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ASTM A182 Grade F12 Class 2 vs. SAE-AISI 1049 Steel

Both ASTM A182 grade F12 class 2 and SAE-AISI 1049 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 1049 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
11 to 17
Fatigue Strength, MPa 220
250 to 400
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34
34 to 46
Shear Modulus, GPa 73
72
Shear Strength, MPa 340
420 to 450
Tensile Strength: Ultimate (UTS), MPa 540
680 to 750
Tensile Strength: Yield (Proof), MPa 310
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
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 43
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
18
Embodied Water, L/kg 52
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
75 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 260
370 to 1090
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
24 to 27
Strength to Weight: Bending, points 19
22 to 23
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 16
22 to 24

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.46 to 0.53
Chromium (Cr), % 0.8 to 1.3
0
Iron (Fe), % 96.4 to 98.3
98.5 to 98.9
Manganese (Mn), % 0.3 to 0.8
0.6 to 0.9
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