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ACI-ASTM CA15 Steel vs. ASTM A387 Grade 22 Steel

Both ACI-ASTM CA15 steel and ASTM A387 grade 22 steel are iron alloys. They have 88% 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 CA15 steel and the bottom bar is ASTM A387 grade 22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
21
Fatigue Strength, MPa 370
160 to 240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 700
480 to 600
Tensile Strength: Yield (Proof), MPa 570
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 750
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1500
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
3.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.7
Embodied Energy, MJ/kg 28
23
Embodied Water, L/kg 100
58

Common Calculations

PREN (Pitting Resistance) 14
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 820
140 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
17 to 21
Strength to Weight: Bending, points 23
17 to 20
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 26
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.15
0.050 to 0.15
Chromium (Cr), % 11.5 to 14
2.0 to 2.5
Iron (Fe), % 81.8 to 88.5
95.1 to 96.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.025