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K418 K18 518 equiaxed crystal casting superalloy.
Overview: K418 is a nickel-based precipitation hardening equiaxed crystalline casting superalloy (equivalent to the United States Inconel 713C), with the phase as the precipitation strengthening phase, and the service temperature is below 900. The alloy has high creep strength, cold and heat fatigue resistance and oxidation resistance.
The alloy composition is simple, does not contain cobalt, has a low density, and is usually used in the as-cast state.
Similar grades: Inconel 713C or 713C
Shanghai Boseman.
K418 Physical Properties:
Melting Point: 1295 1345 ;
Density: =;
Coefficient of expansion: 20 800 :;
Room temperature hardness (as-cast): HRC33 37
K418 mechanical properties:
20: yield strength 760MPa, elongation;
800: Yield strength 745MPa, elongation.
High temperature lasting: 800, 255MPa is greater than 8000h, 490MPa is greater than 80h.
K418 main applications and characteristics:
The alloy is suitable for making hot-end rotating and stationary precision castings operating below 900, such as turbine working blades, guide vanes, guides and cast turbines. It has been widely used in the manufacture of turbine working blades, guide vanes and cast turbines for aviation, ground and offshore gas turbines, cast turbine rotors and guides for aerospace bomb engines, as well as supercharged turbines and hot extrusion dies for diesel and gasoline engines.
The alloy adopts hot isostatic pressing (HIP) treatment and subsequent heat treatment, which can improve the plasticity and fatigue resistance of the alloy, and can also restore the structure and service performance of parts with degraded structure and reduced performance after long-term use. When the alloy is used for a long time under hot corrosive conditions, it must have a protective coating. After 800 years of aging, the alloy will precipitate a small number of phases, but there is no obvious effect on the performance.
K418 Main Specifications:
K418 round bar.
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GH4080A Introduction:
GH4080A is a Ni-Cr-based precipitation-hardening deformed superalloy used below 800 degrees Celsius. Aluminum and titanium elements are added to the alloy to form a precipitation-strengthening phase. The alloy has good creep resistance and oxidation resistance in the range of 650-850 degrees Celsius.
The alloy has good hot and cold processing properties.
Chemical Composition: Carbon-silicon Si
Manganese, Mn, Phospho, Sulfur
Chromium CR18-21
Nickel Ni margin.
Cobalt Co Copper Cu
Iron FE GH4080A Material Specifications:
Hot Rolling Bar 10 100mm, Forging Rod: 100mm 350mm, Cold Rolling Sheet, Hot Rolling Plate: 4mm 14mm, with 2mm-10mm, Forging Rings of Various Sizes and Specifications, Inventory Individual Grades Variable Length.
GH4080A Applications & Features:
GH4080A is suitable for rotor blades, guide vane bearings, fan mounting rings, bolts, blade locks and other parts of the engine.
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GH4080A, Nimonic 80A, NICR20TIAL ( Nickel-based superalloy.
Shanghai Bingzheng Industrial GH4080A (formerly GH80A) is a nickel-chromium matrix, adding aluminum, titanium to form a phase diffusion strengthened superalloy, except for the aluminum content is slightly higher, the other is similar to GH4033, the use temperature is 700 800, between 650 850 has good creep resistance and oxidation resistance.
GH4080A alloy has good cold and hot working performance, and the product form is bar, plate, strip and ring parts, etc., which is used to manufacture engine rotor blades, guide vane bearings, bolts, blade lock plates and other parts.
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GH bar 0a is a nickel-chromium matrix, adding aluminum, titanium to form R phase diffusion strengthened superalloy, except for the aluminum content is slightly higher, the other is similar to GH4033, the use of temperature paint 00 bar 00, in land 50 bar 50 has good creep performance and oxidation resistance. The alloy has good cold and hot working performance, mainly hot-rolled bars, cold-drawn bars, hot-rolled plates, cold-rolled plates, strips and ring parts, etc., which are used to manufacture engine rotor blades, guide vane bearings, bolts, blade lock plates and other parts. GH0A superalloy refers to a class of metal materials based on iron, nickel and cobalt, which can work for a long time under high temperature and certain stress above Lu 00; And it has high high temperature strength, good oxidation and corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties.
