What is ALLOY 25? 5

Haynes 25 (UNS R30605) cobalt-based alloy.

Density: -3Fe-04Si

It has excellent strength, good oxidation resistance at 980 (1800) temperature, very good sulfur resistance and relatively good scratch and wear resistance for gas turbine components, bearings and other industrial applications.

haynes 25/ l605/w-nr r30605aws 060

Applicable standard: AMS 5796

astm f90

NACE MR0175 ISO 15156-3 is a cobalt-nickel-chromium-tungsten alloy with good high temperature strength and good oxidation resistance when exposed to 980OC (1795OF) for a long time. It also has excellent resistance to sulfurization.

Excellent mechanical properties at high temperatures.

Yes Corrosion resistant at ambient temperature.

No Excellent corrosion resistance and mechanical properties at high temperatures.

No Resistant to oxidation.

Yes, the precipitate is hardenable.

Yes Applications include:

Alloy20 is equivalent to China's NS1403 NS143 corrosion-resistant alloyShanghai Xiangqia metal team, looking forward to your consultation!

Physical properties: density: g cm3 melting point: 1357-1430

Characteristics: Alloy20 stainless steel has good corrosion resistance to sulfuric acid chemicals, and good resistance to chloride, phosphoric acid and other environmental corrosion. It resists sensitization and resultant mesocrystalline corrosion with stable niobium-containing elements, and it also has good mechanical properties and processability.

Applications: Chemical, food, pharmaceutical and plastics industries, heat exchangers, pickling equipment, synthetic rubber production equipment, pumps, valves and pipelines.

The alloy is a stainless steel with extremely high corrosion resistance to sulfuric acid. It can be widely used in high-concentration, high-temperature sulfuric acid environment. In addition, it also has excellent resistance to intergranular corrosion and stress corrosion cracking.

Processability.

It can be treated in the same way as ordinary austenitic stainless steels.

Weldability welding, like quasi-austenitic stainless steels, can be TIG, MIG and manual arc welding, and due to its NB content, we recommend minimizing heat treatment. Use ER320 and ER320LR for solder.

MachinabilityThe machinability is about the same as that of standard austenitic stainless steels. For cutting, use high-speed steel tools or cemented carbide tools, and it is best to slow down the advance speed and increase the depth of cut.

Heat treatment is stable The heat treatment condition is 925 1010 (ASTM A480 A480M specified conditions), and it must be quenched after heat treatment.

Alloy 20 is a nickel-chromium-iron alloy. Corresponding national standard: NS CR20Ni35Mo3Cu4NB.

Product name: NS143 corrosion-resistant alloy.

Product grade: NS143, Alloy20, N08020, Alloy20CB-3, product form: bar, tube, plate, ring, forging.

Delivery condition: hot-rolled, solid solution.

The grade indications of NS143 in different national standards are:

Germany China NS143 0CR20NI35MO3CU4NB USA Incoloy Alloy 20 Alloy Alloy20CB-3 UNS N08020(NO8020) Germany The above are all the same product, but they are different in different national standards.

NS143 Chemical Composition:

c ≤si ≤ 1

mn ≤ 2

p ≤s ≤cr ：

mo :fe : Margin.

ni ：cu ：

Others: NB

NS143 Product Features:

NS143 Alloy 20 alloy corrosion resistant alloy is a chromium-nickel-molybdenum-copper solution-strengthened iron-nickel-based alloy, which is characterized by corrosion resistance of oxidation-reducing composite media, and NS143 has good corrosion resistance in sulfuric acid, nitric acid and its mixed acid and other redox media. NS143 especially in the environment of dilute sulfuric acid (concentration below 30%) can play its best advantages of good corrosion resistance, with excellent resistance to stress corrosion cracking and good local corrosion resistance, NS143 has satisfactory corrosion resistance characteristics in many chemical process media, including highly aggressive inorganic acid solution, chlorine and various media containing chloride, dry chlorine, formic acid and acetic acid, anhydride, seawater and salt water.

NS143 Applications:

NS143 is used in sulfuric acid environments and sulfuric acid solutions containing halogen ions and metal ions, such as hydrometallurgy and sulfuric acid industrial plants.

NS143 alloy has excellent hot, cold and welding properties, and is also easy to cast.

