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S21904 Stainless Steel vs. ASTM Grade LCB Steel

Both S21904 stainless steel and ASTM grade LCB steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 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 S21904 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, % 17 to 51
27
Fatigue Strength, MPa 380 to 550
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
540
Tensile Strength: Yield (Proof), MPa 390 to 910
270

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
400
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
51
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 43
18
Embodied Water, L/kg 160
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 310
120
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 2070
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 36
19
Strength to Weight: Bending, points 23 to 29
19
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 15 to 21
17

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.3
Chromium (Cr), % 19 to 21.5
0
Iron (Fe), % 59.5 to 67.4
97 to 100
Manganese (Mn), % 8.0 to 10
0 to 1.0
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
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