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EN 1.8201 Steel vs. S31727 Stainless Steel

Both EN 1.8201 steel and S31727 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.8201 steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
40
Fatigue Strength, MPa 310
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 390
430
Tensile Strength: Ultimate (UTS), MPa 630
630
Tensile Strength: Yield (Proof), MPa 450
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 450
1010
Melting Completion (Liquidus), °C 1500
1440
Melting Onset (Solidus), °C 1450
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
24
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 2.5
4.7
Embodied Energy, MJ/kg 36
64
Embodied Water, L/kg 59
180

Common Calculations

PREN (Pitting Resistance) 5.7
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
200
Resilience: Unit (Modulus of Resilience), kJ/m3 530
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
20
Thermal Shock Resistance, points 18
14

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 1.9 to 2.6
17.5 to 19
Copper (Cu), % 0
2.8 to 4.0
Iron (Fe), % 93.6 to 96.2
53.7 to 61.3
Manganese (Mn), % 0.1 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.050 to 0.3
3.8 to 4.5
Nickel (Ni), % 0
14.5 to 16.5
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0.15 to 0.21
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.0050 to 0.060
0
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0