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SAE-AISI 1045 Steel vs. ASTM A514 Steel

Both SAE-AISI 1045 steel and ASTM A514 steel are iron alloys. 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 1045 steel and the bottom bar is ASTM A514 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
240 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 18
18 to 21
Fatigue Strength, MPa 220 to 370
470 to 540
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 380 to 410
490 to 520
Tensile Strength: Ultimate (UTS), MPa 620 to 680
790 to 830
Tensile Strength: Yield (Proof), MPa 330 to 580
690 to 770

Thermal Properties

Latent Heat of Fusion, J/g 250
250 to 260
Maximum Temperature: Mechanical, °C 400
400 to 440
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 51
37 to 51
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.2 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.3 to 8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.3 to 3.8
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 1.4
1.6 to 1.8
Embodied Energy, MJ/kg 18
21 to 25
Embodied Water, L/kg 46
48 to 57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 93
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 900
1280 to 1590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 24
28 to 29
Strength to Weight: Bending, points 21 to 22
24 to 25
Thermal Diffusivity, mm2/s 14
10 to 14
Thermal Shock Resistance, points 20 to 22
23 to 24