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EN 1.4125 Stainless Steel vs. EN 1.4869 Casting Alloy

EN 1.4125 stainless steel belongs to the iron alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. They have a modest 36% 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4125 stainless steel and the bottom bar is EN 1.4869 casting alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 19
5.7
Fatigue Strength, MPa 300
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 800
540
Tensile Strength: Yield (Proof), MPa 470
310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 870
1200
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
10
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
70
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 2.3
7.7
Embodied Energy, MJ/kg 32
110
Embodied Water, L/kg 120
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
26
Resilience: Unit (Modulus of Resilience), kJ/m3 570
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 25
17
Thermal Diffusivity, mm2/s 4.1
2.6
Thermal Shock Resistance, points 29
14

Alloy Composition

Carbon (C), % 1.0 to 1.2
0.45 to 0.55
Chromium (Cr), % 16 to 18
24 to 26
Cobalt (Co), % 0
14 to 16
Iron (Fe), % 78 to 82.7
11.4 to 23.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0
4.0 to 6.0