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S31727 Stainless Steel vs. EN 1.8201 Steel

Both S31727 stainless steel and EN 1.8201 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 S31727 stainless steel and the bottom bar is EN 1.8201 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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