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EN 1.4806 Stainless Steel vs. EN 1.4931 Steel

Both EN 1.4806 stainless steel and EN 1.4931 steel are iron alloys. They have 58% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4806 stainless steel and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
240
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.8
17
Fatigue Strength, MPa 120
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 470
810
Tensile Strength: Yield (Proof), MPa 250
620

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1000
600
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
24
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
11

Otherwise Unclassified Properties

Base Metal Price, % relative 31
8.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.9
Embodied Energy, MJ/kg 76
42
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 18
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
29
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 3.1
6.5
Thermal Shock Resistance, points 11
22

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.2 to 0.26
Chromium (Cr), % 16 to 18
11.3 to 12.2
Iron (Fe), % 40.4 to 48.7
83.2 to 86.8
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.5
1.0 to 1.2
Nickel (Ni), % 34 to 36
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35