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ASTM A356 Grade 1 vs. ACI-ASTM CA28MWV Steel

Both ASTM A356 grade 1 and ACI-ASTM CA28MWV steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 84% of their average alloy composition in common. There are 30 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 ASTM A356 grade 1 and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
11
Fatigue Strength, MPa 200
470
Poisson's Ratio 0.29
0.28
Reduction in Area, % 39
27
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 550
1080
Tensile Strength: Yield (Proof), MPa 280
870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
740
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 18
44
Embodied Water, L/kg 45
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
1920
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
38
Strength to Weight: Bending, points 19
30
Thermal Diffusivity, mm2/s 14
6.6
Thermal Shock Resistance, points 18
40

Alloy Composition

Carbon (C), % 0 to 0.35
0.2 to 0.28
Chromium (Cr), % 0
11 to 12.5
Iron (Fe), % 98.3 to 100
81.4 to 85.8
Manganese (Mn), % 0 to 0.7
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0
0.5 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3