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EN 1.5503 Steel vs. S31100 Stainless Steel

Both EN 1.5503 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 1.5503 steel and the bottom bar is S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 160
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 17
4.5
Fatigue Strength, MPa 180 to 280
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 270 to 320
580
Tensile Strength: Ultimate (UTS), MPa 400 to 520
1000
Tensile Strength: Yield (Proof), MPa 270 to 430
710

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
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 41 to 81
40
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 490
1240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 14 to 19
36
Strength to Weight: Bending, points 15 to 18
29
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 12 to 15
28

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0 to 0.060
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.4 to 99.239
63.6 to 69
Manganese (Mn), % 0.6 to 0.8
0 to 1.0
Nickel (Ni), % 0
6.0 to 7.0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Titanium (Ti), % 0
0 to 0.25