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EN 1.7390 Steel vs. EN 1.4869 Casting Alloy

EN 1.7390 steel belongs to the iron alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.7390 steel and the bottom bar is EN 1.4869 casting alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16
5.7
Fatigue Strength, MPa 310
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 710
540
Tensile Strength: Yield (Proof), MPa 480
310

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Maximum Temperature: Mechanical, °C 510
1200
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 40
10
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
70
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 1.7
7.7
Embodied Energy, MJ/kg 23
110
Embodied Water, L/kg 69
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
26
Resilience: Unit (Modulus of Resilience), kJ/m3 600
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 11
2.6
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.18
0.45 to 0.55
Chromium (Cr), % 4.0 to 6.0
24 to 26
Cobalt (Co), % 0
14 to 16
Iron (Fe), % 91.9 to 95.3
11.4 to 23.6
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
4.0 to 6.0