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EN 1.3956 Stainless Steel vs. Nickel 725

EN 1.3956 stainless steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have 45% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.3956 stainless steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 27
34
Fatigue Strength, MPa 240
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 650
860
Tensile Strength: Yield (Proof), MPa 330
350

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1080
980
Melting Completion (Liquidus), °C 1420
1340
Melting Onset (Solidus), °C 1380
1270
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.8
13
Embodied Energy, MJ/kg 68
190
Embodied Water, L/kg 180
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
240
Resilience: Unit (Modulus of Resilience), kJ/m3 270
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 23
28
Strength to Weight: Bending, points 21
24
Thermal Shock Resistance, points 18
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 20.5 to 23.5
19 to 22.5
Iron (Fe), % 51.9 to 62.1
2.3 to 15.3
Manganese (Mn), % 4.0 to 6.0
0 to 0.35
Molybdenum (Mo), % 1.5 to 3.0
7.0 to 9.5
Nickel (Ni), % 11.5 to 13.5
55 to 59
Niobium (Nb), % 0.1 to 0.3
2.8 to 4.0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7
Vanadium (V), % 0.1 to 0.3
0