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EN 1.8959 Steel vs. S41425 Stainless Steel

Both EN 1.8959 steel and S41425 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.8959 steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
280
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
17
Fatigue Strength, MPa 220
450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 350
570
Tensile Strength: Ultimate (UTS), MPa 570
920
Tensile Strength: Yield (Proof), MPa 340
750

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 420
810
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
16
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
13
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.9
Embodied Energy, MJ/kg 21
40
Embodied Water, L/kg 52
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
150
Resilience: Unit (Modulus of Resilience), kJ/m3 300
1420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 19
27
Thermal Diffusivity, mm2/s 10
4.4
Thermal Shock Resistance, points 17
33

Alloy Composition

Carbon (C), % 0 to 0.19
0 to 0.050
Chromium (Cr), % 0.35 to 0.85
12 to 15
Copper (Cu), % 0.2 to 0.6
0 to 0.3
Iron (Fe), % 94.9 to 99
74 to 81.9
Manganese (Mn), % 0.45 to 1.6
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.35
1.5 to 2.0
Nickel (Ni), % 0 to 0.7
4.0 to 7.0
Nitrogen (N), % 0 to 0.010
0.060 to 0.12
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.55
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.0050
Zirconium (Zr), % 0 to 0.17
0