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ACI-ASTM CA15M Steel vs. ASTM Grade HI Steel

Both ACI-ASTM CA15M steel and ASTM grade HI steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
11
Fatigue Strength, MPa 330
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 690
550
Tensile Strength: Yield (Proof), MPa 510
270

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
4.1
Embodied Energy, MJ/kg 29
59
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 15
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
52
Resilience: Unit (Modulus of Resilience), kJ/m3 670
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 7.2
3.9
Thermal Shock Resistance, points 25
12

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.5
Chromium (Cr), % 11.5 to 14
26 to 30
Iron (Fe), % 82.1 to 88.4
46.9 to 59.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 1.0
0 to 0.5
Nickel (Ni), % 0 to 1.0
14 to 18
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.65
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.040