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EN 1.4439 Stainless Steel vs. EN 1.8503 Steel

Both EN 1.4439 stainless steel and EN 1.8503 steel are iron alloys. They have 66% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4439 stainless steel and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
16
Fatigue Strength, MPa 270
600
Impact Strength: V-Notched Charpy, J 90
39
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 470
610
Tensile Strength: Ultimate (UTS), MPa 680
1000
Tensile Strength: Yield (Proof), MPa 310
910

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
41
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 22
3.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.5
2.3
Embodied Energy, MJ/kg 61
33
Embodied Water, L/kg 160
57

Common Calculations

PREN (Pitting Resistance) 35
3.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240
2200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
35
Strength to Weight: Bending, points 22
28
Thermal Diffusivity, mm2/s 3.8
11
Thermal Shock Resistance, points 15
29

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.030
0.16 to 0.24
Chromium (Cr), % 16.5 to 18.5
1.2 to 1.5
Iron (Fe), % 58.7 to 66.9
95.8 to 97.5
Manganese (Mn), % 0 to 2.0
0.4 to 0.8
Molybdenum (Mo), % 4.0 to 5.0
0.65 to 0.8
Nickel (Ni), % 12.5 to 14.5
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Vanadium (V), % 0
0.25 to 0.35