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EN 1.7102 Steel vs. S31727 Stainless Steel

Both EN 1.7102 steel and S31727 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.7102 steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 670 to 2010
630

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Mechanical, °C 410
1010
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 1.5
4.7
Embodied Energy, MJ/kg 20
64
Embodied Water, L/kg 48
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 72
22
Strength to Weight: Bending, points 22 to 46
20
Thermal Shock Resistance, points 20 to 60
14

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
17.5 to 19
Copper (Cu), % 0
2.8 to 4.0
Iron (Fe), % 96.2 to 97.3
53.7 to 61.3
Manganese (Mn), % 0.5 to 0.8
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), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030