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EN 1.7201 Steel vs. S41045 Stainless Steel

Both EN 1.7201 steel and S41045 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 25 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 EN 1.7201 steel and the bottom bar is S41045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 160
160
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 430 to 1300
430

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
740
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
29
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 20
31
Embodied Water, L/kg 51
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 46
16
Strength to Weight: Bending, points 16 to 34
16
Thermal Diffusivity, mm2/s 12
7.8
Thermal Shock Resistance, points 13 to 38
16

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.030
Chromium (Cr), % 0.9 to 1.2
12 to 13
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.9 to 98.3
83.8 to 88
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.6
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030