trust the other party's love, only the end of breaking up c--care (care) The degree of care just shows how much you value him d--digest (digest) Digest and absorb his love, you will find that you are more beautiful e--enjoy (appreciation) Appreciate everything about the other party, you will love more happily f--freedom Even if you are married, you should give each other free and secret space g--give. But if you don't pay, you won't get anything h--heart The most important thing in love is the heart, treat it sincerely, and love with your heart i--independence Relying too much on the other party will become a heavy burden for the other party j--jealousy Appropriate jealousy shows that you value him, but remember to do so in moderation k--kiss A kiss is worth a thousand words L--love How can there be love without love? m--mature Be more mature and see love more thoroughly n--natural Don't be pretentious, the love that flows naturally will flow o--observe the preferences of your lover, and your heart is more precious than a gift p--protect Love is about protecting each other's bodies and minds q--quarter Leniency is the key to love, because you are the one who loves him the most r--receive: He gives, you receive, Feelings will go further s--share (sharing and sharing) If you love him, you will be able to share happiness and sorrow with him t--tender (gentle) Of course, the lover must love gently u--under (understand) stand more in the other person's position, he can understand your other half better v--veracity (honesty) For love, you need to be a hundred times more honest w--wait (waiting) It is important that you grow with him x--"x"(Multiplication symbol) Multiply your love without stopping, and the love will be infinite y--yearn (missing) When you are not together, remember to often say, "I miss you very much." z--zest (enthusiasm) The right enthusiasm can add a lot of fun, and the team will solve it for you.
The 26 letters and phonetic transcriptions are as follows: >>>More
First of all, you don't love her much, you write about the person who loves you very much, not the person you love very much, which shows that you compare yourself, selfishness and self are different, self-centered, and you are 26 years old and still have problems because of such incidents, which means that you are immature, have not experienced setbacks, have little experience in love, and have a drink with friends, and it will get better slowly.