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EN 1.7390 Steel vs. S41041 Stainless Steel

Both EN 1.7390 steel and S41041 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7390 steel and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
17
Fatigue Strength, MPa 310
350
Impact Strength: V-Notched Charpy, J 46
31
Poisson's Ratio 0.29
0.28
Reduction in Area, % 50
56
Shear Modulus, GPa 74
76
Shear Strength, MPa 440
560
Tensile Strength: Ultimate (UTS), MPa 710
910
Tensile Strength: Yield (Proof), MPa 480
580

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 510
740
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
29
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.2
Embodied Energy, MJ/kg 23
31
Embodied Water, L/kg 69
100

Common Calculations

PREN (Pitting Resistance) 6.8
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
140
Resilience: Unit (Modulus of Resilience), kJ/m3 600
860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
32
Strength to Weight: Bending, points 23
27
Thermal Diffusivity, mm2/s 11
7.8
Thermal Shock Resistance, points 20
33

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.18
0.13 to 0.18
Chromium (Cr), % 4.0 to 6.0
11.5 to 13
Iron (Fe), % 91.9 to 95.3
84.5 to 87.8
Manganese (Mn), % 0.3 to 0.8
0.4 to 0.6
Molybdenum (Mo), % 0.45 to 0.65
0 to 0.2
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030