GH4033

• 

• Material:	GH4033
  Other Brands:	GH4033, ЭЙ437Б, ХН77ТЮР
  Source Stock:	Customized
  Supplier:	Shanghai Hite Special Alloy Co., Ltd.
  Contacts:	Mr.KayDuan
  Email:	sales02@hitealloy.com

• GH4033 Details

  
  
  

  GH4033 is a high-temperature alloy formed by adding aluminum and titanium to a nickel chromium matrix γ’ Phase dispersion strengthened alloy has sufficient high-temperature strength at 700-750 ℃ and good oxidation resistance below 900 ℃. This alloy has good cold and hot processing performance, mainly supplying hot rolled bars and disc blanks, and is used for engine rotor parts.

  
  

  GH4033 Material Technical Standard：

  GH4033 Material Technical Standard GJB 1953-1994 "Specification for Hot Rolled High Temperature Alloy Bars for Aircraft Engine Rotating Parts".

  GJB 2611-1996 "Specification for Cold Drawn High Temperature Alloy Bars for Aerospace Applications".

  GJB 2612-1996 "Specification for Cold drawn High Temperature Alloy Wire Materials for Welding".

  GJB 3020-1997 "Specification for Aerospace High Temperature Alloy Ring Billets".

  GJB 3165-1998 "Specification for Hot Rolled and Forged High Temperature Alloy Bars and Bars for Aerospace Load Carrying Components".

  GJB 3782-1999 "Specification for Aerospace High Temperature Alloy Bars".

  HB 5198-1982 "Deformed high-temperature alloy bars for aircraft blades".

  
  

  GH4033 Chemical composition:

  Grade	chemical composition,%
  	Ni	Cr	C	Si	Mn	S	P
  GH4033	Remainder	19-22	0.03-0.08	≤0.65	≤0.4	≤0.007	≤0.015
  	Fe	Ti	Ce	Al	B	Bi	Ag
  	≤1.0	2.4-2.8	≤0.02	0.6-1.0	≤0.01	≤0.0001	≤0.0005

  
  

  GH4033 Heat Treatment System:

  The hot-rolled bars used for rotating parts are: 1080 ℃± 10 ℃, air-cooled+700 ℃± 10 ℃, 16h, air-cooled. Bars and cold drawn bars for ordinary load-bearing parts are air cooled at 1080 ℃ for 8 hours at+700 ℃ or 750 ℃ for 16 hours. The ring blank and forged round cake are cooled by air at 1080 ℃ for 8 hours and 750 ℃ for 16 hours.

  
  

  GH4033 (GH33) variety specifications and supply status:

  Supply hot-rolled round bars of d20~55mm. Cold drawn bars are available in the following varieties: round bars with a diameter of d8-45mm, square bars with a side length of d8-30mm, and hexagonal bars with an inner diameter of d8-36mm. We also supply forged round cakes with a diameter of no more than 600mm and a height of 60-150mm, ring billets with an outer diameter of 200-800mm and an inner diameter of 50-600mm and a height of 60-250mm, as well as hot-rolled and forged bars with a diameter of 20-300. Welding wire can be supplied with wire with a diameter of 0.2-10mm. The blades are supplied in a rolled state using bars, and their surfaces should be completely polished or turned smooth. Cold drawn rods are delivered in a solution treated, pickled, polished, or cold drawn state. The round cakes are supplied in a forged state with a polished surface. Welding wires are delivered in static, semi hard state, solution treated, pickled, and bright solution treated discs, or can be delivered straight.

  
  

  GH4033 Melting and Casting Process:

  Melting using electric arc furnace, electric arc furnace+electroslag or vacuum arc remelting, non vacuum induction furnace+electroslag or vacuum arc remelting, and vacuum induction furnace+electroslag or vacuum arc remelting processes.

  
  

  GH4033 (GH33) Other Overview and Special Requirements:

  This alloy is widely used in high-temperature components of turbine engines, mainly as turbine blades, turbine discs, and other high-temperature load-bearing components. It is one of the alloys with mature usage experience both domestically and internationally. During hot rolling and forging, attention should be paid to the recrystallization problem of this alloy. It has a tendency to form uneven and coarse grains, which can easily lead to coarse grain waste. In addition, the production process should be strictly controlled to avoid the phenomenon of a decrease in tensile plasticity at 700 ℃.

  process performance:

  1. The alloy has good hot working performance, with a forging heating temperature of 1140 ℃ and a final forging temperature of 950 ℃.

  
  

  2. The average grain size of this alloy is closely related to the degree of deformation of the forging and the final forging temperature.

  
  

  3. The alloy can be subjected to argon arc welding in a solid solution state, and timely treatment should be carried out after welding to eliminate welding stress.

  
  

  4. Surface treatment process: The machined parts need to undergo electrolytic polishing. If mechanical polishing is used, the final polishing marks should be consistent with the length direction of the blade.

  
  

  5. The heating rate of solid solution treatment for parts should not be too fast, and a stepped heating curve can be used.