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EN 1.0540 Steel vs. S31655 Stainless Steel

Both EN 1.0540 steel and S31655 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 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 1.0540 steel and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
39
Fatigue Strength, MPa 210
300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 400
490
Tensile Strength: Ultimate (UTS), MPa 660
710
Tensile Strength: Yield (Proof), MPa 330
350

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 19
46
Embodied Water, L/kg 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
230
Resilience: Unit (Modulus of Resilience), kJ/m3 290
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0.47 to 0.55
0 to 0.030
Chromium (Cr), % 0 to 0.4
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.2 to 98.9
63.2 to 71.9
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0.5 to 1.5
Nickel (Ni), % 0 to 0.4
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.045
0 to 0.015