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SAE-AISI 6150 Steel vs. ASTM A414 Steel

Both SAE-AISI 6150 steel and ASTM A414 steel are iron alloys.

For each property being compared, the top bar is SAE-AISI 6150 steel and the bottom bar is ASTM A414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
110 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 23
15 to 26
Fatigue Strength, MPa 300 to 750
140 to 260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 400 to 730
230 to 370
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
360 to 590
Tensile Strength: Yield (Proof), MPa 420 to 1160
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
49 to 50
Thermal Expansion, µm/m-K 12 to 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.2
Density, g/cm3 7.8
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 2.0
1.5 to 1.6
Embodied Energy, MJ/kg 28
20 to 22
Embodied Water, L/kg 51
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
69 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
100 to 330
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 43
13 to 21
Strength to Weight: Bending, points 21 to 32
14 to 20
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 20 to 38
11 to 17