NS143 is mainly used in various chemical processing (such as oil refining, pharmaceutical, fertilizer and synthetic rubber, etc.), food processing, textile, paper and hydrometallurgical industries, NS143 is used in reactors, heat exchangers, storage tanks, pumps and valves and other components under the conditions of sulfuric acid, nitrate and sulfuric acid mixed with phosphoric acid and other reducing media.

NS143 Product Order:

NS143 conventional specifications of the company has stock and blanks, in addition to customized production according to customer drawings, short delivery cycle, the development department of the research institute can also organize the production of NS143 materials according to the use of different customer working conditions.

NS143 Delivery Status:

Hot rolled, solid solution, forging put away.

alloy20

Alloy20 is equivalent to domestic NS143 corrosion-resistant alloy.

Alloy20 is equivalent to Chinese material NS1403 NS143, N08020 iron-nickel alloy, corrosion resistance alloy N08020 characteristics and uses: Carpenter20 alloy

Corrosion-resistant alloy: N08020 alloy has excellent resistance to corrosion, cracking and good resistance to local reducing composite media corrosion.

N08020 alloy has excellent corrosion resistance to sulfuric acid and phosphoric acid, and has good mechanical properties below 500. Resistant to oxidation-reduction composite media.

Typical application: It is suitable for sulfuric acid environment and industrial plants containing sulfuric acid ions and metal ions.

N08020 Chemical Composition:

c ≤si ≤ 1

mn ≤ 2

p ≤s ≤

cr ：mo ：

fe : Margin.

ni ：cu ：

Others: NB

Chinese and foreign comparison table:

trademark China Grade UNS Jis Din en New Grade Old Grade.

alloy20 ns1403 ns143 n08020 —

Equivalent to China's NS143 or 0cr20Ni35Mo3Cu4NB. Its chemical composition is as follows:

C: Manganese Mn:

Nickel Ni: Silicon Si:

Phosphorus p: sulfur s:

Chromium Cr: Niobium NB:

Aluminum Al: Titanium Ti:

Copper Cu: Molybdenum Mo:

Alloy 20 is the American grade UNS N08020, a nickel-chromium-iron alloy equivalent to China's duplex stainless steel 0Cr25Ni20. ASTM B463 for plates, ASTM B729 for tubes, ASTM B473 for bars, and ASTM B564 for forgings.

Alloy20 alloy is a corrosion-resistant alloy with many excellent properties, with good resistance to oxidation and moderate reducing corrosion, excellent resistance to stress corrosion, cracking ability and good local corrosion resistance, and satisfactory corrosion resistance characteristics in many chemical process media.

Alloy20 is a nickel-chromium-iron alloy that is equivalent to China's duplex stainless steel 0Cr25Ni20.

0CR25Ni20: heat-resistant stainless steel, which is a high-chromium inner nickel-tolerant austenitic stainless steel, which has excellent corrosion resistance in oxidizing medium and good high-temperature mechanical properties, so it can be used for both corrosion-resistant parts and high-temperature parts.

Chemical composition. Carbon C: Silicon Si:

Manganese mn:sulfur s:

Phosphorus p:

Chromium Cr: Nickel Ni:

Mechanical properties. Tensile strength b (mpa): 515

Conditional yield strength (mpa): 205

Elongation δ5 (%35

Cross-sectional shrinkage 50

Hardness: HBW 182; hrb≤90;hv≤200

Alloy 20 is the American grade UNS N08020, a nickel-chromium-iron alloy equivalent to the Chinese duplex stainless steel version 0Cr25Ni20. Plate standard.

ASTM B463, ASTM B729 for tubes, ASTM B473 for bars, ASTM B564 for forgings.

Stainless steel: The corrosion resistance of rusty steel decreases with the increase of carbon content, therefore, the carbon content of most stainless steels is low, the maximum is not exceeded, and the WC (carbon content) of some steels is even lower than that of 00Cr12). The main alloying element in stainless steel is CR (chromium), and it is only when the CR content reaches a certain value that the steel is corrosion-resistant.

Therefore, stainless steel generally has a cr (chromium) content of at least. Stainless steel also contains elements such as Ni, Ti, Mn, N, Nb, Mo, Si, and Cu. The corrosion resistance of stainless steel decreases with the increase of carbon content, therefore, the carbon content of most stainless steels is low, the maximum is not exceeded, and the WC (carbon content) of some steels is even lower than that of e.g. 00Cr12).

The main alloying element in stainless steel (chromium), steel is corrosion resistant only when the CR content reaches a certain value. Therefore, stainless steel generally has a cr (chromium) content of at least. Stainless steel also contains elements such as Ni, Ti, Mn, N, Nb, Mo, Si, and Cu.

