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ACI-ASTM CA40F Steel vs. ASTM A182 Grade F5a

Both ACI-ASTM CA40F steel and ASTM A182 grade F5a are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40F steel and the bottom bar is ASTM A182 grade F5a.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
25
Fatigue Strength, MPa 320
380
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 770
710
Tensile Strength: Yield (Proof), MPa 550
520

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 750
510
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 28
24
Embodied Water, L/kg 100
69

Common Calculations

PREN (Pitting Resistance) 14
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
160
Resilience: Unit (Modulus of Resilience), kJ/m3 790
700
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 7.2
11
Thermal Shock Resistance, points 28
20

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.25
Chromium (Cr), % 11.5 to 14
4.0 to 6.0
Iron (Fe), % 81.6 to 88.3
91.4 to 95.6
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.44 to 0.65
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0.2 to 0.4
0 to 0.030