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EN 1.7106 Steel vs. S31730 Stainless Steel

Both EN 1.7106 steel and S31730 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.7106 steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 500
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 660 to 2020
540

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Mechanical, °C 410
990
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 1.5
4.6
Embodied Energy, MJ/kg 20
63
Embodied Water, L/kg 47
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 73
19
Strength to Weight: Bending, points 22 to 46
18
Thermal Shock Resistance, points 20 to 61
12

Alloy Composition

Carbon (C), % 0.52 to 0.6
0 to 0.030
Chromium (Cr), % 0.2 to 0.45
17 to 19
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 95.9 to 97
52.4 to 61
Manganese (Mn), % 0.7 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 1.6 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.010