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ACI-ASTM CA15M Steel vs. ASTM A182 Grade F5a

Both ACI-ASTM CA15M steel and ASTM A182 grade F5a are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15M steel and the bottom bar is ASTM A182 grade F5a.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
310
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 330
380
Poisson's Ratio 0.28
0.29
Reduction in Area, % 34
56
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 690
710
Tensile Strength: Yield (Proof), MPa 510
520

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 760
510
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
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 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.8
Embodied Energy, MJ/kg 29
24
Embodied Water, L/kg 100
69

Common Calculations

PREN (Pitting Resistance) 15
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
160
Resilience: Unit (Modulus of Resilience), kJ/m3 670
700
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 7.2
11
Thermal Shock Resistance, points 25
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.25
Chromium (Cr), % 11.5 to 14
4.0 to 6.0
Iron (Fe), % 82.1 to 88.4
91.4 to 95.6
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 0.15 to 1.0
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 0.65
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030