Alloy 20 is a nickel-chromium-iron alloy. Sheet standard ASTM B463, pipe standard ASTM B729, bar.

It belongs to the standard ASTM B473, and the forging standard is ASTM B564.

Corresponding national standard: NS CR20Ni35Mo3Cu4NB.

Alloy 20 is the American grade copy of UNS N08020, a nickel-chromium-iron BAI alloy, equivalent to China's duplex stainless steel 0Cr25Ni20. DU standard ZHIASTM B463 for plates, ASTM B729 for pipes, ASTM B473 for bars, ASTM B564 for forgings.

alloy20

Corresponding grades: national standard: NS1403, NS143, 20NB, 0CR20NI35MO3CU3NB, American standard: INCLOY020, Alloy20, NO8020, German standard: NICR20CUMO, NICROFER3620NB.

Physical properties: density, melting point: 1350 1370, specific heat capacity: 500J, thermal conductivity: W(, elastic modulus: 200 MPa.

incoloy020 Machining & Welding:

The alloy hot forming temperature is 970 1065 degrees, and it is not suitable for forming operations at the sensitive temperature of 650 degrees of intergranular corrosion, and the cold working of this alloy is similar to chromium-nickel stainless steel. The heat treatment should be stabilized at 940 degrees, and the intermediate annealing temperature should be higher than 1050 degrees for solution softening annealing, and the usual welding method can be used.

incoloy020 Applications:

It is widely used in the chemical processing industry, hot seawater and hydrometallurgy. It is mainly used for heat exchangers, pipelines, valves, pumps, etc. in the treatment of hot H2SO4, chloride-containing solutions, Na2SO3 and other environments.

230 alloy.

Alloy 230 is a nickel-chromium-tungsten-molybdenum alloy with excellent high-temperature strength, oxidation resistance, ultra-long thermal stability and good machinability.

230 alloy.

haynes®230

1.High temperature strength, thermal stability, environmental resistance.

Alloy 230 contains nickel, chromium, tungsten and molybdenum, has excellent high-temperature strength, even if exposed to a high temperature environment of 1149 °C for a long time, it has outstanding oxidation resistance, especially resistance to nitriding environment, and has very good long-term thermal stability. The material can be machined, molded, processed and cast. Compared with other superalloys, alloy 230 has lower thermal expansion characteristics and can resist particle coarsening for a long time under high temperature conditions.

2.Easy to process.

Alloy 230 has good forming and welding properties. It can be forged, and if the high temperature is high enough to bring the entire workpiece to 1177°C, it can also be hot-worked. Due to its good ductility, alloy 230 can be cold formed.

Whether hot or cold worked, the finished part needs to be annealed and cooled quickly to restore the material's optimal properties. The alloy can be welded using a variety of methods, including GTAW (tungsten inert gas welding), GMAW (metal gas shielded welding) and resistance welding.

3.Heat treatment.

Alloy 230 is usually supplied in a forged solution. The solution treatment is available in a temperature range of 1177-1246°C, followed by rapid cooling or water quenching for optimal performance.

If the annealing temperature is lower than the solution temperature, carbonization precipitation will occur, which will affect the strength and ductility of alloy 230.

4.Foundry.

Alloy 230 can be used in traditional sand casting or vacuum investment casting. It is recommended to use the upper limit of the silicone level range in the specification to improve flowability. Depending on the performance requirements, cast parts can be available in both casting and solution states.

5.A wide range of delivery shapes.

Alloy 230 is available in the form of thick plates, sheets, strips, foils, blocks, round bars, wires, welded products, tubes.

6.Apply.

Alloy 230's excellent combination of properties makes it suitable for a wide range of applications in the aerospace and energy industries, such as combustion chambers, relay channels, flame stabilizers, thermocouple protective jackets, and other gas turbine components. In the chemical industry, 230 alloy is used to make catalyst grid frames and put them into nitrogen burners, as well as high-strength thermocouple protective sleeves, high-temperature heat exchangers, pipes, high-temperature corrugated pipes, etc.

In the industrial electric heating industry, Alloy 230 has a variety of applications, such as the manufacture of furnace chambers, fixtures, flame protection covers for combustion chambers, heat exchanger inner shells, dampers, nitriding furnace inner shells, baskets for heat treatment, grilles, trays, etc.