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Annealed And Cold Drawn SAE-AISI 1045 vs. Cold-finished SAE-AISI 52100

Both annealed and cold drawn SAE-AISI 1045 and cold-finished SAE-AISI 52100 are iron alloys. Both are furnished in the annealed and cold-drawn condition. They have a very high 98% 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 annealed and cold drawn SAE-AISI 1045 and the bottom bar is cold-finished SAE-AISI 52100.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
10
Fatigue Strength, MPa 360
340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 400
420
Tensile Strength: Ultimate (UTS), MPa 660
700
Tensile Strength: Yield (Proof), MPa 570
560

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
430
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
47
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.5

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
69
Resilience: Unit (Modulus of Resilience), kJ/m3 870
840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 21
21

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.93 to 1.1
Chromium (Cr), % 0
1.4 to 1.6
Iron (Fe), % 98.5 to 99
96.5 to 97.3
Manganese (Mn), % 0.6 to 0.9
0.25 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.015