Based on the above performance characteristics, and the alloying degree of GH0A superalloy is high, also known as "super alloy", which is widely used in aviation, aerospace, petroleum, chemical industry and ships. According to the matrix elements, superalloys are divided into iron-based, nickel-based, cobalt-based and other superalloys. The use temperature of iron-based superalloys can only reach 50 paint bars, and for heat-resistant parts used at higher temperatures, nickel-based and refractory metal-based alloys are used.
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GH4169 precipitation-hardening superalloy.
GH4169 Features and Application Fields Overview:
The alloy has good comprehensive properties in the temperature range of -253 700, and the yield strength below 650 ranks first among deformed superalloys, and has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, as well as good processing properties and good welding properties. It is capable of manufacturing a wide range of parts with complex shapes, and has been used in a wide range of temperatures in aerospace, nuclear, petroleum and extrusion dies.
GH4169 is a similar grade:
Inconel 718, UNS NO7718 (USA), NC19FEN (France), Germany).
GH4169 Metallographic Structure:
The structure of the alloy in its standard heat-treated state consists of a matrix'、γ', δ, and NBC phases.
GH4169 process performance and requirements:
1. Due to the high niobium content in GH4169 alloy, the degree of niobium segregation in the alloy is directly related to the metallurgical process.
2. In order to avoid excessive segregation of elements in the ingot, the diameter of the steel ingot used is not more than 508mm.
3. The homogenized alloy has good hot working properties, and the heating temperature of the ingot shall not exceed 1120.
4. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging.
5. The alloy has satisfactory welding performance, and can be welded by argon arc welding, electron beam welding, seam welding, spot welding and other methods.
GH4169 Main Specifications:
GH4169 steel plate, GH4169 steel strip, GH4169 round bar, GH4169 seamless pipe, GH4169 welded pipe, GH4169 forging, GH4169 flange, GH4169 ring, GH4169 forging ring, GH4169 straight bar, GH4169 wire and supporting welding consumables, GH4169 round cake, GH4169 flat bar, GH4169 hexagonal bar, GH4169 reducer, GH4169 elbow, GH4169 tee, GH4169 machining parts, GH4169 bolts and nuts, GH4169 fasteners.
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GH4169 GH169 is a high-hardness, high-wear-resistant, high-temperature and high-temperature alloy.
Alloy overview: It is an austenitic structure, and the baiy" phase generated after precipitation hardening has relatively satisfactory mechanical properties. The δ phase formed at the grain boundary during the heat treatment process makes it have good plasticity, good strength, high temperature up to 1400°F, oxidation resistance up to 1800°F. The high tensile strength and impact strength of this nickel alloy does not decrease at low temperatures, and it can also be welded well.
Similar grades: GH169 (China).
NC19fenb (France).
NICR19FE19NB5, MO3 (Germany),
NA 51 (UK).
UNS NO7718 (USA).
nicr19nb5mo3(iso)
Physical properties: density g cm3
Melting point 1260-1340
Chemical Composition: C Mn Si P S Cr17 21
ni50~55
Cu Fe Margin.
b Minimum value of mechanical properties of the alloy at room temperature:
Alloy solution treatment tensile strength: 965rm n mm2 yield strength.
Elongation 30 A5 % Brinell hardness 363HB
Metallographic structure: The alloy has an austenite structure, and the Y" phase generated after precipitation hardening has good mechanical properties. The δ phase formed at the grain boundary during the heat treatment process gives it better plasticity.
Corrosion resistance: Alloys have excellent resistance to stress corrosion cracking and pitting in both high and low temperature environments. The alloy is particularly resistant to sunning at high temperatures.
Features:1Ease of processing.
2.It has high tensile strength, pi labor strength, creep strength and breaking strength at 700.
3.It has high resistance to yangization at 1000.
4.It has stable chemical properties at low temperatures.
5.Good welding performance.
