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EN 1.8201 Steel vs. S31277 Stainless Steel

Both EN 1.8201 steel and S31277 stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.8201 steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 20
45
Fatigue Strength, MPa 310
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Shear Strength, MPa 390
600
Tensile Strength: Ultimate (UTS), MPa 630
860
Tensile Strength: Yield (Proof), MPa 450
410

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1100
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
36
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.5
6.7
Embodied Energy, MJ/kg 36
90
Embodied Water, L/kg 59
220

Common Calculations

PREN (Pitting Resistance) 5.7
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
320
Resilience: Unit (Modulus of Resilience), kJ/m3 530
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 20
25
Thermal Shock Resistance, points 18
19

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 0.020
Chromium (Cr), % 1.9 to 2.6
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 93.6 to 96.2
35.5 to 46.2
Manganese (Mn), % 0.1 to 0.6
0 to 3.0
Molybdenum (Mo), % 0.050 to 0.3
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0.0050 to 0.060
0
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0