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S33550 Stainless Steel vs. ASTM Grade LCA Steel

Both S33550 stainless steel and ASTM grade LCA steel are iron alloys. They have 54% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S33550 stainless steel and the bottom bar is ASTM grade LCA steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
27
Fatigue Strength, MPa 270
170
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 680
500
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
1.4
Embodied Energy, MJ/kg 61
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.25
Cerium (Ce), % 0.025 to 0.070
0
Chromium (Cr), % 25 to 28
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 48.8 to 58.2
96.9 to 100
Lanthanum (La), % 0.025 to 0.070
0
Manganese (Mn), % 0 to 1.5
0 to 0.7
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 16.5 to 20
0
Niobium (Nb), % 0.050 to 0.15
0
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.045
Residuals, % 0
0 to 1.0