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ASTM A182 Grade F12 Class 1 vs. SAE-AISI 4130 Steel

Both ASTM A182 grade F12 class 1 and SAE-AISI 4130 steel are iron alloys. Their average alloy composition is basically identical. 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 A182 grade F12 class 1 and the bottom bar is SAE-AISI 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200 to 300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
13 to 26
Fatigue Strength, MPa 180
320 to 660
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
340 to 640
Tensile Strength: Ultimate (UTS), MPa 470
530 to 1040
Tensile Strength: Yield (Proof), MPa 250
440 to 980

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
420
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
43
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 52
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
83 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 160
500 to 2550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
19 to 37
Strength to Weight: Bending, points 17
19 to 29
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14
16 to 31

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.28 to 0.33
Chromium (Cr), % 0.8 to 1.3
0.8 to 1.1
Iron (Fe), % 96.8 to 98.4
97.3 to 98.2
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.15 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0 to 0.040