ASTM A204 Steel vs. ASTM A202 Steel
Both ASTM A204 steel and ASTM A202 steel are iron alloys.
For each property being compared, the top bar is ASTM A204 steel and the bottom bar is ASTM A202 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 160 to 180 | |
180 to 200 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 18 to 22 | |
17 to 18 |
Fatigue Strength, MPa | 200 to 220 | |
240 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 330 to 360 | |
360 to 410 |
Tensile Strength: Ultimate (UTS), MPa | 520 to 590 | |
590 to 670 |
Tensile Strength: Yield (Proof), MPa | 290 to 330 | |
350 to 360 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
260 |
Maximum Temperature: Mechanical, °C | 410 | |
410 |
Melting Completion (Liquidus), °C | 1470 | |
1450 |
Melting Onset (Solidus), °C | 1420 to 1430 | |
1410 |
Specific Heat Capacity, J/kg-K | 470 | |
470 |
Thermal Conductivity, W/m-K | 52 | |
52 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
8.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.4 | |
2.1 |
Density, g/cm3 | 7.9 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.4 |
Embodied Energy, MJ/kg | 20 | |
19 |
Embodied Water, L/kg | 47 | |
49 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 90 to 95 | |
93 to 96 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 to 290 | |
330 to 350 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 18 to 21 | |
21 to 24 |
Strength to Weight: Bending, points | 18 to 20 | |
20 to 22 |
Thermal Diffusivity, mm2/s | 14 | |
14 |
Thermal Shock Resistance, points | 15 to 17 | |
17 to 20 |