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SAE-AISI 1070 Steel vs. ACI-ASTM CK3MCuN Steel

Both SAE-AISI 1070 steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 54% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1070 steel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 13
39
Fatigue Strength, MPa 270 to 350
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 640 to 760
620
Tensile Strength: Yield (Proof), MPa 420 to 560
290

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1090
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
29
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
5.6
Embodied Energy, MJ/kg 19
76
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
200
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 27
21
Strength to Weight: Bending, points 21 to 24
20
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 21 to 25
14

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.025
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 98.3 to 98.8
49.5 to 56.3
Manganese (Mn), % 0.6 to 0.9
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.010