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EN 1.4438 Stainless Steel vs. EN 1.0420 Cast Steel

Both EN 1.4438 stainless steel and EN 1.0420 cast steel are iron alloys. They have 62% 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 1.4438 stainless steel and the bottom bar is EN 1.0420 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
28
Fatigue Strength, MPa 220
170
Impact Strength: V-Notched Charpy, J 90
31
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 620
460
Tensile Strength: Yield (Proof), MPa 250
220

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
53
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.7
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.4
1.4
Embodied Energy, MJ/kg 60
18
Embodied Water, L/kg 160
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 3.7
14
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19.5
0
Iron (Fe), % 57.3 to 66.5
99.935 to 100
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 13 to 16
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.030