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ACI-ASTM CA40 Steel vs. ASTM Grade HL Steel

Both ACI-ASTM CA40 steel and ASTM grade HL steel are iron alloys. They have 62% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is ASTM grade HL steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
11
Fatigue Strength, MPa 460
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 910
500
Tensile Strength: Yield (Proof), MPa 860
270

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1500
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
27
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.5
Embodied Energy, MJ/kg 28
65
Embodied Water, L/kg 100
210

Common Calculations

PREN (Pitting Resistance) 14
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
48
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
18
Strength to Weight: Bending, points 27
18
Thermal Shock Resistance, points 33
11

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.2 to 0.6
Chromium (Cr), % 11.5 to 14
28 to 32
Iron (Fe), % 81.5 to 88.3
40.8 to 53.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 0 to 1.0
18 to 22
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.040