Inconel X-750

• Material: Ni Cr
• Condition: Bright, Annealed
• Transport Package: in Spool, Carton, Wooden Case
• Trademark: Ualloy
• Origin: China
• Model NO.: Inconel X-750
• HS Code: 750522000
• Production Capacity: 500 Tons/Year

Product Description

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

Chemical Composition

Specifications

Designations

Key Features

Typical Applications

Element	Min %	Max %
C	-	0.08
Mn	-	1.00
Si	-	0.50
S	-	0.01
Cr	14.00	17.00
Ni	70.00	-
Nb/Cb	0.70	1.20
Ti	2.25	2.75
Al	0.40	1.00
Fe	5.00	9.00
Co	-	1.00
Ta	-	0.05
Cu	-	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.