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SAE-AISI 9254 Steel vs. ASTM A514 Steel

Both SAE-AISI 9254 steel and ASTM A514 steel are iron alloys.

For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is ASTM A514 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
240 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
18 to 21
Fatigue Strength, MPa 280
470 to 540
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 410
490 to 520
Tensile Strength: Ultimate (UTS), MPa 660
790 to 830
Tensile Strength: Yield (Proof), MPa 410
690 to 770

Thermal Properties

Latent Heat of Fusion, J/g 270
250 to 260
Maximum Temperature: Mechanical, °C 410
400 to 440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
37 to 51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.3 to 8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
2.3 to 3.8
Density, g/cm3 7.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 1.5
1.6 to 1.8
Embodied Energy, MJ/kg 20
21 to 25
Embodied Water, L/kg 49
48 to 57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1280 to 1590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
28 to 29
Strength to Weight: Bending, points 22
24 to 25
Thermal Diffusivity, mm2/s 12
10 to 14
Thermal Shock Resistance, points 20
23 to 24