2.4694 Nickel Alloy Technical Specifications

Name: 2.4694 Nickel Alloy Technical Specifications
Brand: Hiperoy

Standards

Mat. No. 2.4694

EU NiCr16Fe7TiAl

AISI/ASTM -

UNS N07751

Other Inconel Alloy 751
Alloy 751
Nicrofer 7016 TiAl

The 2.4694 / Alloy 751 alloy is similar to the Alloy X-750 alloy. Only the aluminum content has been increased for better precipitation hardening.
600 °It maintains high tensile strength up to C temperature. °It exhibits high creep and fatigue resistance up to 820C temperature. °It has high oxidation resistance up to 980C temperature. It has high resistance to stress corrosion at low and high temperatures. It has good weldability.

Chemical Composition & Mechanical and Physical Properties

C% 0.10 max

Mn% 1.00 max

Ti% 2.00-2.60

S% 0.010 max

Si% 0.50 max

Cr% 14.00-17.00

Ni% 70.00 min

Nb% 0.70-1.20

Cu% 0.50 max

AI% 0.90-1.50

Fe% 5.00-9.00

0.2% Yield Strength Rp N/mm2 716 min

Tensile Strength Rm N/mm2 1172 min 1080 min

Elongation A5 % 24 min

Tensile Strength (1000 hours)

650 °C 280 MPa

730 °C 240 MPa

815 °C 97 MPa

Solution Annealed ve precipitation hardened.

Application areas

In combustion chambers and exhaust valves.