Supply UNS N07750, W.Nr.2.4669, alloyX-750, NiCr15Fe7Ti2Al iron-nickel based superalloy

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Origin:

China

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Telegraphic Transfer (T/T)

Quantity:

50000

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Inconel X-750

UNS N07750, W.Nr.2.4669, alloyX-750, NiCr15Fe7Ti2Al

At 980 ¡æ the following have good corrosion resistance and oxidation resistance, 800 ¡æ the following high intensity, 540 ¡æ has good resistance to the following relaxation of performance, but also has good formability and weldability, low temperature environment in excellent mechanical properties.

Applications " aviation engine rings, bolts and other structural parts and

" nuclear reactor

" gas turbine blade, grinding wheel

" relaxation of the surface resistance required springs and coil spring

" Sensors

" hot air pipe system

" Pressure Vessels

" Aircraft Structure

Supply Specifications

Sheet, strip, bars, forgings, rings, wire, springs and bolts consultations supply

Implementation of standards
Wire AMS5698 AMS5699

Forgings ASTM B637 AMS5667-5671 AMS5747

Bar ASTM B637 AMS5667-5671 AMS5747

With / board AMS5542 AMS5598

Physical data

Temperature

¡æ
Thermal Conductivity W / mk
Linear expansion coefficient 10-6 / K

50
14.7

100
15.9

200

13.1

300
20.1
13.5

400
23.4
14.1

500
25.1
14.4

600

15.0

700
31.5
15.6

800

16.2

900
37.3

Chemical composition Typical values (Weight%)

Cr
Ni + Co
Al
Ti
C
Mn
P
S
Fe

¡Ü

14.0-

17.0
¡� 70.0
0.40-1.00
2.25-2.75
0.08
1.00
0.015
0.01
5.0-

9.0

Mechanical properties (room temperature)

Variety
¦Ò§¾ / MPa
¦Ò0 .. 2 / MPa
¦Ä5 /%

Strip
¡Ü 930
-
¡� 18

Plate
¡Ü 930
¡Ü 515
¡� 30

Pipe
¡Ü 965
¡Ü 550
¡� 35

Physical properties

Density: 8.3 g/cm3

Melting Point :1395-1425 ¡æ

Resistivity ¦Ñ = 1.22 ¡� 10-6¦¸ ¡¤ m

Formability

1. Hot working temperature range of 980-1200 ¡æ, cooling can be water quenched or rapidly cooled;

2. Forging of ingots, the heating temperature can be 1200 ¡æ, in order to make the final forging or bar access to good organization and performance, followed by forging heating temperature should be lower in the corresponding temperature. Final forging temperature should be not less than 950 ¡æ. The alloy after severe forming process should be solution heat treatment.

Welding Technology

1. Alloy has good weldability, can be all kinds of welding. But for large sections of the parts is more difficult for welding, while the small section of sheet metal parts and good welding performance.

2. Welding must be carried out after annealing or solution heat treatment after welding should be carried out to eliminate the stress treatment, and 980 ¡æ, 900 ¡æ thermal insulation 0.5h or 2h. Welding assembly subsequent aging treatment, heat treatment available to approximate full strength.

Part Heat Treatment

1. Part of the treatment should be no sulfur in the neutral or reducing atmosphere to avoid sulfide.

2. Parts should be avoided in the 870 ~ 650 ¡æ between the "hot - cold" treatment, for large sections of the parts, in order to prevent cracks, solid solution should be in the air after cooling.

Cutting and grinding performance

Alloy can be in various states of mechanical processing, annealing, or solution process in good mechanical condition.

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