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ASTM A182 Grade F12 Class 2 vs. SAE-AISI 1039 Steel

Both ASTM A182 grade F12 class 2 and SAE-AISI 1039 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 1039 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
14 to 18
Fatigue Strength, MPa 220
230 to 370
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34
40 to 45
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
380 to 420
Tensile Strength: Ultimate (UTS), MPa 540
610 to 690
Tensile Strength: Yield (Proof), MPa 310
340 to 580

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
88 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 260
310 to 890
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
22 to 24
Strength to Weight: Bending, points 19
20 to 22
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 16
19 to 22

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.37 to 0.44
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
0.7 to 1.0
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