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EN 1.8527 Steel vs. S31803 Stainless Steel

Both EN 1.8527 steel and S31803 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 32 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 1.8527 steel and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
29
Fatigue Strength, MPa 520
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
80
Shear Strength, MPa 550
460
Tensile Strength: Ultimate (UTS), MPa 900
710
Tensile Strength: Yield (Proof), MPa 800
500

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 490
1060
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.6
Embodied Energy, MJ/kg 23
49
Embodied Water, L/kg 66
160

Common Calculations

PREN (Pitting Resistance) 5.7
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1670
630
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32
25
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 11
4.3
Thermal Shock Resistance, points 26
20

Alloy Composition

Carbon (C), % 0.040 to 0.12
0 to 0.030
Chromium (Cr), % 3.7 to 4.3
21 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.2 to 95.1
63.7 to 71.9
Manganese (Mn), % 0.85 to 1.2
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.6
2.5 to 3.5
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.020