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EN 1.0314 Steel vs. S31254 Stainless Steel

Both EN 1.0314 steel and S31254 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 1.0314 steel and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92 to 120
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24 to 25
40
Fatigue Strength, MPa 140 to 220
290
Poisson's Ratio 0.29
0.28
Reduction in Area, % 78 to 86
56
Shear Modulus, GPa 73
80
Shear Strength, MPa 200 to 250
490
Tensile Strength: Ultimate (UTS), MPa 320 to 400
720
Tensile Strength: Yield (Proof), MPa 190 to 310
330

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1090
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 53
14
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
28
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.4
5.5
Embodied Energy, MJ/kg 18
74
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 87
240
Resilience: Unit (Modulus of Resilience), kJ/m3 95 to 250
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 11 to 14
25
Strength to Weight: Bending, points 13 to 15
22
Thermal Diffusivity, mm2/s 14
3.8
Thermal Shock Resistance, points 10 to 13
15

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 99.365 to 99.78
51.4 to 56.3
Manganese (Mn), % 0.2 to 0.4
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 0
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.010