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EN 1.6217 Steel vs. EN 1.4421 Stainless Steel

Both EN 1.6217 steel and EN 1.4421 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.6217 steel and the bottom bar is EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
11 to 17
Fatigue Strength, MPa 280
380 to 520
Impact Strength: V-Notched Charpy, J 67
30 to 67
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 550
880 to 1100
Tensile Strength: Yield (Proof), MPa 390
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
16
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
12
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 21
36
Embodied Water, L/kg 49
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 410
960 to 2270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
31 to 39
Strength to Weight: Bending, points 19
26 to 30
Thermal Diffusivity, mm2/s 14
4.4
Thermal Shock Resistance, points 16
31 to 39

Alloy Composition

Aluminum (Al), % 0.020 to 0.050
0
Carbon (C), % 0 to 0.16
0 to 0.060
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 96.6 to 99
74.4 to 80.5
Manganese (Mn), % 0.85 to 1.7
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 0.15 to 0.85
4.0 to 5.5
Niobium (Nb), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.020
Vanadium (V), % 0 to 0.050
0