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ACI-ASTM CN7M Steel vs. SAE-AISI 1030 Steel

Both ACI-ASTM CN7M steel and SAE-AISI 1030 steel are iron alloys. They have 44% 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 ACI-ASTM CN7M steel and the bottom bar is SAE-AISI 1030 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
14 to 22
Fatigue Strength, MPa 190
210 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 480
530 to 590
Tensile Strength: Yield (Proof), MPa 200
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 21
51
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 32
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.4
Embodied Energy, MJ/kg 78
18
Embodied Water, L/kg 210
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
77 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
230 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
19 to 21
Strength to Weight: Bending, points 17
18 to 20
Thermal Diffusivity, mm2/s 5.6
14
Thermal Shock Resistance, points 12
17 to 19

Alloy Composition

Carbon (C), % 0 to 0.070
0.28 to 0.34
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
98.7 to 99.12
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0 to 0.050