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EN 1.0303 Steel vs. S31100 Stainless Steel

Both EN 1.0303 steel and S31100 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 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 1.0303 steel and the bottom bar is S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84 to 120
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 25
4.5
Fatigue Strength, MPa 150 to 230
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 220 to 260
580
Tensile Strength: Ultimate (UTS), MPa 290 to 410
1000
Tensile Strength: Yield (Proof), MPa 200 to 320
710

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 18
44
Embodied Water, L/kg 46
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 94
40
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 270
1240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 10 to 15
36
Strength to Weight: Bending, points 12 to 16
29
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 9.2 to 13
28

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0.020 to 0.060
0 to 0.060
Chromium (Cr), % 0
25 to 27
Iron (Fe), % 99.335 to 99.71
63.6 to 69
Manganese (Mn), % 0.25 to 0.4
0 to 1.0
Nickel (Ni), % 0
6.0 to 7.0
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Titanium (Ti), % 0
0 to 0.25