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S44800 Stainless Steel vs. EN 1.4931 Steel

Both S44800 stainless steel and EN 1.4931 steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S44800 stainless steel and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
17
Fatigue Strength, MPa 300
410
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
76
Tensile Strength: Ultimate (UTS), MPa 590
810
Tensile Strength: Yield (Proof), MPa 450
620

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1100
600
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
24
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
11

Otherwise Unclassified Properties

Base Metal Price, % relative 19
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.9
Embodied Energy, MJ/kg 52
42
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 42
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 480
970
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.6
6.5
Thermal Shock Resistance, points 19
22

Alloy Composition

Carbon (C), % 0 to 0.010
0.2 to 0.26
Chromium (Cr), % 28 to 30
11.3 to 12.2
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 62.6 to 66.5
83.2 to 86.8
Manganese (Mn), % 0 to 0.3
0.5 to 0.8
Molybdenum (Mo), % 3.5 to 4.2
1.0 to 1.2
Nickel (Ni), % 2.0 to 2.5
0 to 1.0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35