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S21900 Stainless Steel vs. SAE-AISI 12L14 Steel

Both S21900 stainless steel and SAE-AISI 12L14 steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is SAE-AISI 12L14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
11 to 25
Fatigue Strength, MPa 380
190 to 290
Poisson's Ratio 0.28
0.29
Reduction in Area, % 57
39 to 51
Shear Modulus, GPa 78
72
Shear Strength, MPa 510
280 to 370
Tensile Strength: Ultimate (UTS), MPa 710
440 to 620
Tensile Strength: Yield (Proof), MPa 390
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
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
7.9
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 43
18
Embodied Water, L/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
64 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 380
180 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
15 to 22
Strength to Weight: Bending, points 23
16 to 20
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 15
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 19 to 21.5
0
Iron (Fe), % 59.4 to 67.4
97.9 to 98.7
Lead (Pb), % 0
0.15 to 0.35
Manganese (Mn), % 8.0 to 10
0.85 to 1.2
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0.040 to 0.090
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.26 to 0.35