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EN 1.8522 Steel vs. S31730 Stainless Steel

Both EN 1.8522 steel and S31730 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.8522 steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 380
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 730 to 1250
540

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 470
990
Melting Completion (Liquidus), °C 1460
1430
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 4.2
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.2
4.6
Embodied Energy, MJ/kg 31
63
Embodied Water, L/kg 63
180

Common Calculations

PREN (Pitting Resistance) 6.2
30
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 44
19
Strength to Weight: Bending, points 23 to 33
18
Thermal Shock Resistance, points 21 to 36
12

Alloy Composition

Carbon (C), % 0.29 to 0.36
0 to 0.030
Chromium (Cr), % 2.8 to 3.3
17 to 19
Copper (Cu), % 0 to 0.1
4.0 to 5.0
Iron (Fe), % 93.7 to 96
52.4 to 61
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.7 to 1.2
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.010
Vanadium (V), % 0.15 to 0.25
0