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ASTM A182 Grade F12 Class 2 vs. SAE-AISI 1012 Steel

Both ASTM A182 grade F12 class 2 and SAE-AISI 1012 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F12 class 2 and the bottom bar is SAE-AISI 1012 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
21 to 31
Fatigue Strength, MPa 220
150 to 230
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34
45 to 57
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
230 to 250
Tensile Strength: Ultimate (UTS), MPa 540
360 to 400
Tensile Strength: Yield (Proof), MPa 310
200 to 330

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
18
Embodied Water, L/kg 52
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
80 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 260
110 to 300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
13 to 14
Strength to Weight: Bending, points 19
14 to 15
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 16
11 to 13

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.1 to 0.15
Chromium (Cr), % 0.8 to 1.3
0
Iron (Fe), % 96.4 to 98.3
99.16 to 99.6
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.1 to 0.6
0
Sulfur (S), % 0 to 0.040
0 to 0.050