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ACI-ASTM CA6N Steel vs. SAE-AISI A2 Steel

Both ACI-ASTM CA6N steel and SAE-AISI A2 steel are iron alloys. They have 87% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6N steel and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Tensile Strength: Ultimate (UTS), MPa 1080
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
38
Thermal Expansion, µm/m-K 9.9
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
5.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.7
Embodied Energy, MJ/kg 35
38
Embodied Water, L/kg 110
73

Common Calculations

PREN (Pitting Resistance) 12
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
25 to 73
Strength to Weight: Bending, points 30
23 to 46
Thermal Diffusivity, mm2/s 6.1
10
Thermal Shock Resistance, points 40
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.060
1.0 to 1.1
Chromium (Cr), % 10.5 to 12.5
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 77.9 to 83.5
89.4 to 93.3
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 6.0 to 8.0
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Vanadium (V), % 0
0.15 to 0.5