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EN 1.4424 Stainless Steel vs. EN 1.8838 Steel

Both EN 1.4424 stainless steel and EN 1.8838 steel are iron alloys. They have 72% of their average alloy composition in common. There are 32 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 1.4424 stainless steel and the bottom bar is EN 1.8838 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
19
Fatigue Strength, MPa 350 to 370
290
Impact Strength: V-Notched Charpy, J 90 to 91
58
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 520
380
Tensile Strength: Ultimate (UTS), MPa 800
610
Tensile Strength: Yield (Proof), MPa 480 to 500
430

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 960
410
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.6
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.7
Embodied Energy, MJ/kg 46
23
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
100
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 640
500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 3.5
12
Thermal Shock Resistance, points 23
18

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.054
Carbon (C), % 0 to 0.030
0 to 0.18
Chromium (Cr), % 18 to 19
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 68.6 to 72.4
95 to 99.985
Manganese (Mn), % 1.2 to 2.0
0 to 1.8
Molybdenum (Mo), % 2.5 to 3.0
0 to 0.23
Nickel (Ni), % 4.5 to 5.2
0 to 0.85
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0.050 to 0.1
0 to 0.027
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 1.4 to 2.0
0 to 0.65
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.14