Application: Due to its high temperature strength, good corrosion resistance and easy processing at 700, it can be widely used in various high-demand occasions. 1.Steam Turbine 2Liquid fuels 3Cryogenic Engineering 4Acidic environment 5Nuclear engineering.
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GH4169 standard heat treatment system: 950-980 10, 1h, oil-cooled, air-cooled or water-cooled +720 5, 8h, 50 h furnace cooling to 620 5, 8h, air-cooled.
The standard heat treatment at room temperature hardness is: HBS 346-450 The thickness and hardness of different plates are also different: thickness, annealed HRB 94, solution treatment HRB 102, solution treatment + aging HRC 36
The thickness is HRB 102 and the thickness is HRC 25
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GH4169 heat treatment process.
GH4169 Solution Mechanical Properties:
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GH4169 superalloy standard heat treatment.
GH4169 hardness after solution treatment
GH4169 hardness after solution treatment
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GH4169 superalloy ISGH41690
Chemical Composition: C: Cr:
mo:al:
ti:fe: margin.
si:p≤s:≤.015
co:≤mg≤b:≤cu:
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InconelX-750 (UNS NO7750) nickel-based superalloy.
InconelX-750 Features and Application Overview:
The alloy is mainly based on:'[Ni3(Al, Ti, Nb)] phase aging strengthened nickel-based superalloy, below 980 has good corrosion resistance and oxidation performance, below 800 has high strength, below 540 has good relaxation resistance, but also has good forming properties and welding properties, the alloy is mainly used in the manufacture of aero engines working below 800 and requires high strength corrosion-resistant ring parts, structural parts and bolts and other parts, in 540 The following jobs have medium or low stresses and require plane springs and coil springs that are resistant to relaxation. It can also be used to make parts such as gas turbine turbine blades.
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Compared to cobalt alloys and high-nickel materials, S21800 is a low-cost material that resists abrasion and abrasion. Its corrosion resistance is better than that of 304 stainless steel, its resistance to chloride pitting is better than that of 316 stainless steel, and its yield strength at room temperature is twice that of 304 and 316. At the same time, S21800 has good high temperature oxidation resistance and low temperature impact resistance.
ApplicationsDue to the excellent wear and scratch resistance of S21800 in room temperature and elevated environment, it is widely used in valve stems, seats, spools, nuts, bolts, screens, chain drives, latches, gaskets, rolling bearings, pump parts, including wear rings and rotors.
Chemical composition carbon-manganese.
Phosphorus below. Sulfur below silicon-chromium.
Nickel-molybdenum below.
Copper below. Hydrogen titanium below.
Aluminum below. Boron below.
Tin below. Vanadium below.
Tungsten below. Heat treatment S21800 cannot be hardened by heat treatment. The annealing temperature of S21800 is 1066°C and then water quenching.
Mechanical properties. Tensile properties at room temperature.
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4. S21800 corresponding grades: national standard: 0cr17ni9mn8si4n, American standard: nitronic60, alloy218, S21800.
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S21800 is a high wear-resistant austenitic stainless steel, S21800 corresponds to the grade: nitronic60 alloy218, national standard: 0cr17ni9mn8si4n
Chemical composition of nitronic 60:
Alloy % Nickel Chromium Iron Carbon Manganese Silicon Nitrogen Phosphorus Sulfur Nitronic 60 Min 8 16 59 7 Max 9 18 66 9
Physical properties of Nitronic 60:
Density melting point 1375
Minimum mechanical properties of Nitronic 60 alloy at room temperature:
Status: Tensile strength, rm n mm2, yield strength n mm2, elongation, a5 %, Brinell hardness, hb
Solid-melt 690 380 35 241
Nitronic 60 Features:
Compared to cobalt-containing and high-nickel alloys, nitronic 60 stainless steel is resistant to corrosion and wear at a fraction of the cost. Its overall corrosion resistance is better than that of Type 304 in most media. In Nitronic 60, the resistance to chloride pitting is better than that of Type 316.
The yield strength at room temperature is almost twice that of 304 and 316.
Nitronic 60 has excellent resistance to oxidation at high temperatures and impact at low temperatures.
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