What material is Ni-SpanC902 nickel chromium iron alloy n2pt

 　　When the deformation rate reaches 15%, it is about twice that of 18-8 stainless steel. Hastelloy alloy also has a medium temperature sensitization zone, and its sensitization tendency increases with the increase of deformation rate. When the temperature is high, Hastelloy alloy is prone to absorbing harmful elements, resulting in a decrease in its mechanical properties and corrosion resistance. The simple point is that nickel base alloy contains molybdenum, more chromium and molybdenum, stronger acid corrosion resistance, and Hastelloy is an ultra-low carbon type. Ni, Mo, Cr series nickel base, corrosion resistant, high temperature resistant material Hastelloy is used in harsh industrial environments such as chemurgy, nuclear facilities, biological pharmaceuticals, etc. because of its good high-temperature resistance, corrosion resistance in the weld affected zone, good long-term thermal stability and processability. It also exhibits excellent corrosion resistance, uniform corrosion resistance, and intergranular corrosion resistance in media containing wet oxygen, sulfuric acid, acetic acid, formic acid, and strong oxidizing salts. Therefore, it is also widely used in the chemical industry, and the conductivity and thermal conductivity of Hastelloy gold are higher than those of low-carbon steel.

　　Due to its high molybdenum content, low-temperature tempering (around 475 ℃) results in severe brittleness. According to reference [3], the Hastelloy B-3 alloy forms harmful Ni Mo brittle phases at grain boundaries at temperatures ranging from 550 to 800 ℃, resulting in a rapid decrease in ductility and a decrease in the hot forming processing performance of the alloy. If hot forming is used, the processing temperature should be less than 425 ℃. Hastelloy B series alloys exhibit superior performance in reducing environments. Good corrosion resistance to hydrogen chloride gas, sulfuric acid, acetic acid, etc. When there are oxidizing ions (iron, copper ions) in the solution, it will accelerate the corrosion of the material. (Therefore, iron ion pollution should also be avoided in processing and manufacturing.) Currently, the standard test method for the intergranular corrosion resistance of Hastelloy B-2 alloy in China and other countries is the atmospheric boiling method, and the evaluation method is the weight loss method. Due to the fact that Hastelloy B-2 alloy is corrosion-resistant, the tendency of intergranular corrosion in Hastelloy B-2 alloy tested by atmospheric boiling method is quite similar. Currently, the second generation materials N10665 (B-2), N10276 (C-276), N06022 (C-22), N06455 (C-4), and N06985 (G) are widely used.

　　In order to improve creep strength and add Al, Nimonic80 (Ni-20Cr-2.5Ti-1.3Al) was developed; In the mid-1940s, the United States, Russia, and the mid-1950s also developed nickel based alloys. The development of nickel based alloys includes two aspects, namely the improvement of alloy composition and the innovation of production technology. Due to its excellent corrosion resistance, nickel based alloys are widely used in chemical equipment, nuclear industry, marine engineering, space industry, salt manufacturing equipment, environmental protection engineering, etc. However, nickel based alloys have a high nickel content, making the use of all metal nickel alloys expensive. The emergence of nickel based alloy composite plates not only reduces the thickness and cost of nickel based alloy use, but also ensures the integrity and safety of the structure with basic carbon steel base layer. It has been a great invention and new direction of material application since the 1960s and 1970s. The corrosion resistance of nickel copper alloy 400 is the same as that of pure nickel under reducing medium conditions.

　　It is a corrosion-resistant type of modern metal material. Mainly resistant to wet chlorine, various oxidizing chlorides, chloride salt solutions, sulfuric acid and oxidizing salts, with excellent corrosion resistance at low and medium temperatures. However, Hastelloy C-276 alloy does not have enough Cr to resist corrosion in strong oxidizing environments. It is generally used for welding Hastelloy C276 (UNSN10276) plates, as well as for welding nickel based alloys and dissimilar steels, or other low-grade nickel alloys (such as 825 alloy) or special stainless steels (S904L, 1. N08367, etc.), and is also used for surfacing nickel chromium molybdenum alloy composite layers on steel. HASTELLOYC-22 is a universal nickel chromium molybdenum tungsten alloy, compared to other existing nickel chromium molybdenum alloys (including HASTELLOYC-C-625 alloy). It has better and more sex. C-22 alloy is excellent for pitting corrosion, crevice corrosion and stress corrosion cracking.

　　However, the corrosion resistance of nickel chromium molybdenum alloy is not as good as that of nickel molybdenum alloy. The corrosion resistance of Monel400 is generally superior to nickel copper. It is more resistant to corrosion in reducing media and oxidizing media than pure nickel, and has excellent corrosion resistance to sulfuric acid, phosphoric acid, and carbon. It is resistant to the corrosion of hydrochloric acid and has excellent corrosion resistance to hot concentrated alkali. Monel400 alloy has corrosion resistance in fluorine gas, sulfuric acid, hydrofluoric acid, and their derivatives. At the same time, it has better corrosion resistance in seawater than copper based alloys. In order to prevent ammonium salt corrosion, Inconel600/800 series nickel based alloys are often used in the high-pressure air cooling pipelines before and after hydrogenation units. Inconel is also a common material for oxygen pipeline under severe working conditions of high-pressure pure oxygen Coal gasification device to avoid burning of oxygen pipeline (see SHSH3196 and GBGB16912. Additional notes for pressure pipeline personnel). Nickel based alloys have effects on reducing and oxidizing properties.

