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EN 1.8879 Steel vs. S41425 Stainless Steel

Both EN 1.8879 steel and S41425 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.8879 steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
280
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
17
Fatigue Strength, MPa 460
450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 510
570
Tensile Strength: Ultimate (UTS), MPa 830
920
Tensile Strength: Yield (Proof), MPa 710
750

Thermal Properties

Latent Heat of Fusion, J/g 260
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 40
16
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
13
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
2.9
Embodied Energy, MJ/kg 26
40
Embodied Water, L/kg 54
120

Common Calculations

PREN (Pitting Resistance) 2.0
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1320
1420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
33
Strength to Weight: Bending, points 25
27
Thermal Diffusivity, mm2/s 11
4.4
Thermal Shock Resistance, points 24
33

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.2
0 to 0.050
Chromium (Cr), % 0 to 1.5
12 to 15
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 91.9 to 100
74 to 81.9
Manganese (Mn), % 0 to 1.7
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.7
1.5 to 2.0
Nickel (Ni), % 0 to 2.5
4.0 to 7.0
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.015
0.060 to 0.12
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0 to 0.15
0