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S38815 Stainless Steel vs. EN 1.8918 Steel

Both S38815 stainless steel and EN 1.8918 steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 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 S38815 stainless steel and the bottom bar is EN 1.8918 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
19
Fatigue Strength, MPa 230
330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 410
400
Tensile Strength: Ultimate (UTS), MPa 610
640
Tensile Strength: Yield (Proof), MPa 290
490

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.5
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.7
Embodied Energy, MJ/kg 54
24
Embodied Water, L/kg 140
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220
640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
23
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0 to 0.3
0.020 to 0.050
Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 13 to 15
0 to 0.3
Copper (Cu), % 0.75 to 1.5
0 to 0.7
Iron (Fe), % 56.1 to 67
95.2 to 98.9
Manganese (Mn), % 0 to 2.0
1.1 to 1.7
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.1
Nickel (Ni), % 13 to 17
0 to 0.8
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 5.5 to 6.5
0 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.2