ASTM A225 Grade C vs. ASTM A225 Grade D
Both ASTM A225 grade C and ASTM A225 grade D are variants of the same material.
For each property being compared, the top bar is ASTM A225 grade C and the bottom bar is ASTM A225 grade D.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 250 | |
190 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 23 | |
21 |
Fatigue Strength, MPa | 390 | |
330 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 520 | |
390 |
Tensile Strength: Ultimate (UTS), MPa | 830 | |
620 |
Tensile Strength: Yield (Proof), MPa | 550 | |
460 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 400 | |
400 |
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 | |
52 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
8.4 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.3 | |
2.3 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.8 | |
1.8 |
Embodied Energy, MJ/kg | 25 | |
24 |
Embodied Water, L/kg | 48 | |
48 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 170 | |
120 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 820 | |
580 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 29 | |
22 |
Strength to Weight: Bending, points | 25 | |
21 |
Thermal Diffusivity, mm2/s | 14 | |
14 |
Thermal Shock Resistance, points | 24 | |
18 |
Alloy Composition
Carbon (C), % | 0 to 0.25 | |
0 to 0.2 |
Iron (Fe), % | 96.6 to 99.39 | |
96.4 to 99.47 |
Manganese (Mn), % | 0 to 1.7 | |
0 to 1.8 |
Nickel (Ni), % | 0.37 to 0.73 | |
0.37 to 0.73 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.035 |
Silicon (Si), % | 0.13 to 0.45 | |
0.080 to 0.56 |
Sulfur (S), % | 0 to 0.035 | |
0 to 0.035 |
Vanadium (V), % | 0.11 to 0.2 | |
0.080 to 0.2 |