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ASTM A414 Steel vs. SAE-AISI 4615 Steel

Both ASTM A414 steel and SAE-AISI 4615 steel are iron alloys.

For each property being compared, the top bar is ASTM A414 steel and the bottom bar is SAE-AISI 4615 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 180
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 26
27
Fatigue Strength, MPa 140 to 260
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 230 to 370
310
Tensile Strength: Ultimate (UTS), MPa 360 to 590
480
Tensile Strength: Yield (Proof), MPa 190 to 350
350

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 49 to 50
47
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
3.2
Density, g/cm3 7.8 to 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
1.6
Embodied Energy, MJ/kg 20 to 22
22
Embodied Water, L/kg 48
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 21
17
Strength to Weight: Bending, points 14 to 20
17
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 11 to 17
16