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ACI-ASTM CA15M Steel vs. ASTM Grade HD Steel

Both ACI-ASTM CA15M steel and ASTM grade HD steel are iron alloys. They have 79% of their average alloy composition in common. There are 31 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 grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
9.1
Fatigue Strength, MPa 330
140
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 690
590
Tensile Strength: Yield (Proof), MPa 510
270

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 27
16
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.1
3.1
Embodied Energy, MJ/kg 29
45
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 15
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
44
Resilience: Unit (Modulus of Resilience), kJ/m3 670
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 7.2
4.3
Thermal Shock Resistance, points 25
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.5
Chromium (Cr), % 11.5 to 14
26 to 30
Iron (Fe), % 82.1 to 88.4
58.4 to 70
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.15 to 1.0
0 to 0.5
Nickel (Ni), % 0 to 1.0
4.0 to 7.0
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