SAE-AISI 9254 Steel vs. ASTM A202 Steel
Both SAE-AISI 9254 steel and ASTM A202 steel are iron alloys.
For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is ASTM A202 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 | |
180 to 200 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 20 | |
17 to 18 |
Fatigue Strength, MPa | 280 | |
240 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 72 | |
73 |
Shear Strength, MPa | 410 | |
360 to 410 |
Tensile Strength: Ultimate (UTS), MPa | 660 | |
590 to 670 |
Tensile Strength: Yield (Proof), MPa | 410 | |
350 to 360 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
260 |
Maximum Temperature: Mechanical, °C | 410 | |
410 |
Melting Completion (Liquidus), °C | 1440 | |
1450 |
Melting Onset (Solidus), °C | 1400 | |
1410 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 46 | |
52 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
8.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.2 | |
2.1 |
Density, g/cm3 | 7.7 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.4 |
Embodied Energy, MJ/kg | 20 | |
19 |
Embodied Water, L/kg | 49 | |
49 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
93 to 96 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 450 | |
330 to 350 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 24 | |
21 to 24 |
Strength to Weight: Bending, points | 22 | |
20 to 22 |
Thermal Diffusivity, mm2/s | 12 | |
14 |
Thermal Shock Resistance, points | 20 | |
17 to 20 |