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S31254 Stainless Steel vs. ASTM Grade LCB Steel

Both S31254 stainless steel and ASTM grade LCB steel are iron alloys. They have 55% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S31254 stainless steel and the bottom bar is ASTM grade LCB steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
27
Fatigue Strength, MPa 290
200
Poisson's Ratio 0.28
0.29
Reduction in Area, % 56
40
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 720
540
Tensile Strength: Yield (Proof), MPa 330
270

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 14
51
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 28
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.4
Embodied Energy, MJ/kg 74
18
Embodied Water, L/kg 190
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
120
Resilience: Unit (Modulus of Resilience), kJ/m3 270
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 15
17

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.3
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
97 to 100
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.22
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.045
Residuals, % 0
0 to 1.0