What is GH214, what is GH1131 material and chemical composition

The use temperature of ultra-high temperature alloy materials is as high as 1300 °C. Among them, GH4214 product is the best high-temperature oxidation resistant alloy in China, which is suitable for use in the special environment of harsh high-temperature oxidation and corrosion.

GH4214 products are used in 1300 temperature measurement thermocouple sheaths, and the service life is much higher than GH30, GH39 and other alloy or ceramic sheaths.

gh4214

1200 is best used under antioxidant conditions.

gh2747

The service temperature can reach up to 1350 °C

gh2455

The operating temperature can reach up to 1330°C

GH2747 corresponds to grades:

GH747, Haynes747 (US), 747 (Russian).

GH2747 Material Technical Standard:

GB T14992 Classification and grade of high-temperature materials for superalloys and intermetallic compounds.

Q GYb 511 GH2747 alloy hot-rolled and forged bars.

Q GYB 512 GH2747 alloy cold drawn (rolled) seamless pipe.

GH2747 is a Fe-Ni-Cr-based precipitation hardening deformed superalloy, which is used in a solid solution state with a long-term working temperature of 1100-1250 and a short-term working temperature of 1300. The high-temperature heat-resistant oxidation resistant alloy GH2747 has high strength, good microstructure stability and excellent oxidation and corrosion resistance.

GH2747 Chemical Composition:

GH2747 (GH747) chemical composition.

c：≤cr：15～17

ni：44～46

al: fe: margin.

si：≤1mn：≤1

p：≤s：≤

CE: GH2747 Density:

GH2747 Heat Treatment System:

Hot rolled bars, forged bars, forgings: 1000-1200, water cooling, holding time according to the thickness of the material.

GH2747 Features and Performance;

Oxidation resistance of GH2747: The material cost of GH2747 is lower than that of the same type of superalloy. On the basis of increasing the chromium content, the oxidation resistance of the alloy at 1000 -1300 is greatly improved by increasing the content of aluminum and adding trace rare earth elements.

Performance characteristics: GH2747 has good high temperature strength and corrosion resistance, creep resistance and fatigue resistance are better than Inconel 718 alloy. In addition, GH2747 has good machinability and weldability, and can be manufactured by various processing methods.

Mechanical properties: GH2747 tensile strength 1340MPa, yield strength 1160MPa, elongation 16%, hardness HRC 40-45.

Mechanical properties: GH2747 has good high temperature strength and creep resistance, and can maintain good mechanical properties at high temperatures. At 700°C, the tensile strength and yield strength of GH2747 can still reach about 900MPa and 700MPa, showing excellent high-temperature stability.

GH2747 Welding Performance:

The alloy can be welded well by all welding methods. Argon arc welding, spot welding, rolling welding, and electron beam welding have excellent welding results. When welding dissimilar materials, the base wire can be used as the filler, or the same type of alloy can be used as the filler.

It is an alloy steel that is very wear-resistant and high-temperature resistant.

The main characteristics of GH1131 (GH131) solution-strengthened iron-based alloy: this type of alloy contains relatively high chromium and nickel, and contains relatively small amounts of dispersion-strengthened phase forming elements (V, AL, TI). Its main form of heat treatment is "solution treatment", and the purpose of strengthening can be achieved through solution treatment.

When parts need to be cold-pressed multiple times, solution treatment is also carried out to eliminate work hardening and restore plasticity. Parts are usually annealed after welding to relieve internal stresses. Due to the high content of chromium and nickel, the oxidation temperature of this type of alloy is high, generally up to more than 900; However, due to the small number of elements formed by the dispersion strengthening phase and the small number of compounds in the alloy, the strength at room temperature and high temperature are low.

The structure of this type of alloy after solution treatment is austenite, so it has good plasticity and can be cold-pressed forming; Due to the low carbon content, the weldability is also good, this kind of alloy is mainly used to make high-temperature parts with complex shapes, cold press forming, little force, but high oxidation resistance, the most typical part is the combustion chamber of a turbine engine.

Examples: Combustion chambers, afterburners and other high-temperature components of turbine engines up to 900.

GH1131 (GH131) is a solution-strengthened iron-based alloy.

