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ASTM A369 Grade FP91 vs. SAE-AISI 1212 Steel

Both ASTM A369 grade FP91 and SAE-AISI 1212 steel 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 ASTM A369 grade FP91 and the bottom bar is SAE-AISI 1212 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
11 to 28
Fatigue Strength, MPa 320
200 to 290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 410
280 to 370
Tensile Strength: Ultimate (UTS), MPa 670
440 to 620
Tensile Strength: Yield (Proof), MPa 460
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
400
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 26
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 37
18
Embodied Water, L/kg 88
46

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.13
Chromium (Cr), % 8.0 to 9.5
0
Iron (Fe), % 87.3 to 90.3
98.5 to 99.07
Manganese (Mn), % 0.3 to 0.6
0.7 to 1.0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0.070 to 0.12
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.025
0.16 to 0.23
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0