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EN 1.6958 Steel vs. S32050 Stainless Steel

Both EN 1.6958 steel and S32050 stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.6958 steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16
46
Fatigue Strength, MPa 700
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 700
540
Tensile Strength: Ultimate (UTS), MPa 1140
770
Tensile Strength: Yield (Proof), MPa 1070
370

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.0
6.0
Embodied Energy, MJ/kg 27
81
Embodied Water, L/kg 60
210

Common Calculations

PREN (Pitting Resistance) 2.9
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
290
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
330
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
27
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 13
3.3
Thermal Shock Resistance, points 39
17

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0 to 0.030
Chromium (Cr), % 1.2 to 1.7
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 92.6 to 94.5
43.1 to 51.8
Manganese (Mn), % 0.2 to 0.5
0 to 1.5
Molybdenum (Mo), % 0.35 to 0.55
6.0 to 6.6
Nickel (Ni), % 3.3 to 3.8
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0.15 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0 to 0.12
0