It is a high-performance iron-based superalloy strengthened by tungsten, molybdenum, niobium, nitrogen and other elements, with a nickel content of about 28%, but its thermal strength level is the same as that of GH3044 alloy.

GH1131 (GH131) Overview:

GH1131 is a high-performance iron-based superalloy reinforced with tungsten, molybdenum, niobium, nitrogen and other elements, with a nickel content of about 28%, but its thermal strength level is the same as that of GH3044 alloy. The alloy has good hot-working plasticity and welding, cold forming process properties. The main varieties and main products are cold-rolled sheets, hot-rolled plates, bars, flat bars and wires.

It can be used to make high-temperature parts for rocket engines that work for a short time in 700 1000 and aero engines that work for a long time in 700 pathology and 750.

GH1131 (GH131) heat treatment system.

Hot-rolled plate and cold-rolled sheet are: 1130 1170, air-cooled; Bar is: 1160 10, air-cooled.

GH1131(GH131) Variety, specification and status.

Cold-rolled sheets, hot-rolled sheets, bars, welding wires, etc. Hot-rolled plate and cold-rolled sheet after solution treatment, pickling, correction and trimming**; Bars are not heat-treated**; Wire in cold-drawn, heat-treated, pickled or semi-hard**.

GH1131 (GH131) Melting and casting process.

The alloy is produced by non-vacuum induction furnace plus electroslag remelting or arc smelting plus electroslag remelting.

GH1131(GH131) Application Overview and Special Requirements.

The alloy is mainly used as a high-temperature component for rocket engines. For aero engines, afterburner adjustable nozzle housings and adjusting discs have been made and put into production. Compared with nickel-based alloys for similar purposes, the microstructure stability of the alloy is poor in high temperature oxidation resistance, and the plasticity decreases at room temperature and the forming performance deteriorates after long-term use at 700 900.

Material grade GH1131 (GH131).

Similar grades. 21 28 5 3 126, 100 (Russia).

Technical standards for materials.

GB T14992-1994 "High Temperature Alloy Grade" [obsolete].

GB T14992-2005 "Classification and grade of high-temperature materials for superalloys and intermetallic compounds" [current].

GB T14995-1994 "Superalloy Hot Rolled Steel Plate" [obsolete].

GJB 1952-1994 "Specification for Cold-rolled Sheet of Superalloy for Aviation".

GJB 2612-1996 "Specification for Cold Drawn Wire of Superalloy for Welding".

YB T5245-1993 "Hot Rolled and Forged Bars of Superalloy for Ordinary Load-bearing Parts".

Material grade GH2132 (GH132).

Similar grades: A286, UNSS66286, ZBNCT25 (France, USA).

What specifications of age-hardening iron-based alloy GH2132:

Coils, forgings, plates, rods, wires and rings, etc.

GH2132 Overview:

GH2132 is a Fe-25Ni-15Cr-based superalloy, which is comprehensively strengthened with molybdenum, titanium, aluminum, vanadium and trace boron. It has high yield strength and durable, creep strength below 650, and has good processing plasticity and satisfactory welding performance. It is suitable for the manufacture of high-temperature load-bearing parts of aero engines with long-term operation below 650, such as vortex pans, press discs, rotor blades and fasteners.

What are the features of GH2132?

1. Good high and low temperature strength;

2. Long-term stability;

3. Good corrosion resistance;

4. Thermal deformation performance.

5. Good processing plasticity;

6. Satisfactory welding performance;

GH2132 Chemical Composition,

c：≤cr：

ni：mo：

ti:fe: margin.

v：b：mn：al：≤

si：≤p：≤s：≤

In which applications is GH2132 used?

1. Engine compressor plate.

2. Vortex pan plate

3. Load-bearing ring

4. Receiver, 5. Shaft

6. Fasteners.

7. Plate welding load-bearing parts.

What is the density of GH2132 material?

GH2132 Density :

How to control the processing temperature of GH2132?

GH2132 forging billet heating temperature 1080 1140, final forging temperature higher than 900; The heating temperature of the hydraulic press is 1110, and the stop temperature is higher than 950; The opening pressure temperature of die forging is 1100, and the stop pressure temperature is higher than 930. The heating temperature of ring rolling is 1130 1150, and the final rolling temperature is higher than 900. The rolling temperature of bars and profiles is 1080 1140, and the final rolling temperature is higher than 900.

