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SAE-AISI S1 Steel vs. EN 1.4020 Stainless Steel

Both SAE-AISI S1 steel and EN 1.4020 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S1 steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
770 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1500
1390
Melting Onset (Solidus), °C 1450
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
11
Density, g/cm3 8.0
7.6
Embodied Carbon, kg CO2/kg material 2.6
2.5
Embodied Energy, MJ/kg 37
37
Embodied Water, L/kg 56
150

Common Calculations

PREN (Pitting Resistance) 5.9
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 64
28 to 41
Strength to Weight: Bending, points 22 to 42
25 to 32
Thermal Shock Resistance, points 21 to 56
16 to 23

Alloy Composition

Carbon (C), % 0.4 to 0.55
0 to 0.15
Chromium (Cr), % 1.0 to 1.8
16.5 to 19
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 96.7
62.8 to 71.8
Manganese (Mn), % 0.1 to 0.4
11 to 14
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.3
0.5 to 2.5
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0