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EN 1.4530 Stainless Steel vs. Nickel 725

EN 1.4530 stainless steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4530 stainless steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 1030 to 1370
860

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 790
980
Melting Completion (Liquidus), °C 1460
1340
Melting Onset (Solidus), °C 1410
1270
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 3.4
13
Embodied Energy, MJ/kg 46
190
Embodied Water, L/kg 130
270

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 36 to 48
28
Strength to Weight: Bending, points 29 to 35
24
Thermal Shock Resistance, points 35 to 47
23

Alloy Composition

Aluminum (Al), % 0.6 to 0.8
0 to 0.35
Carbon (C), % 0 to 0.015
0 to 0.030
Chromium (Cr), % 11.5 to 12.5
19 to 22.5
Iron (Fe), % 74.4 to 77.3
2.3 to 15.3
Manganese (Mn), % 0 to 0.1
0 to 0.35
Molybdenum (Mo), % 1.9 to 2.2
7.0 to 9.5
Nickel (Ni), % 8.5 to 9.5
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.015
Silicon (Si), % 0 to 0.1
0 to 0.2
Sulfur (S), % 0 to 0.0050
0 to 0.010
Titanium (Ti), % 0.28 to 0.37
1.0 to 1.7