GH2132 is a precipitation hardening deformed superalloy material in China.

GH2132 (GH132) precipitation hardening deformed superalloy.

Overview of GH2132 characteristics and application fields:

The alloy is a fe-25Ni-15Cr-based precipitation-hardening deformed superalloy with a service temperature of -253 to 650. In order to improve the strength, the purity of the high-quality GH2132 alloy has been further improved, the content of sulfur and gas has been reduced, and the heat treatment system has been adjusted. Both alloys have good high and low temperature strength and long-term stability, good corrosion resistance and heat deformation properties, and have good processing plasticity and satisfactory welding performance.

It is suitable for manufacturing high-temperature load-bearing parts such as turbine discs, compressor discs, fasteners and other high-temperature load-bearing parts of aeronautical, aerospace, and ground gas turbine and flue gas turbine engines.

GH2132 is a similar grade:

A-286 UNS S66286 (USA), ZBNCT25 (France), X5NICRTI26-15, German CR15Ni25Ti2MoALVB

GH2132 Chemical Composition,

c：≤cr：

ni：mo：

ti:fe: margin.

v：b：mn：al：≤

si：≤p：≤s：≤

"GH" ("G" and "H" are the first letters of "Gao" and "He" in Chinese Pinyin, respectively), is the brand of China's superalloy.

For details, see GB14992-2005

GH113 is an old grade and is now GH1131.

GH4169 is a precipitation strengthened nickel-based superalloy material grade. It has good comprehensive properties in the temperature range of -253 650, 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 performance and good welding performance. 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 material characteristics:GH4169 material is characterized by the fact that the alloy structure is particularly sensitive to the hot working process, and the relationship between phase precipitation and dissolution in the alloy and the relationship between the structure and the process and performance can be formulated according to different use requirements, and various parts that can meet different strength levels and use requirements can be obtained. **The varieties are forgings, forging rods, rolling rods, cold-rolled rods, round cakes, rings, plates, belts, wires, tubes, etc.

1. GH4169 Introduction:

GH4169 is a Fe-Ni-Cr based precipitation hardening deformed superalloy, with a long-term service temperature range of -253 650, a short-term service temperature of 800, and high strength, good toughness and oxidation and corrosion resistance in high and low temperature environments. As well as good processability and welding performance and long-term structural stability.

GH4169 alloy has been used in the production of rings, blades, fasteners and structural parts in aviation, aerospace and petrochemical industries, and a variety of parts used in petrochemical applications, which can be mass-produced and have good usability. The alloy can be cooled by helium cooling process when vacuum self-consumption remelting, which can effectively reduce niobium segregation, and the injection molding process can be used to produce rings, which can reduce costs and cycles, and superplastic molding can expand the production range. It is suitable for the production of rings, blades, fasteners and structural parts in aviation, aerospace and petrochemical industry, mainly rods, plates, tubes, belts, wires, etc.

3. GH4169 similar grades:

High temperature new name, high temperature old name, corrosion resistance, new name, corrosion resistance, old name, national standard GH4169GH169, Japan JIS, American standard, ASTM, American standard, UNS, SAE, German standard, DIN Europe, Eninconel

4. GH4169 chemical composition:

Carbon, C, Chromium, Cr, Ni, Nickel, Mg, Molybdenum, Mo, Fe, Fe, Margin, Niobium, NB, Boron, Sulfur, Manganese, Mn, Silicon, Si, Phosphor Copper, Cu, Ti, Ti: Aluminum, Al, Vanadium, V, Tungsten, W, Cobalt, Co

5. GH4169 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.

6. GH4169 physical properties:

Density g cm 0 6 magnetic thermal conductivity w (resistivity ) mm2 m) 100-800 specific heat capacity ) kg (linear expansion coefficient (10-6 k) 20 800 no temperature 0 hardness HBS450 346

7. Mechanical properties of GH4169:

8. GH4169 processing and welding performance:

The alloy has satisfactory welding performance, and can be welded by argon arc welding, electron beam welding, seam welding, spot welding, etc. For parts that are directly aged, friction welding can be performed in the forging state, and direct aging treatment can be carried out after welding, and joints with high durability and high durability can be obtained. Author:

Shanghai Gangze Alloy Group Source: bilibili