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ASTM A356 Grade 1 vs. ACI-ASTM CA6N Steel

Both ASTM A356 grade 1 and ACI-ASTM CA6N steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 81% of their average alloy composition in common. There are 30 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 ASTM A356 grade 1 and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
17
Fatigue Strength, MPa 200
640
Poisson's Ratio 0.29
0.28
Reduction in Area, % 39
57
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 550
1080
Tensile Strength: Yield (Proof), MPa 280
1060

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
740
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
23
Thermal Expansion, µm/m-K 12
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.5
Embodied Energy, MJ/kg 18
35
Embodied Water, L/kg 45
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 210
2900
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
6.1
Thermal Shock Resistance, points 18
40

Alloy Composition

Carbon (C), % 0 to 0.35
0 to 0.060
Chromium (Cr), % 0
10.5 to 12.5
Iron (Fe), % 98.3 to 100
77.9 to 83.5
Manganese (Mn), % 0 to 0.7
0 to 0.5
Nickel (Ni), % 0
6.0 to 8.0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020