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ACI-ASTM CA15M Steel vs. ASTM A387 Grade 11 Steel

Both ACI-ASTM CA15M steel and ASTM A387 grade 11 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 CA15M steel and the bottom bar is ASTM A387 grade 11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 20
25
Fatigue Strength, MPa 330
200 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 690
500 to 600
Tensile Strength: Yield (Proof), MPa 510
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 760
430
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
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.6
Embodied Energy, MJ/kg 29
21
Embodied Water, L/kg 100
53

Common Calculations

PREN (Pitting Resistance) 15
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 670
200 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Diffusivity, mm2/s 7.2
11
Thermal Shock Resistance, points 25
15 to 18

Alloy Composition

Carbon (C), % 0 to 0.15
0.050 to 0.17
Chromium (Cr), % 11.5 to 14
1.0 to 1.5
Iron (Fe), % 82.1 to 88.4
96.2 to 97.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.65
Molybdenum (Mo), % 0.15 to 1.0
0.45 to 0.65
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.65
0.5 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025