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SAE-AISI S1 Steel vs. EN 1.4905 Stainless Steel

Both SAE-AISI S1 steel and EN 1.4905 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
740

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1500
1480
Melting Onset (Solidus), °C 1450
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
26
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 37
40
Embodied Water, L/kg 56
90

Common Calculations

PREN (Pitting Resistance) 5.9
15
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 64
26
Strength to Weight: Bending, points 22 to 42
23
Thermal Diffusivity, mm2/s 11
7.0
Thermal Shock Resistance, points 21 to 56
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0.4 to 0.55
0.090 to 0.13
Chromium (Cr), % 1.0 to 1.8
8.5 to 9.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 91.6 to 96.7
86.2 to 88.8
Manganese (Mn), % 0.1 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 0 to 0.3
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.050 to 0.090
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 1.2
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 1.5 to 3.0
0.9 to 1.1
Vanadium (V), % 0.15 to 0.3
0.18 to 0.25