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S31730 Stainless Steel vs. EN 1.0425 Steel

Both S31730 stainless steel and EN 1.0425 steel are iron alloys. They have 58% of their average alloy composition in common. There are 27 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 S31730 stainless steel and the bottom bar is EN 1.0425 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
24
Fatigue Strength, MPa 170
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 370
300
Tensile Strength: Ultimate (UTS), MPa 540
470
Tensile Strength: Yield (Proof), MPa 200
260

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 990
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.2
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.6
1.5
Embodied Energy, MJ/kg 63
20
Embodied Water, L/kg 180
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
98
Resilience: Unit (Modulus of Resilience), kJ/m3 99
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 18
17
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 17 to 19
0 to 0.3
Copper (Cu), % 4.0 to 5.0
0 to 0.3
Iron (Fe), % 52.4 to 61
96.9 to 99.18
Manganese (Mn), % 0 to 2.0
0.8 to 1.4
Molybdenum (Mo), % 3.0 to 4.0
0 to 0.080
Nickel (Ni), % 15 to 16.5
0 to 0.3
Niobium (Nb), % 0
0 to 0.020
Nitrogen (N), % 0 to 0.045
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.020