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SAE-AISI 1212 Steel vs. SAE-AISI 4820 Steel

Both SAE-AISI 1212 steel and SAE-AISI 4820 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 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 SAE-AISI 1212 steel and the bottom bar is SAE-AISI 4820 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 28
21
Fatigue Strength, MPa 200 to 290
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 280 to 370
360
Tensile Strength: Ultimate (UTS), MPa 440 to 620
570
Tensile Strength: Yield (Proof), MPa 260 to 460
370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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 52
51
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 18
24
Embodied Water, L/kg 46
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 560
370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15 to 22
20
Strength to Weight: Bending, points 16 to 20
19
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14 to 20
19

Alloy Composition

Carbon (C), % 0 to 0.13
0.18 to 0.23
Iron (Fe), % 98.5 to 99.07
94.6 to 95.7
Manganese (Mn), % 0.7 to 1.0
0.5 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
3.3 to 3.8
Phosphorus (P), % 0.070 to 0.12
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0.16 to 0.23
0 to 0.040