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GH3044/GH44

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GH3044/GH44

Chinesegrade: GH3044/GH44 nickel-based superalloy

Similar grades: ЗИ686, ХН60ВТ, ВЖ98(Russia)

I. Overview of GH3044:

GH3044 is a solid solution-strengthenednickel-based anti-oxidation alloy. It can be used to manufacture aero-enginemain combustion chamber and afterburner components, as well as heat shields andguide blades, which work continuously below 900 ° C. We can supply in form of plate,strip, wire, rod and ring.

II. Chemicalcomposition: %                

C≤

Si≤

Mn≤

P≤

S≤

Cr≥

Ni≥

Mo≥

Cu≤

0.1

0.8

0.5

0.013

0.013

23.5-26.5

Balance

1.5


Other

N≤

Al≤

Ti≤

Fe≤

Co≤

V≤

W≤

Nb≤

-

1.5

0.30-0.70

4

-

-

13.0-16.0

-

Note: GJB2612-1996 require ω (Cu) ≤0.20%;GJB3317-1998 and GJB3318-1998 require ω (Cu) ≤0.07%.

III. Physical and chemical properties

1. Thermal performance:

(1) Melting temperature range: 1352 ~ 1375 [1].  

(2) Thermal conductivity:

θ/

100

200

300

400

500

600

700

800

900

950

λ/(W/(m · ))

11.7

13

14.2

15.9

17.2

18.4

19.7

21.8

24.7

25.1

(3) Specific heat capacity:   

θ/

100

200

300

400

500

600

700

800

900

1000

c/(J/(kg · ))

440

461

482

503

524

545

545

566

587

629

2. Density: ρ = 8.89g/cm 3 .

3. Magnetic properties: non-magnetic.   

4. Chemical properties: The oxidation rateafter 100h test in the air medium and the depth of oxidation along the crystalcan be seen in the table

θ/

900

1000

1100

1200

Oxidation rate/(g/m · h)

0.0971

0.205

0.432

0.788

Oxidation depth along crystal/mm

0.016

0.08

0.11

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