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EN 1.8821 Steel vs. EN 1.4412 Stainless Steel

Both EN 1.8821 steel and EN 1.4412 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 1.8821 steel and the bottom bar is EN 1.4412 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
34
Fatigue Strength, MPa 280
190
Impact Strength: V-Notched Charpy, J 68
67
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 530
490
Tensile Strength: Yield (Proof), MPa 390
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1000
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.1
Embodied Energy, MJ/kg 21
56
Embodied Water, L/kg 48
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 400
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 13
3.9
Thermal Shock Resistance, points 16
11

Alloy Composition

Aluminum (Al), % 0.020 to 0.030
0
Carbon (C), % 0 to 0.14
0 to 0.070
Chromium (Cr), % 0
18 to 20
Iron (Fe), % 96.8 to 99.98
60.4 to 69
Manganese (Mn), % 0 to 1.6
0 to 1.5
Molybdenum (Mo), % 0 to 0.2
3.0 to 3.5
Nickel (Ni), % 0 to 0.5
10 to 13
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.1
0