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EN 1.6958 Steel vs. S32520 Stainless Steel

Both EN 1.6958 steel and S32520 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 33 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 S32520 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
28
Fatigue Strength, MPa 700
460
Poisson's Ratio 0.29
0.27
Reduction in Area, % 56
46
Shear Modulus, GPa 73
80
Shear Strength, MPa 700
560
Tensile Strength: Ultimate (UTS), MPa 1140
860
Tensile Strength: Yield (Proof), MPa 1070
630

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 450
1100
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
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.0
Embodied Energy, MJ/kg 27
55
Embodied Water, L/kg 60
180

Common Calculations

PREN (Pitting Resistance) 2.9
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
220
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
960
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 40
31
Strength to Weight: Bending, points 31
26
Thermal Diffusivity, mm2/s 13
4.1
Thermal Shock Resistance, points 39
24

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
24 to 26
Copper (Cu), % 0
0.5 to 2.0
Iron (Fe), % 92.6 to 94.5
57.3 to 66.8
Manganese (Mn), % 0.2 to 0.5
0 to 1.5
Molybdenum (Mo), % 0.35 to 0.55
3.0 to 4.0
Nickel (Ni), % 3.3 to 3.8
5.5 to 8.0
Nitrogen (N), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0.15 to 0.3
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0 to 0.12
0