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EN 1.6957 Steel vs. S41050 Stainless Steel

Both EN 1.6957 steel and S41050 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 32 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 1.6957 steel and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
25
Fatigue Strength, MPa 530
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 570
300
Tensile Strength: Ultimate (UTS), MPa 930
470
Tensile Strength: Yield (Proof), MPa 780
230

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 450
720
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.9
Embodied Energy, MJ/kg 29
27
Embodied Water, L/kg 60
97

Common Calculations

PREN (Pitting Resistance) 2.7
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
98
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33
17
Strength to Weight: Bending, points 27
17
Thermal Diffusivity, mm2/s 13
7.2
Thermal Shock Resistance, points 27
17

Alloy Composition

Carbon (C), % 0.22 to 0.32
0 to 0.040
Chromium (Cr), % 1.2 to 1.8
10.5 to 12.5
Iron (Fe), % 92.7 to 94.7
84.2 to 88.9
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.4 to 4.0
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.0070
0 to 0.030
Vanadium (V), % 0.050 to 0.15
0