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ACI-ASTM CN7M Steel vs. SAE-AISI 9310 Steel

Both ACI-ASTM CN7M steel and SAE-AISI 9310 steel are iron alloys. They have 48% 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 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
17 to 19
Fatigue Strength, MPa 190
300 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 480
820 to 910
Tensile Strength: Yield (Proof), MPa 200
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
440
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
48
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 32
4.4
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.6
1.8
Embodied Energy, MJ/kg 78
24
Embodied Water, L/kg 210
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 110
540 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
29 to 32
Strength to Weight: Bending, points 17
25 to 27
Thermal Diffusivity, mm2/s 5.6
13
Thermal Shock Resistance, points 12
24 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.080 to 0.13
Chromium (Cr), % 19 to 22
1.0 to 1.4
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
93.8 to 95.2
Manganese (Mn), % 0 to 1.5
0.45 to 0.65
Molybdenum (Mo), % 2.0 to 3.0
0.080 to 0.15
Nickel (Ni), % 27.5 to 30.5
3.0 to 3.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0.2 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.012