ASTM A225 Steel vs. SAE-AISI 4130 Steel
Both ASTM A225 steel and SAE-AISI 4130 steel are iron alloys.
For each property being compared, the top bar is ASTM A225 steel and the bottom bar is SAE-AISI 4130 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 190 to 250 | |
200 to 300 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 21 to 23 | |
13 to 26 |
Fatigue Strength, MPa | 330 to 390 | |
320 to 660 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 390 to 520 | |
340 to 640 |
Tensile Strength: Ultimate (UTS), MPa | 620 to 830 | |
530 to 1040 |
Tensile Strength: Yield (Proof), MPa | 460 to 550 | |
440 to 980 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 400 | |
420 |
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 | 52 | |
43 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
7.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
8.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.3 | |
2.4 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.8 | |
1.5 |
Embodied Energy, MJ/kg | 24 to 25 | |
20 |
Embodied Water, L/kg | 48 | |
50 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 170 | |
83 to 180 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 to 820 | |
500 to 2550 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 22 to 29 | |
19 to 37 |
Strength to Weight: Bending, points | 21 to 25 | |
19 to 29 |
Thermal Diffusivity, mm2/s | 14 | |
12 |
Thermal Shock Resistance, points | 18 to 24 | |
16 to 31 |