　　There are 23 types of nickel based corrosion resistant alloys and 24 types of high-temperature alloys published in 1994. The correspondence between some grades and grades is shown in Table 11. Nickel based alloy composite steel plates generally go through dozens of processes from raw material inspection to packaging and shipping of finished products. The main processes are as follows: raw material inspection at the factory → substrate and composite material marking and cutting → substrate polishing and rust removal → composite material splicing → composite material leveling → substrate Composite material distribution → composite → non-destructive testing → repair welding of unbound areas → heat treatment of composite plates → leveling → performance inspection → secondary non-destructive testing → edge leveling and sizing → surface pickling and passivation or mechanical polishing of composite materials → finished product inspection → packaging and other processes. Research has shown that the effect of alloying elements on improving the corrosion resistance of alloys comes from the stability of the passivation film formed on the surface of nickel alloys. The nickel content in nickel based alloys is above 30%, and those with W (Ni+Fe) ≥ 50% are called iron nickel based corrosion resistant alloys. A nickel based corrosion-resistant alloy with W (Ni) ≥ 50% can be considered nickel based corrosion-resistant in practical use.

　　What is the material of Ni-SpanC902 nickel chromium iron alloy

　　Practice has shown that an appropriate heat treatment process can not only eliminate the stress generated during the process, restore and improve the mechanical properties of the substrate, but also ensure the corrosion resistance of the laminated nickel based alloy. The corrosion resistance testing of the composite nickel based alloy layer is an important indicator for the performance testing of composite plates. The commonly used intergranular corrosion test method for nickel based alloys is ASTMG28 (A and B methods), which evaluates the intergranular corrosion tendency of nickel based alloys. The heat treatment after the composite plate is a key process to ensure the corrosion resistance of the composite nickel based alloy. Nickel chromium molybdenum welding wire ERNiCrMo - used for welding INCONELINCONELINCONEL25-6Mo alloy; Welding between ultra-high strength austenitic steel and INCOLOY020 alloy; Welding between nickel based alloys and stainless steel dissimilar materials. Welding of nickel chromium cobalt molybdenum welding wire ERNiCrCoMo anti creep joint; Used for 617 (N06617) nickel based bonding.

　　The casting alloy of Inconel alloy is CY240, and the rolling grade is Ineonel600. The rolling grade of Incoloy alloy is Incoloy800 alloy. Among the current corrosion-resistant nickel based alloys, their application in valve production is second only to Monel alloy. InconelX-750 is an aging strengthened nickel based high-temperature alloy that exhibits excellent corrosion resistance and creep fracture strength at high temperatures, as well as strong corrosion resistance and high strength at 980 ℃. It has good relaxation resistance at 540 ℃, as well as good formability and welding performance. Excellent mechanical properties in low-temperature environments. Commonly used for making springs that work at high temperatures, large pressure vessels, thrust chambers on rocket engines, and reverse thrust devices on aircraft. Incone1600 alloy is a nickel chromium iron base solution strengthening alloy, which has good high-temperature corrosion resistance and performance, and excellent cold and hot working and welding workers.

　　Longjin Special Steel has a large inventory of special alloy materials such as nickel and nickel alloys, high-temperature alloys, and corrosion-resistant alloys throughout the year.

　　The main varieties include

　　GH high-temperature alloy: GH131 (GH1131) GH132 (GH1132) GH136 (GH1136) GH30 (GH3030) Haynes 25, GH36 (GH3036) GH39 (GH3039) GH44 (GH3044) GH128 (GH3128) GH33 (GH4033), GH145 (GH4145) GH169 (GH4169) GH738 (GH4738) GH140 (GH1140) GH706 (GH2706), GH901 (GH2901) GH536 (GH3536) GH99 (GH4099) GH188, (GH5188) GH80A (GH4080A), GH922 (GH3922) GH141 (GH4141) GH625 (GH3625) GH751 (GH4751) GH230 GH26 (R26)

　　Inconel alloys: Inconel 230 (N06230), Inconel 600 (N06600), Inconel 601 (N06601), Haynes 25, Inconel 617 (N06617), Inconel 625 (N06625), Inconel 690 (N06690), Inconel 706 (N07706), Inconel 718 (N07718), Inconel X-750 (N07750), Inconel 751 (N07751)

　　Monel alloy: Monel 400, Monel R-405, Monel K-500, Haynes 25

　　NS corrosion-resistant alloys: NS111 (NS1101), NS112 (NS1102), NS142 (NS1402), NS143 (NS1403), NS144 (NS1404), NS312 (NS3102), NS315 (NS3105), NS321 (NS3201), NS322 (NS3202), NS323 (NS3203), NS333 (NS3303), NS334 (NS3304), NS336 (NS3306), NS338 (NS3308), Haynes 25

　　Incoloy alloys: Incoloy 800 (N08800), Incoloy 800H (N08810), Incoloy 800HT (N08811), Incoloy 825 (N08825), Incoloy 020 (N08020), Incoloy 028 (N08028), Incoloy 330 (N08330), Incoloy 25-6Mo, (N08926), Incoloy 901, (N09901), Incoloy 925 (N09925), (S66286), Haynes 25 (R30605) Haynes HR-120 (N08120), Haynes HR-160 (N12160), Haynes 188 (R30188), Haynes 214 (N07041), Haynes 230 (N06230)，Haynes 230-W (N06231)、Haynes 242 (N10242)，Haynes 556 (R30556)，Haynes 625 (N06625)、Haynes 718 (N07718)