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SAE-AISI 52100 Steel vs. SAE-AISI 1018 Steel

Both SAE-AISI 52100 steel and SAE-AISI 1018 steel are iron alloys. They have a very high 97% 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 52100 steel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 20
17 to 27
Fatigue Strength, MPa 250 to 340
180 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 370 to 420
280 to 300
Tensile Strength: Ultimate (UTS), MPa 590 to 2010
430 to 480
Tensile Strength: Yield (Proof), MPa 360 to 560
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 47
52
Thermal Expansion, µm/m-K 12 to 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 310
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 840
150 to 430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 72
15 to 17
Strength to Weight: Bending, points 20 to 45
16 to 17
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 19 to 61
14 to 15

Alloy Composition

Carbon (C), % 0.93 to 1.1
0.15 to 0.2
Chromium (Cr), % 1.4 to 1.6
0
Iron (Fe), % 96.5 to 97.3
98.8 to 99.25
Manganese (Mn), % 0.25 to 0.45
0.6 to 0.9
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.015
0 to 0.050