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EN 1.5521 Steel vs. S31727 Stainless Steel

Both EN 1.5521 steel and S31727 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 28 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 1.5521 steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
40
Fatigue Strength, MPa 210 to 310
240
Poisson's Ratio 0.29
0.28
Reduction in Area, % 59 to 72
56
Shear Modulus, GPa 73
78
Shear Strength, MPa 310 to 360
430
Tensile Strength: Ultimate (UTS), MPa 430 to 1390
630
Tensile Strength: Yield (Proof), MPa 300 to 490
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
4.7
Embodied Energy, MJ/kg 19
64
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
200
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 630
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 49
22
Strength to Weight: Bending, points 16 to 35
20
Thermal Shock Resistance, points 13 to 41
14

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0 to 0.030
Chromium (Cr), % 0
17.5 to 19
Copper (Cu), % 0 to 0.25
2.8 to 4.0
Iron (Fe), % 98 to 98.9
53.7 to 61.3
Manganese (Mn), % 0.9 to 1.2
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030