Datasheet updated

2023-11-09 14:39
(supersedes all previous editions)

Sanicro® 75X is a precipitation hardening nickel alloy with good spring properties and good resistance to gas corrosion at high temperatures. Due to the grade's low cobalt content, Sanicro® 75X is particularly suitable for nuclear power applications.

Standards

  • UNS: N07750

Chemical composition (nominal)

Chemical composition (nominal) %
C Si Mn P S Cr Ni
≤0.030 0.3 0.6 ≤0.015 ≤0.010 16 72

Others: Fe=7.0 Al=0.7 Ti=2.5 Nb=0.8

Mechanical properties

Static strength

Nominal values at 20°C (68°F)
Condition1)
Tensile strength, Rm
Proof strength, Rp0,2a)
Elongation, A11,3
MPa
ksi
MPa
ksi
%
A
800
116
340
49
52
AT
1210
176
810
118
27

1) A = Annealed, AT = Annealed and tempered, 705°C (1300°F)/20 h

a) Rp0.2 corresponds to 0.2% offset yield strength.

1 MPa = 1 N/mm2

Physical properties

Density: 8.3 g/cm3, 0.30 lb/in3

Specific heat capacity
420 - 460 J/kg °C in the temperature range 20 - 100°C
540 J/kg °C in the temperature range 50 - 900°C
Temperature, °CW/m °CTemperature, °FBtu/ft h °F
100 16.3 210
300 19.8 570
500 25.6 930
700 30.2 1 290
900
37.2
1 650
Resistivity
Temperature, °CμΩmTemperature, °FμΩin.
20 1.20 70
100 1.25 210
200 1.25 390
300 1.25 570
500 1.30 930
700
1.30
1 290
Thermal expansion, mean values in temperatur ranges ( x10-6)
Temperature, °Cper °CTemperature, °Fper °F
30 - 100
12.2
85 - 210
30 - 300
13.4
85 - 570
30 - 500 13.8 85 - 930
30 - 700 14.9 85 - 1 290 
30 - 900
16.5
85 - 1 650

Permeability, mmax: 1.004

Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Alleima materials.