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EN 1.0644 Steel vs. S38815 Stainless Steel

Both EN 1.0644 steel and S38815 stainless steel are iron alloys. They have 63% 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 EN 1.0644 steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
34
Fatigue Strength, MPa 380
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 420
410
Tensile Strength: Ultimate (UTS), MPa 690
610
Tensile Strength: Yield (Proof), MPa 570
290

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 400
860
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
19
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.8
3.8
Embodied Energy, MJ/kg 24
54
Embodied Water, L/kg 50
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 870
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
22
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 22
15

Alloy Composition

Aluminum (Al), % 0.010 to 0.050
0 to 0.3
Carbon (C), % 0.16 to 0.22
0 to 0.030
Chromium (Cr), % 0 to 0.3
13 to 15
Copper (Cu), % 0 to 0.3
0.75 to 1.5
Iron (Fe), % 96.1 to 98.4
56.1 to 67
Manganese (Mn), % 1.3 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.080
0.75 to 1.5
Nickel (Ni), % 0 to 0.4
13 to 17
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.1 to 0.5
5.5 to 6.5
Sulfur (S), % 0 to 0.035
0 to 0.020
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0.080 to 0.15
0