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SAE-AISI 1022 Steel vs. SAE-AISI 94B30 Steel

Both SAE-AISI 1022 steel and SAE-AISI 94B30 steel are iron alloys. They have a very high 99% 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 1022 steel and the bottom bar is SAE-AISI 94B30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 160
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 26
25
Fatigue Strength, MPa 190 to 300
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310 to 340
320
Tensile Strength: Ultimate (UTS), MPa 480 to 550
500
Tensile Strength: Yield (Proof), MPa 260 to 450
300

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
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 46
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 530
250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 19
18
Strength to Weight: Bending, points 17 to 19
18
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 15 to 17
15

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.18 to 0.23
0.28 to 0.33
Chromium (Cr), % 0
0.3 to 0.5
Iron (Fe), % 98.7 to 99.12
97 to 98.1
Manganese (Mn), % 0.7 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 0
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040