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Inconel X-750

Inconel x-750 have good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, and good processability, good welding performance. It can be able to manufacture all kinds of complex shape parts.In the aerospace, nuclear power, oil industry, and in the extrusion die, in the above temperature range obtained the extremely widespread application.

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  • Inconel X-750
  • RONSCO
  • Alloy1996MR409

Inconel X-750


X750 is a Nickel-Chromium alloy made precipitation hardenable by additions of Al and Ti, having creep-rupture strength at high temperatures to about 700°C (1290°F). It is widely used for high temperature conditions but is not as strong as Nimonic 90.


Chemical Composition

Specifications

Designations

Key Features

Typical Applications

ElementMin %Max %C-0.08Mn-1.00Si-0.50S-0.01Cr14.0017.00Ni70.00-Nb/Cb0.701.20Ti2.252.75Al0.401.00Fe5.009.00Co-1.00Ta-0.05Cu-0.50

 

AMS 5667
AMS 5671
AMS 5698 (No 1 Spring Temper)
AMS 5699 (Spring Temper)
ASTM B637
BS HR 505
GE B14H41
ISO 15156-3 (NACE MR 0175)

W.NR 2.4669
UNS N07750
AWS 014

Good creep rupture strength at high temperatures
Not as strong as Nimonic 90
Very good at cryogenic temperatures
Age hardenable
High temperature dynamic applications

Nuclear reactors
Gas turbines
Rocket engines
Pressure vessels
Aircraft structures


Density

8.28g/cm³

0.299 lb/in³

Melting Point

1430°C

2600°F

Coefficient of Expansion

12.6 μm/m °C (20 - 100°C)

7.0 x 10-6 in/in °F (70 - 212°F)

Modulus of Rigidity

75.8 kN/mm²

10994 ksi

Modulus of Elasticity
(Spring Temper + Aged)
(Spring Temper + 3 Part Heat Treated)
(No.1 Spring Temper + Aged)

218.0 kN/mm²
212.4 kN/mm²
213.7 kN/mm²

31619 ksi
30806 ksi
30995 ksi

 

Heat Treatment of Finished Parts

Condition as supplied by Alloy Wire

Type

Temperature

Time (Hr)

Cooling

°C

°F

Spring Temper

Age Harden

650

1200

4

Air

Spring Temper (3 Part)

Anneal
Stabalize
Age Harden

1150
843
704

2100
1550
1300

2 †
24
20

Air
Air
Air

No. 1 Temper

Age Harden

730

1350

16

Air

 

Properties

Condition

Approx. tensile strength

Approx. operating temperature

N/mm²

ksi

°C

°F

Annealed

800 - 1000

116 - 145

 -

-

No 1 Temper

900 - 1150

130 - 167

 -

 -

Spring Temper

1100 - 1500

159 - 217

 -

 -

No 1 Temper + Aged

1300 - 1450

188 - 210

-200 to +550

-330 to +1020

Spring Temper + Aged

1350 - 1750

196 - 254

-200 to +370

-330 to +700

Spring Temper + 3 Part heat treated

1100 - 1250

159 - 181

-200 to +550

-330 to +1020

The above tensile strength ranges are typical. If you require different please ask.


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