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SAE-AISI 12L14 Steel vs. ASTM A369 Grade FP91

Both SAE-AISI 12L14 steel and ASTM A369 grade FP91 are iron alloys. They have 89% of their average alloy composition in common. There are 31 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 SAE-AISI 12L14 steel and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 25
19
Fatigue Strength, MPa 190 to 290
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Shear Strength, MPa 280 to 370
410
Tensile Strength: Ultimate (UTS), MPa 440 to 620
670
Tensile Strength: Yield (Proof), MPa 260 to 460
460

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
600
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
26
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
10

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 18
37
Embodied Water, L/kg 47
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64 to 93
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 560
560
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 22
24
Strength to Weight: Bending, points 16 to 20
22
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 14 to 20
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0 to 0.15
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Iron (Fe), % 97.9 to 98.7
87.3 to 90.3
Lead (Pb), % 0.15 to 0.35
0
Manganese (Mn), % 0.85 to 1.2
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0.040 to 0.090
0 to 0.025
Silicon (Si), % 0
0.2 to 0.5
Sulfur (S), % 0.26 to 0.35
0 to 0.025
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010